Chapter Fifty Four
The ruins of Megaborealis were a carcass, picked clean and left to rot. Dust clouds curled and unraveled in sluggish eddies as Koron passed by, his sensors pushed hard to comprehend the hive’s massive scale. Spires rose for miles, jagged and uneven, clawing up into a Warp-storm choked sky, but the smog trapped in the lower hab-blocks refused to lift. Centuries of pollution clung stubbornly to the streets, unmoved even by the Immaterium pressing down from above.
Worse still were the corpses.
Entire roadways were dark with dried blood. Bodies swayed from chains strung between lampposts and balconies, impaled on iron pikes or nailed to walls in crude, ritualized displays. Young, old, man or woman, without pattern or mercy. Chaos had not merely conquered the city; it had performed upon it, turning suffering into devotion and death into offering.
The soundscape never rested. Distant artillery rumbled in staccato bursts, broken again and again by the sharp crack of thunder and the violent detonation of lightning striking the city proper. At the center of it all stood the orbital spire, a needle of defiance and corruption alike. Anti-aircraft batteries fired almost without pause from both the hive and the tower itself, saturating a narrow hundred meter cylinder of clear air around it with overlapping curtains of weapons fire.
Koron let out a low, involuntary whistle at the sight. The sheer volume of ammunition being burned to keep that sliver of realspace denied was staggering.
‘No Thunderhawk, Storm Talon, or drop pod is getting through that without catching a few dozen rounds.’
‘Yup,’ Sasha replied absently, her attention still buried in threat vectors and incoming data. ‘If I had to guess, I’d say the base of the tower is where they’re anchoring the storm rituals. That’s speculation, though. There’s still an uncomfortable amount we don’t understand about demons or their rituals.’
‘Agreed.’ Koron leaned the bike into a shallow curve, the whisper-quiet grav-plates carrying them smoothly along the outskirts of the hive’s central district. ‘We’ll ask G for whatever files he has once we get a signal through the storm. Especially on that big one. That bastard’s going to be a problem if it manages to leave the storm.’
He glanced at the tactical overlay. ‘ETA to the far side of the city?’
Sasha didn’t answer immediately. The map in the corner of his HUD flickered as pre-upheaval schematics were torn apart and reassembled against current sensor data. ‘Looking at roughly a full day to cross the hive,’ she said at last. ‘Then another eight hours to Storvhal. Recommend staying low and slow. Want me to re-engage the cloak?’
‘No.’ Koron shook his head slightly. ‘Most of the heavy fighting is clustered around the spire. We’re, what, fifteen miles out? We shouldn’t run into anyone. Still, keep the defenses hot.’
‘Copy.’ A route chimed green on the minimap, threading through collapsed structures and abandoned roads. Several alternate paths lingered as dim, translucent lines, ready to light up if conditions changed.
Koron eased the bike forward, then glanced back over his shoulder at the jagged breach in the hive’s defensive wall—the cleft he’d slipped through.
‘Think the Orks are still chasing us?’
‘No idea,’ Sasha replied, a long-suffering sigh coloring her tone. ‘They should have been reduced to paste at the speeds they were pulling, but after what we saw? I’m not betting against stupidity with momentum. Let’s just put as much distance between us and them as possible.’
‘That’s fair. Stupidity with momentum is basically an Ork’s diploma.’
‘Please don’t make them sound educated. It encourages them.’
Three hours bled away as Koron threaded the bike through the city’s lower arteries, keeping to shadowed streets and avoiding the wide transit highways that were being hotly contested even now. The smog hung thick and unmoving down here, a permanent twilight that swallowed sound and distorted distance. More than once he accelerated hard to escape roving bands of… things that prowled the depths, their bodies moving with the wrong kind of purpose, but for the moment, the overt forces of Chaos remained absent.
He eventually eased the bike to a stop at the edge of a vast gorge. The canyon split the hive cleanly in two, stretching for miles from rim to rim before vanishing into the distant sprawl of shattered towers. Koron leaned forward slightly and let out an appreciative whistle as he studied the scar carved into the planet itself.
‘Damn. Judging by the profile, I’d say seismic rupture followed by an orbital energy lance.’
‘Most likely,’ Sasha agreed. ‘But the damage pattern does present a unique opportunity.’
A new route option pulsed to life on the display.
Below them, the exposed sewer arteries of the hive-city yawned open into darkness. Massive tunnels gaped in the earth, their edges melted smooth in places, as if the stone had run like wax, while other sections had been torn into jagged, splintered teeth by violent tectonic forces.
Koron stared down into the depths, unimpressed. ‘Okay. Explain why, in the hell, I would ever want to enter a sewer.’
‘Biggest and simplest reason? Way less chance of being shot.’
‘Yes, but, and here's my counterpoint: it’s a hive-city sewer. A hive-city sewer.’
‘A fair concern,’ she conceded. ‘Counter-counterpoint: still less chance of being shot.’
Koron closed his eyes for a moment.
‘…Damn it. Septic systems were always my least favorite repair assignment.’
‘I get it, but if you're alive to complain, you're still alive.’ Sasha said, already shifting focus, ‘Come on, it’s time for a jump.’
The bike rolled back as the plasma thrusters deployed, igniting into brilliant azure light. Anti-grav plates locked in, holding the machine steady as power built through the frame and a thousand overlapping calculations raced through Koron’s mind—trajectory, thrust, mass, margin for error.
