Assassin Thessa has spent her whole life within the boundaries of the order of Aeito. She eats, prays, and kills criminals for the Goddess but struggles under the weight of her role. Then, out of nowhere, the last magician in the world emerges from hiding and throws her fragile world out of balance. Tossed around by the political plots of those around her, Thessa struggles to learn who around her to trust while avoiding the gallows, which nip at her heels.