FBI Agents are on the run as they attempt to stop a vampire army's nefarious plan in the thrilling finale to this urban fantasy trilogy. A shocking revelation has cast suspicion on agents within the Bureau of Preternatural Investigation. As the Chicago Field Office faces internal investigation, agents Alex and Lindy are on the hook—and on the run. But when all of the BPI's captive vampires are broken free from their maximum security prison, and Hector finally steps out of the shadows, Alex must use every trick to stay ahead of both the BPI and the world's most dangerous shade. Confrontation is inevitable. Success is not.