Scorched

Welcome to the Castle. The price of admission is your soul.
Ex-detective Macmillan always had a taste for bad girls, but his last lover really took the cake-and his humanity. Now half-demon, Mac's lost his friends, his family and his job.
Constance, a vampire trapped in the supernatural Castle prison, needs his help. Her son has been kidnapped, so suddenly Mac has a case to work-one that embroils him with a mad sorcerer, an even madder city council, and a winged love god. The trail leads deep into the supernatural prison, and Mac soon learns that cracking the case will cost him his last scrap of humanity.Fiery, vulnerable Constance will do anything for those she loves, including Mac. He'll be damned if he turns his back on her... and a demon forever if he doesn't.Second edition. Previously published in 2009 by Signet Eclipse.