But when Marcus, his old demonic rival, returns from exile to attack unexpectedly, Thorn finds power ripped from his grasp. Wounded, desperate, and abandoned by his allies, Thorn is forced to ask himself questions-forbidden questions about demonkind's place in the universe. Questions that threaten to undermine everything Thorn and his fellow demons have believed for millennia. And in his search for answers, he stumbles upon the tip of an earth-shattering conspiracy that reaches from the shimmering spires of Heaven down to the deepest bowels of Hell. Thorn's journey will set him on a collision course with God, with Satan, with vengeful angels and murderous humans trying to destroy Thorn and harm those he loves. But Thorn is a vile, wicked demon who has committed unspeakably evil acts. He could never truly love someone. He could never become good. Could he?