The latest gripping thriller from world-class forensic anthropologist, Kathy Reichs, bestselling author of BONES TO ASHES. When a careless plumber accidentally knocks through a wall, he is horrified by what he uncovers. Called to the scene is forensic anthropologist Dr Temperance Brennan. What awaits her below is a ritualistic display: slain chickens, a goat - and a skull. Then, just as Tempe is working to determine the post-mortem interval, another body is uncovered. The corpse is headless, the torso is carved with Satanic symbols. Could there be a connection? Must Tempe face the sickening possibility that Devil-worshippers are sacrificing human victims?