‘Hover changeover ready,’ she said, the bike growling beneath Koron as stored energy coiled tight, waiting for release.
‘Drop looks good,’ he replied. ‘Starting run in three…two…one…mark!’
The grav-plates whined. The plasma thrusters roared.
Koron released the brake—and the bike hurled itself out over the canyon’s edge, the city dropping away beneath them.
As the earth fell away and the bike plunged in a whistling descent, neither noticed the warp-storm behind them cinched into a slow spiral, as if something vast had shifted its weight in the dark.
...
The scent lingered in the sewer’s reeking air.
It lay beneath the rot and filth, beneath the layered stink of humanity and decay that had soaked into the underhive over centuries. Subtle, alien, and persistent. The Magus tasted it as much as she smelled it, drawing it in through senses her followers barely understood.
Her children moved carefully through the rubble-choked passages, weapons held ready as they followed the trail. The underhive had become a broken maze; vast stretches of the sewer system collapsed under the slow grind of time, the violence of war above, and the Primus’s deliberate orders of controlled collapse. Entire arteries had been sacrificed, sealed and buried to hide the brood’s presence from prying eyes.
It had worked.
Millions of the faithful lay scattered across the world, unseen and patient. Those who could still pass as human moved quietly among the surface populations, shuffling supplies and equipment toward the hidden nests, feeding the future one crate at a time. The arrival of Imperial and Chaos forces had forced a retreat, however. Neither the Primus nor the Magus had been willing to test the brood against reinforced armies so early in the cycle.
That calculus had shifted in the past week.
The upheaval of the planet’s crust had shattered cities and ruptured supply lines, breaking organized battlefronts into a thousand isolated skirmishes. Forces that once advanced in strength now fought blind and alone, cut off from reinforcement. The Warp-storm overhead had been an even greater gift, strangling long-range communication to a whisper.
Yet the bond between the Magus and her faithful remained unbroken.
That alone would have been enough.
The question gnawed at her thoughts.
Her children could smell it now as well: It was meat and metal: ozone, hot polymer, the clean bite of antiseptic that didn’t belong in a sewer, masked by some manner of cloaking that dulled their other senses. Their eyes found nothing. Their ears heard nothing unusual. Even the broodmind recoiled from it, unable to take purchase.
There was no fear.
No aggression or chemical haze of stimulants or the frantic static of a human mind under stress.
Only quiet.
That unsettled her more than any weapon.
Stranger still was the intruder’s path.
It did not drift toward the supply caches. It did not linger to survey tunnels or mark junctions. It passed through the brood’s territory as though unaware, or uncaring, of it. It moved with steady, unhurried purpose. A ghost, barely traceable, leaving only the faintest echo in the air.
The Primus—her brother in purpose, if not in blood—had ordered patrols to observe from a distance. To watch, not strike. He feared this was a scout, a single probe before a larger incursion, yet even he could not say for certain.
That uncertainty was the only thing restraining the brood.
To strike without understanding risked exposure. To reveal themselves too early would invite annihilation. And so far, the intruder’s path led away from their nests, away from their stockpiles, away from anything vital.
And so the faithful followed.
Eyes narrowed, teeth bared.
Ready for the order.
...
‘What do you think?’ Sasha kept her voice low, even across the neural link, as if volume alone might carry through stone and filth. ‘Genestealers are… famously direct when it comes to intruders. Why are they holding back?’
‘No idea,’ Koron replied. ‘But I’m not interested in figuring it out the hard way. Let’s not waste the time they’re giving us.’
He pushed gently off the sewer wall, gliding forward in near silence. The tunnel around him was a narrow cathedral of decay, the arched stone slick with condensation, pipes ruptured and dangling like exposed veins. He drifted over a mound of twisted metal and shattered ferrocrete, debris left behind by collapses both natural and deliberate. Behind him, the Sentinel drone followed with effortless precision, its gravitic bias field smoothing the terrain into irrelevance.
‘How long until we can get the hell out of these tunnels?’
‘If the repeated collapses are any indication,’ Sasha replied, ‘the cult has been systematically cutting off surface access. Smart. It limits detection, funnels intruders and won't raise any eyebrows considering how decrepit hive-cities are.’ She paused as projections scrolled through her analysis. ‘So, to answer your question: best estimate? Several more hours.’
Koron grimaced. ‘Fantastic.’
‘Though…’ she added.
He shot the little golden ball on his HUD a glance. ‘Go on.’
‘If we reverse their approach vectors and cut through their primary transit lines, we’ll likely emerge close to the core of their operations. I would wager their leadership maintains rapid access to the surface, either for escape or for launching coordinated assaults.’
Koron slowed, one hand brushing the wall to steady himself, the faint wiggle of the bike in its storage state tapping at his kidneys. ‘You mean the heart of the cult,’ he said flatly. ‘As in, where the leader is. The massive, four-armed monster that treats Astartes like popcorn. That location.’
‘Look, I didn’t say it was perfect,’ Sasha replied, her irritation bleeding through. ‘But the alternative is spending several more hours down here, hoping their restraint doesn’t suddenly evaporate.’
Koron shook his head. ‘Several hours. No contest. No offense, but I’m not gambling on a hypothetical exit that may not exist by driving straight through the center of their operations. Especially when they can already track us. We turn toward the core, they’re going to lose their minds.’
Silence followed as Sasha ran simulations, branching outcomes blooming and collapsing in rapid succession.
‘Then,’ she said at last, ‘what about sending the drone ahead? Let it scout the route. If there’s a viable path forward, we’ll know.’
