A deeper grave : [a Shades of death novel]
(Book)

"Serial-killer hunter Nick Shade built his legendary career chasing monsters--sadistic criminals with a gruesome thirst for death. When he rescued Montgomery detective Bobbie Gentry from horrific captivity and helped her reclaim her life, he didn't intend to be a hero. Or a target. But now a copycat murderer haunts him, and reuniting with Bobbie is his best chance at neutralizing the threat. Bobbie can't forget the nightmares of her trauma--or the man who saved her. Working with Nick to outmaneuver the person behind a deadly vendetta feeds her hope that there's more to her world than ghosts and destruction. Maybe joining Nick's search for a killer is about gratitude. Maybe it's nothing more than cold revenge. But the only way they can protect themselves is to trust each other"--(Cover).