"Death on the Nile" is a mystery novel written by Agatha Christie, featuring the famous detective Hercule Poirot. The story unfolds on a luxurious cruise ship traveling down the Nile River in Egypt, where a wealthy heiress is found murdered. Poirot must unravel the complex relationships and motives of the passengers to solve the crime. The novel explores themes of love, jealousy, and betrayal, as each character has a potential reason for wanting the heiress dead. Set against the backdrop of ancient Egyptian landmarks, the story combines a captivating plot with rich descriptions of the setting, making it a classic in the detective genre.