Koron didn’t answer right away.
He drifted up and over the lip of a fractured junction, the tunnel opening into a wider artery riddled with side passages. Darkness yawned in every direction. His sensors pinged movement—hybrid life signs, roughly forty meters out. Always distant. Always pacing him. Watching.
They were tracking him by means he didn’t yet understand.
Not yet.
‘No,’ he said finally. ‘If things go sideways, we’re going to want every gun we have on hand. And besides—’ he glanced back at the drone gliding faithfully behind him, ‘—I like Rover.’
‘Please don’t anthropomorphize the drones,’ Sasha dryly replied. ‘It only makes their eventual destruction more emotionally complicated.’
‘Hey now,’ Koron said, all cheeky grin. ‘Don’t be mean to Rover, she’ll—’
‘You named a girl Rover?’
‘Seemed appropriate.’
‘...I'm going to tell the ladies your child naming privileges have been revoked.’
Koron nearly lost a handhold.
‘That’s not—’ he started, then stopped, heat creeping up his neck. He pushed off into the darkness instead, quietly filing away a note to run a diagnostic on Sasha’s psychological training suite.
In the quiet that followed, a faint echo reached the edge of his sensor range.
It was the raucous, bellowing laughter of the Orks.
...
She sensed them before they truly crossed into the cult’s domain.
The other presence—the quiet one—had moved through her territory like a held breath, barely traceable. Her divine senses slid across it and found nothing to seize, as though it were wrapped in some impossible veil. No psychic echo. No emotional wake. Her mind reached, searched, and returned empty-handed.
That alone had unsettled her.
The Orks?
They were nothing like that.
They announced themselves like a macro-cannon firing in low atmosphere, the shock of their arrival felt twice over: once in the moment of impact, and again as the reality of it spread outward. Only this time, the shell did not strike a distant target.
It struck her home.
They burst through barricades and collapsed choke points, detonating traps meant to slow armored columns. Sentries died where they stood, torn apart in a riot of bullets, blades, crackling energy lances, and—absurdly—howling Squigs flung ahead like living munitions.
Her chosen answered the intrusion as one.
From ducts and crawlspaces, from forgotten maintenance corridors and hidden shafts, the faithful surged into motion, flooding the prepared kill-zones the Primus had shaped with such care. Fortified nests opened fire the instant the Orks thundered into range, overlapping fields of death cutting the darkness apart.
Las-fire, stubber rounds, rockets, grenades, and roaring sheets of flame choked the tunnels. The stink of scorched flesh and charred bone surged outward, briefly overwhelming even the ancient, omnipresent reek of human waste.
The Orks roared in delight and charged straight into it.
Four rokkits struck a reinforced wall almost in unison, tearing it apart in a storm of shattered ferrocrete and twisted metal. Cultists were flung aside, their screams lost beneath the hammering of gunfire as bullets and crackling shokk-rays poured through the breach. Gretchin swarmed along the Orks’ flanks, shrieking as the horde crashed forward, choppas slamming against blades while the greenskins laughed and bled in equal measure.
Nearly two hundred of the brutes had defiled her people’s temple.
They would die for such sacrilege.
...
‘Damn Orks!’
Koron ducked under the jagged edge of a collapsed sewer roof, metal screaming inches above his head as Rover skimmed through after him. The tunnel ahead and behind erupted into lethal light and sound, las-bolts and bullets tearing into ferrocrete, showers of sparks raining down as rounds chased his heels.
His cloak collapsed in a heartbeat as his shield popped in its place, the Sentinel’s shields flaring to life a half second later. Koron slammed a boot into the service door ahead of him, the impact launching it down the corridor in a shriek of torn hinges as he and Rover burst through the opening at full sprint.
His map was full of red.
The cult had already been coiled tight, nerves frayed by his presence, and now, pushed past breaking by the Orks crashing into their lair, it snapped. Hybrids boiled out of the walls in a wave of pale eyes, purple-tinged flesh, and too many teeth, weapons rising as one.
Koron was already moving.
He slipped through the doorway as fire stitched the space he’d occupied a heartbeat before, sprinting into the vast maintenance catacombs branching off the primary sewer lines. Great work tunnels stretched away in every direction, the hidden capillaries of the hive’s arteries.
Behind him, the hybrids charged. Above and below, more surged through access shafts and crawlways, converging with frightening coordination. The map updated in frantic bursts as Koron shoulder-checked another door, vaulted a low fence, then ripped a shelving unit free and sent it crashing down behind him—buying bare seconds.
Again and again they tried to funnel him, driving him toward kill-corridors and dead ends. Sweat slicked the back of his neck as his lungs dragged in hot, rancid air, but he stayed just ahead of the trap—predicting, adjusting, refusing to slow.
Six hybrids were racing for the door he’d marked as his next exit.
Las-bolts scorched past him as he hit it shoulder-first. The metal buckled inward and the first hybrid on the other side never even raised his stubber before Koron was past him, two fingers jabbed into his windpipe, leaving him gasping out a wet wheeze.
Koron stepped through the motion without pause. He bent low, all his weight settling into one augmented leg as the other shot forward, letting him slip under the spray of panicked fire. The stumbling hybrid behind him jerked and folded as his own people gunned him down trying to hit the intruder, purple-black ichor splashing the tunnel wall.
Flowing forward, his metal elbow caught the hybrid's thigh. Bone shattered as the thing screamed.
