The titles of all the detective novels by Agatha Christie are listed in the following order: Murder on the Oriental Express (1929) Massacre on the Nile River (1930) Sin Under the Sun (1931) The Mystery of Murder (1932) Murder on the Oriental Express (1934) 6. Mariah Carey (1937) Sin Under the Sun (1931) The Mystery of Murder (1932) Murder on the Oriental Express (1934) Christie's Disappearance (1938) Pearl Harbor Incident (1941) The Mystery of the Twelve Murders (1947) Murder on the Oriental Express (1934) Sin Under the Sun (1931) Christie's Disappearance (1938) The Scarlet Letter (1952) Please note that these novels may have been adapted into movies, TV series, stage plays, and other works many times.