Lettice Cooper (1897-1994) has woven an enthralling mystery featuring a wide range of characters, including the previously introduced Chief Detective Inspector Corby. This story, set in the times of the 'Irish troubles', has its beginning when the British police receive an anonymous letter informing them that 'something strange' is going on at Hollycroft, a large, decaying Victorian house in a London suburb. At the time, the police are doing neighbourhood searches for IRA bombs and bombers . . .