It's good to be the Queen... Having ascended the throne of Hell, Madison Wescott is finally able to breathe a sigh of relief. Though she has embraced her demonic nature, she has ensured the safety of everyone she loves. With both Micah and Nix at her side, she wields more power than she could have ever imagined. But not even the throne is safe when you rule in Hell. In the wake of a failed assassination attempt, Madison learns about a realm of the damned older than Hell itself. A fierce and powerful incubus vows to escape his imprisonment there - and his efforts are weakening the bonds that hold him and countless other monsters at bay. With no plan and nowhere else to turn, Madison contacts an unlikely source for help. But whose side is he really on? Will he help preserve her reign, or bring about Hell's downfall? Choose your partnerships carefully...