Hunting Evil — Carol Lynne

Eight young girls have been raped and mutilated in San Diego. Vampire and Special Detective Vincent Milano has been put in charge of finding a shape-shifting psychopath, Armand Dubois, before he finds his ninth victim. The last thing he needs is to be ordered by the Bureau of Vampire Affairs to work with a woman on the case, especially when that woman turns out to be Armand's daughter and first victim.

As lover to the Rogue Hunters, an elite vampire military unit, Lauren Davis has witnessed the strength and stamina vampires bring to their work and their bed. She knows it's her responsibility to stop her father before he can exact his revenge on yet another young girl, but working with Detective Vincent proves more than she bargained for. Drawn to the detective, it isn't until their first night together that she realizes why -- in order to defeat her father, she needs Vince to turn her. Getting him to do it is the hard part, convincing him to accept three other men into his bed, nearly impossible.