The Red House Mystery: A.A. Milne

Antony Gillingham chooses Woodham for a holiday, because he likes the look of the station. Nearby is the Red House, the home of Mark Ablett, where his friend Bill Beverley is a guest at a house party. When Antony calls to see Bill, he finds the dead body of Mark's brother Robert, shot between the eyes. It looks like murder; and the host is nowhere to be found. Having served briefly as a valet, newspaper reporter, shop assistant and waiter, Antony's ready for a new profession: sleuthing. Every Sherlock Holmes must have a Dr. Watson - or in this case, his friend Bill. There's a suspect ready to hand and they set out to trap the possible killer.