Before the remaining four could react, Koron never stopped his attack. Grav-plates engaged, carrying his momentum forward as his forward leg braced and pushed. His left hand flared, catching him with gravimetric curvature, skimming up and over them along the wall of the tunnel.
Weapons came up, far too slow to his accelerated perception.
Space folded.
Koron blinked past them, already moving, tossing a small matte-black sphere behind him as he ran.
The reinforcements hit the corridor's entrance just as the pinball struck the deck.
It didn’t explode.
It bounced.
Internal sensors flared, and it pulsed.
Gravity flipped.
Everything not bolted down in a twenty-foot radius slammed into the ceiling for a heartbeat before the device bounced again, smacking a cultist square in the forehead and firing once more. Bodies tore loose of gravity's hold and crashed back to the floor in a chorus of bruises and bloodied faces.
Up, down, then snapped back up again.
The sphere ricocheted along the passage, flipping the vector with every strike, turning the tunnel into a washing machine of flailing bodies, enraged shouts and shattered formations.
Mid-bounce, it halted mid-air, then snapped sideways as Koron caught it in his gravimetric field, yanking it back into his hand, his footsteps echoing alongside Rover’s metallic clank as they fled.
Behind them, forty cultists barely had time to groan before their brothers trampled over them in the charge.
‘You’re doing great, though. Like a violent pinball!’ she said, watching the horde grow ever closer.
‘Non-lethal pinball!’ he replied as he grabbed a low-hanging pipe, kicking his feet forward to slide over a rubble pile. ‘Low delta-g, short cycles, just enough to break formations, not necks.’
‘You just inverted gravity several times in a tunnel full of people.’
‘Hey, they’re alive.’
The author's tale has been misappropriated; report any instances of this story on Amazon.
‘That is technically true, and deeply unkind.’
The run continued, an endless chase of near misses, sparking shields and broken bones as he continued to barely slip through the growing horde.
‘We can’t keep this up!’ Sasha said, her voice tight as data streams stacked and collapsed across Koron’s HUD. Pathways lit and vanished in rapid succession as she tracked converging threats. ‘Genestealer cults don’t operate in dozens. They operate in thousands. Sometimes millions. And this one’s entrenched—old, organized. We need an exit now.'
‘Suggestions?!’ Koron barked back.
He caught a rusted support beam in both hands and swung, boots scraping sparks as he vaulted the guard rail. The floor vanished beneath him. He dropped thirty meters into darkness, slamming down onto the corrugated deck of a maintenance platform and rolling through the impact as Rover hit beside him without breaking stride. Above, the pursuing hybrids skidded to a halt, snarling as their path collapsed.
‘Other than my original proposal?’
‘Yes!’
A fraction of a second passed. Too long.
‘…None you would like better than the first.’
Koron swore under his breath and turned toward the maze of tunnels leading deeper—toward the pulsing heart of the cult itself. Every instinct screamed against it.
He ran anyway.
Because sometimes survival wasn’t about finding the safest path.
It was about choosing the one your enemy thought you’d never take.
...
She felt every failure.
Not as numbers or reports, but as pressure along the shared lattice of the broodmind—sharp flares of pain, panic, and disorientation as her faithful were battered aside again and again. Bones broke. Organs ruptured. Minds screamed and went abruptly silent, not with death, but with shock.
And yet…
None of them died from the intruder.
That realization crept through her thoughts like a chill.
The ghost moved faster than prediction, slipping through kill-nets before they could fully close, turning traps into chaos and ambushes into stumbling collisions. Her children fell, were crushed, flung, broken against walls and ceilings by forces they did not understand.
But they lived. Mostly.
A mind winked out here and there. Not by the ghost’s hand, but by the faithful’s panicked fire.
He was not culling them.
He was passing through.
Confusion rippled through the broodmind, followed swiftly by something far more dangerous.
Intent.
The ghost’s path shifted.
She felt it immediately—not through scent or sound, but through alignment, through the sudden tightening of probability itself. It wasn’t seeking escape anymore; it threaded the margins with purpose.
He had turned inward.
Toward the Patriarch.
Toward the heart.
Alarm surged through her consciousness, sharp and incandescent. This was no scout. No fleeing prey. Whatever walked her tunnels moved with purpose now, its vector narrowing with frightening speed.
The Orks were still crashing through her outer sanctums, a howling storm of violence and desecration, but they no longer mattered.
Not like this did.
Her will snapped outward, overriding hesitation, overriding caution.
Unleash them.
The command tore through the broodmind like a scream.
From deep chambers and sealed vaults, the Purestrains stirred. Vicious, perfect things coiled in the dark. They would fall upon the Orks like razors, carving the infestation out of her domain.
After that…
They would hunt the ghost.
Run it down.
Tear the quiet thing apart and learn, at last, why it had chosen mercy over slaughter.
Why it had dared to walk unchallenged toward her god.
...
The Orks laughed.
They laughed as bullets tore through green flesh and sent boyz spinning into walls, limbs flying, blood splashing hot and bright across rusted metal. They laughed as pain burned and bones cracked, because pain meant the fight was good.
They died, but they krumped back just as hard—choppas hacking, fists smashing, boots stomping cultists into paste. Every blow landed with a wet, satisfying thud, every scream another reason to swing harder.
They cheered as fire rolled through the tunnels.
Flames clung to skin and armor alike, promethium washing over them in roaring sheets. Boyz burned and kept charging, teeth bared in wide, feral grins, voices rising in wild, barking laughter as they and their enemies were reduced to smoke and screaming shapes.
