This is the fifth book in Wilson's Adversary Cycle, updated by the author and available for the first time in trade paperback, and released in preparation for the grand climax of the Repairman Jack cycle. Poised and waiting for the moment he can unleash an ancient wave of horror that will extinguish humanity, the son of clone Jim Hanley, Jonah, poses as a graduate student in a small southern town to hide his venomous vampiric identity.