FBI Special Agent Patrick Bowers has matched wits with some of the most violent serial killers in history—and one of them has never forgiven him....   Patrick Bowers has pursued the nation’s fiercest serial killers—and now one elusive foe is back for revenge. Settling into a new post at the FBI academy, Patrick and his fiancée, Lien-hua Jiang, are planning their future together with his stepdaughter, Tessa. But just when his life seems normal, a demon from the past returns to draw him down a dark road he hoped had closed forever. Forced into a desperate hunt to save the two women he loves most, Patrick is in a race against time to stop an international conspiracy from becoming the most widespread act of terrorism in U.S. history.