Ruth’s old friend Dan Golding dies in a house fire. But before he died Dan wrote to Ruth telling her that he had made a ground-breaking archaeological discovery. Could this find be linked to his death and who are the sinister neo-Nazi group who were threatening Dan? Ruth makes the trip to Blackpool to investigate, wary of encroaching on DCI Harry Nelson’s home ground. Soon Ruth is embroiled in a mystery that involves the Pendle Witches, King Arthur and – scariest of all – Nelson’s mother.