In last year’s Nightshades, Melissa F. Olson introduced readers to The Bureau of Preternatural Investigations, a federal agency tasked with confronting Shades, a type of vampire. That novella was a lightning-fast, bite-sized adventure in which the Feds track down a rogue band of shades, succeeding only after a high, bloody body count. In this sequel, members of the Chicago branch of the BPI are recovering from that mission, only to get a call from Wisconsin, where a young man has been arrested, on the suspicion that he is a shade. However, when he escapes, the team thinks that there might be more to the jailbreak than meets the eye.
