What is the main setting of the stories contained in the collection, Break of Dark?

All five of the stories are set in various regions of Great Britain, such as the Isle of Skye ("Hitch-hiker"), Cornwall ("Blackham's Wimpey"), and the seaside resort of Graymouth ("Sergeant Nice"). Four of them take place in indeterminate contemporary times, while "Blackham's Wimpey," is set in one of Westall's favorite subjects, the years of World War II.