Tarn Cottage was once home to Barrie Gilpin, suspected of a savage murder. A young woman's body was found on the Sacrifice Stone, an ancient pagan site up on the fell, but Barrie died before he could be arrested. Daniel has personal reasons for becoming fascinated by the case and for believing in Barrie's innocence. When the police launch a cold case review, Brackdale's skeletons begin to rattle and the lives of Daniel and DCI Hannah Scarlett become strangely entwined. Daniel and Hannah each find themselves risking their lives as they search for a ruthless murderer who is prepared to kill again to hide a shocking secret.