The demons have one rule: The Reigns' rule is final.In a world of humanoid demons, Destiny has decided to bring three unlikely people together in order to stop the original demons from taking control of the world again. Cade Llywelyn, the gatekeeper, Cassia Giannopoulos, one of three reigns controlling the demon society, and Lissa Vienne, one of the few remaining Nightmare Demons, together will either save the world or destroy it. After her parents were murdered by a demon, Lissa has spent the last five years killing fellow demons who have taken demon and human lives. Now she is told she must give up her job as a rogue demon slayer to save the demon court from witches. But if she doesn't stop the witches, the only thing capable of controlling the demons will be destroyed. Will Cade and Lissa be able to stop the Bellatrix witches before they destroy the demon court?