The Skeleton Key, written by Bernard Capes and first published in 1920, is a detective novel that intertwines mystery and human relationships. The story follows Mr. Bickerdike, who encounters the enigmatic M. le Baron in Paris before traveling to the Kennett family estate in Hampshire, where a maid's murder disrupts the household. Notably, it was the first detective novel published by Collins and showcases a blend of crime, suspense, and a love story, making it a unique entry in early 20th-century detective fiction.
