The city is in a panic. In the still of the night, a vicious killer is leaving a trail of mutilated bodies drained of blood. A chilling M.O. that puts ex-vampire hunter Regan Delaney on the case, her gun clip packed with silver bullets, her instincts edgy. But the victims are both human and Undead, and the clues are as confusing as the vampire who may be her best ally—she hopes. Master of the City, Joaquin Santiago radiates supernatural power like heat from a blast furnace, but he's never met a creature like Regan Delaney. She intrigues him, fires his hunger, and unleashes his desire, but before he can enter her world, or she his, they must confront a vicious, elusive killer who is an enemy even to his own.