Possession by a demon cost Jonah Walker his faith, his humanity, and his wife. Once a righteous missionary, he endures immortality with nothing but a body for battle and a bent for retribution. His last devastating fight left him wounded beyond healing, and his only chance to redeem his soul lies with a fallen woman. Thrust into an underworld of shadows and sin, Nim Hamlin can’t believe her wanton ways enthralled a demon–and a damned saint. But the touch of this good man’s hand holds an unholy allure–and she’s never been any good at resisting temptation. As darkness gathers in the sweltering Chicago summer, Jonah and Nim must conquer the demons of their past to face even fiercer monsters. But first they must put aside their doubts and let their passion for each other burn through the shadows to ignite a furious power.