One man stood between them and us. U.S. Marshal Jameson Arkeley - the country's foremost authority on vampires - taught police investigator and vampire fighter Laura Caxton everything she knows about monsters. After a bloody war visited upon Gettysburg by an army of vampires, Arkeley gave up his own life to save others. Except he didn't exactly die . . .
Arkeley accepted the curse and is now a vampire himself. What's worse, he's the savviest vampire ever - he knows all the tricks better than anyone. Caxton is now faced with the task of destroying him. But Arkeley knows all her tactics too; after all, he taught them to her. Caxton realizes she must finish Arkeley before he succeeds in his quest to exterminate his own family, one member at a time. But even more important, she has to prevent him from becoming a beast exponentially more dangerous - a Vampire Zero.