Betselling author Tess Gerritsen delivers a terrifying story of Satanic ritual and secret societies. When medical examiner Maura Isles comes across dismembered bodies she is forced to call on the Mephisto Club for assistance - does this old and secret society dedicated to the study of evil hold the answers to the recent spate of murders? 'Gerritsen combines her gruesome anatomical expertise with a seductive sense of the supernatural that is creepily credible' "Times"