"The New York Times bestselling author of The Forgotten Room and Deep Storm is back with a new thriller that follows the trail of a killer who cannot exist. featuring Jeremy Logan, the renowned investigator of the supernatural and fantastic. Legends, no matter how outlandish, are often grounded in reality. This has been the guiding principle behind the exhilarating career of Jeremy Logan, the "enigmologist"--an investigator who specializes in analyzing...