Burnin’ meant fun.
Burnin’ meant someone was doin’ it right.
They roared louder.
The tunnels shook with it—echoing, booming, multiplying—until even the walls seemed to beat with them.
The laughter paused.
The walls moved.
Stone rippled.
Metal flexed.
The ceiling dropped.
It hadn’t collapsed, and it wasn’t blown apart—just opened, like something had bitten it.
Passages clenched tight, corridors narrowing like jaws snapping shut. Floors bucked and twisted beneath stomping boots. Walls split open and birthed pale, fast things with too many claws and not enough noise.
Then the Orks roared louder than before.
“HAHA! NOW IT’S A PROPAH FIGHT!”
They surged forward into the moving dark, swinging and firing and burning, laughing as the world itself tried to kill them—because if the walls were fightin’ back?
Then it meant they were doin’ somethin’ right.
...
The Purestrains hit like knives thrown by a god.
They poured from vents and ruptured walls, pale bodies unfolding mid-leap, claws already swinging. No war cries. No laughter. Just motion—fast enough to blur, sharp enough to end lives in a breath.
The first Ork never saw it.
A Purestrain slammed into his chest, momentum carrying them both backward as talons punched clean through muscle and rib. The Ork laughed even as he died, blood bubbling from his mouth while his choppa tore half the creature’s shoulder away. Both hit the floor in a tangle of limbs and gore.
The tunnels vanished into violence.
Orks fired wildly, bullets chewing metal and flesh alike as Purestrains ran along walls and ceilings, bodies twisting, claws striking from impossible angles. One landed on an Ork’s back, jaws closing around the base of his skull. The Ork howled in rage and smashed himself backward into the wall, pulping the creature with his own weight.
Another Purestrain leapt through fire, skin blistering black as it drove both claws into an Ork’s throat. Promethium washed over them. The creature burned and did not slow. The Ork burned and gripped harder, grabbing it in a crushing embrace and tearing it apart as both collapsed into the flames.
Choppas rose and fell.
Claws answered.
Teeth snapped. Bones cracked as organs fell out in steaming piles of wet meat. Blood, green and purple-black, slicked the floors until footing became guesswork and momentum alone decided who stayed standing.
Purestrains flowed like water, striking, vanishing, reappearing behind the Orks in blinding arcs of speed. Orks responded with raw mass and refusal, swinging through wounds that would have killed anything else, dragging enemies down simply by being heavier and angrier.
A Purestrain severed an arm.
The Ork who had lost it used it to beat the genestealer to death.
An Ork was disemboweled and kept fighting, biting a genestealer’s shoulder until a second set of claws finally opened his throat.
The broodmind howled in savage focus.
The Waaagh!!! roared in ecstatic fury.
The tunnels rang with it—screams, roars, tearing metal, grinding bone. Direction stopped meaning anything. Up, down, front, rear—everything smeared into the same violent geometry.
Just bodies colliding in the dark, the walls painted fresh with every heartbeat.
Neither side gave ground.
Neither side knew how.
And somewhere deeper in the hive, something vast and ancient stirred—aware that the feral noise was buying time.
Time, paid for in blood.
...
The Patriarch stirred.
It felt the ghost long before it should have been possible—felt it as a tightening in the broodmind, a narrowing vector of approach that cut straight through layered defenses with impossible speed. The thing was coming fast. Far too fast.
Guard lines collapsed in its wake; they weren’t broken so much as ignored, slipped past like scenery.
Its children knew the ghost was coming. They felt it in the shared consciousness, positioned themselves with practiced precision, kill-nets snapping shut a heartbeat too late as the intruder slipped through gaps that should not have existed.
It struck, vanished, struck again, each impact followed by empty air.
The Patriarch tasted the aftermath through its brood: shattered bones, ruptured organs, crushed limbs. Pain flared and subsided. Minds reeled. Bodies fell.
But so few went dark, and even then, those were from its other children.
The ghost slid through them, leaving injury and disarray behind like turbulence in water, but it didn’t kill. It didn’t harvest. It only stopped.
That was wrong.
Humans killed.
Humans panicked.
Humans burned everything they touched in terror or rage. Even the clever ones culled, thinned, ended threats when given the chance.
This one did not.
The Patriarch’s certainty wavered, a deep and ancient instinct finally stirred by unease. The ghost was not fleeing now. Its trajectory was focused, intent sharpened to a blade edge.
It was coming for it.
The Patriarch drew its massive form upright within its sanctum, muscles coiling beneath pallid flesh, psychic pressure swelling outward as it prepared to meet the impossible intruder, its psychic call summoning its children to its side.
Whatever walked its tunnels was not prey.
Not yet.
And not like any human that had ever come before.
...
The chamber opened around Koron like a cathedral grown rather than built. Two hundred meters across, a hundred high, threaded with machinery like rusted intestines.
Organic arches of stone and chitin fused overhead, ribbed and wet with condensation. Veins of bioluminescent growth pulsed along the walls, painting everything in sickly violet and bone-white. The air clung to him, humid and metallic with musk and blood.
The Patriarch waited at the center.
It stood atop a throne of fused wreckage and calcified flesh, immense in its stillness. Four arms spread. Sword length claws flexed.
Sixty Purestrains uncurled from shadows and alcoves, pale bodies dropping low, talons rasping stone as they formed a living guardrail around their lord, leaving a small open space at the center, ringed by the forest of metal.
