Guilty Pleasures
Laurell K. Hamilton
 In Guilty Pleasures, Anita is blackmailed by Nikolaos, the vampire master of the city, into investigating a series of vampire murders. During the course of this investigation, Anita begins her relationship with Jean-Claude, another master vampire, and receives two of the four marks necessary to make her Jean-Claude's "human servant." Ultimately, Anita identifies the murderer, but by that point has sufficiently antagonized Nikolaos and her underlings that she is forced to confront them. Ultimately, with help from Jean-Claude and Edward, a human associate who specializes in assassinating supernatural targets, Anita kills Nikolaos and many of her followers, making Jean-Claude master of the city.