The narrative follows Eva Forge, a Warrior Paladin of the fading Cult of Morgan, who begins her journey guarding her Elder, Fratriarch Barnabas, on a mission to retrieve the Amonite Scholar girl Cassandra from the Library Desolate. Immediately following the retrieval, Barnabas is kidnapped during an ambush by supernatural "coldmen," forcing Eva to investigate a rapidly escalating conspiracy involving the ruling Cult of Alexander, the Healer. Eva soon discovers that the Godking Alexander has declared the Morgan Cult apostate, murdered its Elders, and is systematically using the ancient, powerful Ruin of Ash to suppress and consume all new divinity. Teaming up with Cassandra, who accepts the mantle of the Champion of Amon, Eva travels beneath the floating city to Amon's submerged prison, where she releases the bound god, inciting a city-wide catastrophe. This action culminates in a massive, destructive battle between the newly freed Amon and the armored Godking Alexander above the city. Ultimately, the fight, amplified by the city’s arcane impellor engines, results in the mutual destruction of both deities and the devastation of Ash, leaving Eva to confront the ruined remnants of her world.