This was the moment.
The Patriarch stared.
It expected something. A flinch. A psychic scream. A ritual. A challenge.
Koron gave it nothing.
He looked at the towering alien god, at the coiled Purestrains, at the slick floor, at the kill geometry already snapping into place.
Sasha highlighted the door on the far side of the room through a forest of machinery, gangways and support beams half-swallowed by organic growth and layered secretion.
Koron saw the problem immediately. It was entombed under a tumor of chitin and flesh, fused shut by a living siege-foam. Seconds to clear. Maybe more. And if the mechanisms inside had seized, seconds became a death sentence.
‘You could shear through it.’ she said, sensors locked on the genestealers.
‘And then they’d have a clean hole to follow me through.’ He replied, metal fingers flexing.
‘Better them in a tight space than swarmed over and eaten?’
He shrugged. ‘Blind jump into it?’ Koron asked, eyes never leaving the ring of claws.
Sasha’s projected lips pinched tight. ‘Not with these schematics. The maps are off by up to twenty meters. Imperial architecture doesn’t make small mistakes. I wouldn't risk a blink on bad data.’
Koron’s gaze flicked up to the rat’s nest of pipes, ducts, and dripping filth webbed across the ceiling. ‘Anything up there we can scrape into?’
‘Yes,’ Sasha said. ‘But nothing those claws won’t shred in seconds. That door is blast-sealed. Straight shot up to the surface. Best option.’
Koron nodded once. Barely a twitch. ‘Alright. Ready?’
‘No,’ Sasha replied. Then, softer: ‘Do it anyway.’
A heartbeat before he moved, Koron felt it. The faintest vibration in the earth above. Dust shifted. Grit and metal particulates sprinkled down over the Patriarch’s pallid crown. Under it all, a distant drumming began to bleed into the chamber, too low to be sound and too steady to be coincidence.
He didn’t have time to make it a problem.
He had to survive these monsters first.
Koron broke left and back, away from the ring, into the forest of pipes, machines, and wet stone.
Not toward the door. He chose the line that looked wrong, because the line that looked right was where sixty bodies were already waiting with razored talons and gleaming teeth.
The Patriarch lunged.
The chamber erupted into motion behind it, Purestrains pouring forward in a tidal rush of clicking talons and chittering chitin, tongues lolling, saliva spattering stone. Koron didn’t look back. He didn’t have to. His sensors painted the chase in clean numbers and cruel angles.
Distance.
Closing rate.
Teeth.
His boots hit the slick floor and bit for traction. He took a corner hard enough that his shoulder skimmed wet stone. Condensation burst under his palm as he shoved off, using the wall as a runner’s block.
The Patriarch’s steps hit the ground like a dropped engine, every footfall punching vibration up through Koron’s legs, a thought flicking across his mind at the sensation.
Nothing that size should move that fast.
He cut around a thick metal support pillar, four feet of reinforced steel, corroded but stubborn, a relic that had held up this ceiling for centuries, one of many that lined the chamber.
The Purestrains flowed around it.
The Patriarch didn’t bother.
It hit the pillar and went through. Steel tore with a shriek. Rivets snapped like bones. The massive alien roared, and Koron’s helm dampened the bellow automatically as shrapnel sparked across the floor behind him.
He ran harder.
Broken grating. Jagged flooring. Slime-slick patches that wanted his feet to go out from under him. He didn’t hesitate. He didn’t pick his way. He took the line he’d already chosen, stepping on the only solid points like the world was a schematic only he could read.
‘Genestealer speed calculation complete,’ Sasha whispered. ‘They’re fast. They won’t reach you for another twenty yards. Blink vector ready on your mark.’
Koron counted three long strides.
He spun mid-step, moving before the turn finished, eyes cutting past the charging monsters to the sealed hatch beyond them.
The thin promise of escape.
Space folded.
Koron dove into it.
...
Above, on the broken lip of Megaborealis, Sergeant Erden stared across the canyon and tried, very carefully, not to swear.
The chasm split the hive like a wound torn open by a careless god. Seven kilometers of empty air yawned between the far edges, its depths lost in haze and drifting debris. Broken gantries and collapsed roadways jutted out over nothing, twisted and useless. There were no bridges or spans—only a gap that mocked the idea of crossing.
On the far side, the Orks had built scaffolding out of rubble and wreckage. A crooked ladder-city clung to the canyon wall. It climbed the canyon side, where the gretchin tried to climb after their brutish masters.
Altani tilted his helm, auspex sweeping the void again. “Seven kilometers,” he said at last. “Confirmed.”
“How the hell did they get down there so fast?” Qulan added.
Erden exhaled slowly. “My guess would be they just drove off the edge.”
Altani snorted. “Crazy bastards.”
They fell silent, watching dust drift lazily upward from the abyss as distant gunfire echoed from somewhere far below. The Orks had charged straight through their forward camp hours ago, howling and laughing as they went.
Tactics never arrived. Speed did.
Along with violence and enthusiasm.
And now they were on the other side of an impossible gap.
“They didn’t slow,” Erden said. “Didn’t bunch up. Didn’t hesitate.”
“Orks don’t do hesitation.” Qulan replied.
“They do when gravity gets a vote,” Erden said.
Altani was about to respond when the auspex screamed.
All three warriors turned as one.
The storm above split open—not with lightning, but with impact.
