When it comes to writing deftly layered, tightly coiled novels of suspense, #1 New York Times bestselling author Jonathan Kellerman reigns supreme as 'master of the psychological thriller' (People). Now, Kellerman has worked his magic again in this chilling new masterpiece. The anonymous caller has an ominous tone and an unnerving message about something 'real dead . . . buried in your marsh.' The eco-volunteer on the other end of the phone thinks it's a prank, but when a young woman's body turns up in L.A.'s Bird Marsh preserve no one's laughing. And when the bones of more victims surface, homicide detective Milo Sturgis realizes the city's under siege to an insidious killer. Milo's first move: calling in psychologist Alex Delaware.