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Felix Gomez isn't your ordinary detective.  He's a vampire. His vampire 'id' battles with his human 'ego' to maintain some sense self and what he clings to with his human portion, he tries to do what's morally right. He's currently charged with uncovering who is behind the creation of a horde of zombies in Colorado and put a stop to it. Not an easy task when he has to ward of the zombies when he gets close. Gomez can't turn them - they're zombies! - and they have numbers on their side. The task isn't made any easier when Felix picks up a teenage psychic along the way, and she's begging for Felix to 'turn' her. I have a physical copy of this book and nowhere on the cover, back cover, or series title page does it indicate that this is the fourth book in a series.  In fact, in bold letters on the back cover it reads: "Vampires versus Zombies, Round One..." which I (errantly) assumed indicated it was the first book. Fortunat...