Something red punched down through the clouds trailing fire, wings snapping wide an instant before it struck. The ground detonated, shockwaves rippling outward as stone and ferrocrete were pulverized beneath the impact.
The thing rose from the crater.
Scarlet skin, stretched tight over corded muscle.
Brass and bronze fused to flesh.
Wings vast and furious, beating against the air like they wanted to tear the sky apart.
It roared, a sound that scraped across the soul rather than the ears, and drove both massive fists into the ground.
The earth gave way.
Stone screamed as it was ripped aside, bedrock torn free like loose soil. The creature began to dig—rending, clawing, hurling shattered rock aside with animal fury, carving a straight, violent path downward toward the underhive.
Erden felt his hearts stutter.
“…No.” Altani breathed.
Qulan went still, his helmed gaze slightly turning towards Erden. “Sergeant?”
Erden nodded once, slowly. His voice, when it came, was flat. Certain. All of them knew the stories, had seen what the pict-recorders had captured.
“Angron.”
The name sat in the air like a death sentence.
The Red Angel plunged deeper, wings folding tight as it vanished into the earth, every movement driven by incandescent rage. The canyon echoed with the sound of breaking stone, a thunderous, relentless descent.
Erden opened a vox-channel, boosting it to the max he could, eyes never leaving the rising plume of dust.
“All units. Priority alert. Primarch-level threat confirmed.” He swallowed, trying to get around the sudden dryness at the back of his throat.
“Angron is here. He is burrowing toward the underhive.”
A pause.
“If you hear something tearing its way up from below—”
The ground shuddered again.
“—Make him bleed before you die.”
The storm swallowed the rest of his words as the planet itself began to scream.
...
Koron came out of the blink already moving.
He hit the far side of the chamber without losing stride, boots biting slick stone as he snapped to a stop at the blast-sealed door.
It bulged out of the wall, Imperial adamantine half-buried beneath glistening alien mucus and fibrous growth. Veins pulsed sluggishly through it, clinging, sealing, claiming.
Behind him, Purestrains shrieked.
Koron didn’t waste a second turning to look.
He lifted both hands.
The gravimetric shear bloomed with a thin, near-invisible ripple, like air deciding it hated itself.
No flash. No heat. No drama.
The growth simply… stopped being one thing.
Mucus, chitin, sinew. The moment the shear touched it, it lost its relationship with itself. Bonds severed with clinical indifference. The layer sloughed away in wet, obscene sheets, collapsing to the floor in twitching piles as the ancient adamantine beneath was laid bare.
He hit the activation switch, which the hatch answered with an old, offended groan. Seals began to disengage. Teeth ground. Something deep inside the door remembered it was built to outlive empires.
The Purestrains closed.
Talons screeched across stone, furrowing it, throwing sparks. The air churned with their breath and spit. Koron kept his eyes on the hatch, on the widening seam, on the mechanical delay that felt like a timing cycle designed by sadists.
Then the ceiling in the center of the room ceased to exist.
A thunderous detonation turned stone, chitin, and centuries of careful construction into a spray of ruin as something crimson and furious punched through from above. The impact cratered the chamber. Shockwaves slammed into Koron’s back like a giant hand, slamming him into the door, flinging Purestrains like broken dolls.
Angron landed in the Patriarch’s lair.
Red skin stretched over corded muscle. Black brass fused to flesh. Wings snapped wide, shedding debris as he straightened to his full, impossible height.
He roared.
The sound didn’t choose a target.
It condemned the whole room.
The Purestrains faltered mid-lunge, their perfect swarm timing shredding into chaos. Some stumbled. Some turned. Some froze as if the thread pulling them had been cut.
Angron attacked without hesitation.
He seized the nearest Purestrain in one massive hand and squeezed. Blood and organs erupted from its mouth in a choking fountain. Another launched itself at his throat. Angron caught it mid-leap, bit its head off, and spat the skull through a knot of its kin hard enough to splinter bodies.
Claws raked his armor. He laughed.
The Patriarch struck, four arms lashing out with killing intent, its bulk surging forward like a storm given bones.
Angron hit it like a meteor.
Stone exploded. Flesh ruptured. The ancient creature was driven back, throne shattering beneath it as Angron piled in with fists and teeth and the kind of hatred that didn’t need strategy. Purestrains swarmed him, carving chunks from him, only to be crushed, torn apart, or grabbed by the limbs and used to beat other Purestrains into paste.
Koron didn’t stay to watch.
The hatch blew open with a concussive bark of pressure and metal. Koron dove through the gap as the chamber behind him dissolved into screams, collapsing coordination, and the wet percussion of something that had never learned restraint being handed permission.
The door slammed shut behind him.
‘Is it tracking me?’ he asked, hands trembling even as he hauled himself up the escape ladder. The access tube ran straight up from the sanctum wall, a service artery meant for men, not gods.
Sasha had no words of comfort to offer.
For half a heartbeat, even through meters of adamantine, Angron’s roars chased Koron up the tunnel.
It wasn’t the frothing roar of something mindless. It had a shape to it, a low, rolling rumble that turned the ladder rungs into tuning forks under his hands and made the air press against his ribs. The sound carried through the bones of the hive like a joke being told by a god.
Koron climbed, desperate to outrun the battle.
Half throwing himself upward, boots and palms touching each rung only long enough to steal momentum. His gauntlets squealed against wet metal. The tunnel stank of condensation, mold, and old blood, a stew his filters could blunt but not erase.
