The Knight (The Patrick Bowers Files, Book 3)

The next move from the national bestselling author of The Rook and The Pawn 

A unique clue is left for FBI criminologist Patrick Bowers at the scene of a ritual murder: a tape recording predicting Bowers' own next move. At a subsequent murder, Bowers uncovers something else: an ancient manuscript being used as a template for the crimes. And the more he deciphers the codes of the text, the more he fears how it will end. Because Bowers isn't closing in on the killer at all. The killer is closing in on him...