For years, High Seer Aurienne has lived with a single haunting truth-her visions will not save her people from the prophesied apocalyptic war that's always haunted her nightmares. That all changes the day blacksmith Theo saves her life. She foresees Theo's destiny to gather the continent's five warring nations to stand against the invading forces. Suffering the soul-rending consequences of spirit necromancy, Aurienne finds herself fighting to survive a deadly web of assassination attempts, mind-shattering visions, and ruinous betrayal.

Theo cannot refuse when Aurienne asks for his help to save their people. He travels the length of the continent facing timeworn superstitions coming to life as he asks neighboring nations to join their cause. Refusing to let down the woman he's falling in love with-even though the fates whisper she will never love him back-he assembles an army of rebels fighting to retain their humanity as the corrupted magic of the land transforms them into the monsters of legend.

Saving the world does not come without cost. Standing against the conquering emperor, backed by his bloodthirsty goddess and moon-cursed army, Aurienne and Theo must decide whether to unleash forces more monstrous than the enemy they're fighting against.