The Red House Mystery is the only detective novel written by A.A. Milne, the beloved creator of Winnie-the-Pooh. First published in 1922, this classic whodunit blends clever plotting, crisp dialogue, and gentle humor in the best traditions of the Golden Age of detective fiction. Set in an English country estate, the story begins when a stranger arrives at the Red House — and is soon found dead in a locked room. With the official investigation yielding more questions than answers, an amateur sleuth named Tony Gillingham steps in to unravel the mystery, assisted by his loyal friend Bill. Together, they piece together clues, interview eccentric guests, and uncover secrets hidden beneath the estate’s polished surface. Written with wit and charm, The Red House Mystery offers an engaging blend of suspense and lightheartedness. Milne’s sharp sense of character and playful approach to the genre make this a delightful read for fans of classic British mysteries and cozy detective tales.