House Mystery, his only mystery novel. Set in contemporary time when written, Milne's novel is a delightful "whodunnit" story of two friends who find themselves in the middle of a puzzle and the only ones who know enough to sort everything out. Milne's red herrings, suspense, and light-hearted comedy make this novel a hidden treasure of British literature. If you only know Milne for Winnie the Pooh, this novel might just convince you to try out everything else he has written too.