Trouble is brewing for the Hoggetts and their friend Chief Inspector Macdonald in Lunesdale, deep in the Lancashire fell country. By the jagged cliffs and chilling depths of a secluded quarry pool, strange noises disturb the night, and after an architect surveying the area is nearly hoisted into the cold waters by an unseen assailant, suspicions of a cold current of crime running through the area become a matter for the police. First published in 1949, this classic of Lake District crime fiction pairs Lorac's evocative depictions of her beloved Lunesdale with a twisting and intelligent puzzle for Chief Inspector Macdonald.