For longer than recorded history there have been tales of spirits and of places where our hackles rise and our skin turns cold. Bestselling historian Neil Oliver travels the British Isles on a deliciously spine-chilling tour that spans several centuries and explores more than 20 sites - castles, vicarages and towers, lonely shorelines and forgotten battlefields - to unpick their stories. Oliver invokes his family's history alongside that of kings and queens past as he probes why our emotions and senses are heightened in certain locations where the separation between dimensions seems gossamer thin.