Unholy Penance by Roberta Ideus

[Unholy  Penance]Evan Cain is a writer—and a vampire. But he has a darker secret, and an even darker mission. When young girls start turning up dead and drained of their blood in Carson Grove, Investigator Kaci Robinson is the only one who begins to suspect that he’s not who or what he pretends to be. Even five hundred years of immortality hasn’t prepared him for what that means. The boundaries between past and present blur as Evan struggles to keep a centuries-old promise at the expense of losing the woman he loves and has loved.

Order Info: ISBN 142417029X, PublishAmerica, 2007