He made it twenty feet before the wall under him split with a sound like a ship hull tearing. Ferrocrete spiderwebbed, plaster and grit bursting loose in a hail that peppered his armor. The tunnel shuddered as if the entire structure had flinched.
Another blow spread the cracks.
Koron was slammed sideways into the wall hard enough to knock the breath out of him. For a fraction of a second the pressure spiked, intimate and crushing as his plates tried to compensate.
A shadow moved in the breach below.
Clawed fingernails came through the shaft walls first. Too big. Nothing human about them.
Angron’s fingers had closed around the tunnel’s width.
And pulled.
The ladder jolted. The whole tunnel lurched like a lever being wrenched free. Koron’s body pitched, his grip screaming as the rungs tried to tear out from under him. The structure groaned, rebar snapping somewhere close enough that he felt it in his teeth.
Angron ripped the entire escape tube out of the wall in one violent motion.
It came free as a single, brutal piece of hive anatomy, metal and ferrocrete and conduit, still intact enough to remain a weapon.
Koron had just enough time to register the absurdity of it. The tunnel—his exit—was now in Angron’s fist.
The tube whipped through the air, a club the size of a bridge-span.
Centrifugal force slammed into Koron’s limbs and spine. His stomach tried to climb into his throat. His fingers lost friction, lost meaning, lost the argument with physics.
The tube’s open mouth yawned above him, back into the Patriarch’s cathedral as he was flung out of the tunnel like a stone from a sling.
For a blink he was weightless, tumbling, the chamber below him blurring into mucous sheen and chitin ridges and the pale flash of moving bodies.
His suit screamed warnings. Stabilizers fired. His vision stuttered.
Koron reacted on instinct.
His wrist snapped out. The grapple line barked from his forearm and shot across the chamber towards the nearest pillar.
The magnetic disc bit into the edge of the nearest pillar, only to slide off the organic growth.
Drill spikes deployed and burrowed into the meat, hooking where the disc had failed. The line went taut and yanked him sideways so hard his shoulder joints filed for divorce.
He swung in a wide arc, boots skimming the wall, and the sudden change in direction nearly tore his arms out of their sockets. Dust slapped into his visor in gray sheets. He clenched his jaw until it hurt and rode the momentum, letting it slingshot him away from the wall.
Behind him, the tunnel hit home on the Patriarch's right side.
Metal and stone met chitin and muscle with a wet, catastrophic crunch. The Patriarch’s brood exploded outward, Purestrains flung aside like scraps of paper in a gale. One of them cartwheeled across the chamber and came apart when it hit the wall. Blood sprayed in a fan. Chitin fragments clicked and bounced like thrown knives.
The Patriarch itself took the blow along its side, not slain, but moved—shoved by impossible mass, staggered, a beast struck by a falling building.
Angron didn’t stop to admire the damage.
He held the torn tunnel in his fist like it weighed nothing and laughed, low and delighted, as if the hive had finally offered him a toy worth playing with.
Koron rolled to a stop and came up into a crouch, lungs burning, one hand still hooked around the returning grapple line as it reeled back into his forearm with a ratcheting whine. Dust clung to his visor in greasy sheets, turning the chamber into a smear of gray and motion.
He looked up through it.
The Patriarch was still there.
Crouched low amid the wreckage, one spinal fin chipped, plates cracked along its side where the tunnel had struck. It should have been a corpse. Instead it was a coiled spring made of hatred, its alien features pulled tight with fury that felt almost… personal. Around it, its children shifted and hissed, Purestrains pressing close in a protective ring, their attention split between their wounded monarch and the towering intruder who had dared to turn their sanctum into a playground.
Angron’s laughter rolled across the chamber.
It was the sound of broken bones settling and rusted metal grinding under weight. It vibrated in the floor, in Koron’s teeth, in the mucus-strung walls as if the hive itself was being mocked.
Angron reached to his left hip and drew the long blade free with one hand.
The weapon caught the weak light and returned it as a deep, hungry red. The air around it seemed to tighten. Moisture beaded and trembled on the walls. Koron’s suit registered a spike it didn’t have a neat label for.
Angron drove the blade up into the roof.
The impact rang like a struck bell. The chamber shuddered.
Scarlet energy spiderwebbed outward from the point of contact, branching cracks of light that raced into the torn hole he’d carved down into this place. Wherever those lines touched, the hive didn’t simply fracture. It unmade. Ferrocrete softened into ash. Rebar blackened and flaked away. The Warp devoured matter with the indifferent appetite of fire.
The breach above began to collapse.
Chunks fell inward, trailing dust. The ceiling folded in on itself like a mouth closing. Seconds later the opening Angron had burrowed through was gone, sealed behind a ragged scar of scorched stone and twisted metal.
Koron stared, eyes wide, throat dry.
He hadn’t expected intellect.
They widened further when Angron casually tossed the blade aside.
It clattered to the floor and skidded through gore and rubble to rest near the room's edge, its red shimmer fading as if it had never been there.
Angron unbuckled his belt, letting the massive chainaxe on it fall like dead weight. Metal hit stone with a heavy, ugly clang. The sound echoed in the sanctum like a verdict.
Then Angron curled his fingers.
Flexed them once, slow, testing tendons like a man warming up before a bout.
He raised his hands.
Open-palmed. Loose. Almost relaxed.
The fanged maw split as his lips peeled back into a smile that held no mercy.
It wasn’t a berserker’s grin.
It was the smile of someone who’d just decided this was going to be fun.

