A mind unravels. A devil ascends. A reckoning begins. FBI Agent Gavin Gregory once hunted killers. Now he’s hunting demons. Drawn into a desert cult of blood rituals and possession, Gavin faces Fry, a monstrous puppet master haunting his dreams. His mind is fracturing, his family is in dangerâ€"and the devils won’t stop dancing until he breaks. Will he survive the final dance?