The story begins in the fictional Welsh seaside town of Marchbolt. , the local vicar's son, is playing a round of golf when he discovers a man who has fallen from a cliff. Before dying, the man utters a single, cryptic question: "Why didn't they ask Evans?" .

is a classic 1934 mystery novel by Agatha Christie that deviates from her usual Hercule Poirot or Miss Marple formats. Instead, it features a youthful, adventurous duo who stumble into a deadly conspiracy after a chance discovery on a golf course. The Central Mystery