The second book in USA Today bestselling author Nicholas Sansbury Smith's propulsive post-apocalyptic series about one man's mission to save the world. The dust from Dr. Kate Lovato's bioweapon has settled. Projections put death counts in the billions. Her weapon was supposed to be the endgame, but it turned a small percentage of those infected with the Hemorrhage Virus into something even worse. Survivors call them Variants...