Agatha Christie was a famous British detective novelist who wrote a large number of detective novels and horror novels. Here are some of Agatha Christie's most famous novels: Murder on the Oriental Express Death on the Nile 3 Sin under the sun (Sin under the sun) The Mysterious Mysterious Man Murder on the Oriental Express In addition to the above, Agatha Christie also wrote many other novels, including suspense novels, mystery novels, horror novels, science fiction novels, and so on. Some of them were also classics. One of the most famous novels by Agatha Christie was Murder on the East Express. This novel became a classic detective novel with its unique plot and character. It was also one of Agatha Christie's representative works. In addition, The Massacre on the Nile River and Sin Under the Sun were also her masterpieces.