Chloe's single hope for setting the world right again—and bringing Horace back to life—is to time travel to an ancient civilization to find an earlier version of Horace. Then somehow she must convince him to kill his brother. And do it before his brother alters the timeline and ruins everything. Kaitlyn begs to go with Chloe so Kaitlyn's unborn baby won't be erased when the timeline is reset. But Chloe can't risk losing her again in the past. She must go alone.
But there's one catch: her only way back is to rely on Satarel, the very demon who moved through heaven and hell to destroy her before. Should she trust him? Few options remain but she's got to get out of there. The terrifying place her world's become is too awful to live in. But can she risk everything and trust a demon, her former enemy, to get her back to Horace?