The world's greatest detective, Hercule Poirot—legendary figure of Agatha Christie's novels such as "Murder on the Orient Express" and "Death on the Nile"—returns to solve a challenging mystery.

Hercule Poirot travels by luxury coach from London to the exclusive Kingfisher Hill estate, where Richard Devonport has invited him to prove that his fiancée, Helen, is innocent of murdering his brother, Frank. However, there is a strange condition to this request: Poirot must conceal the real reason for his presence.

The coach is forced to make a stop when an upset woman insists on getting off, claiming that if she remains in her seat, she will be murdered. Although the rest of the journey passes without anyone coming to harm, Poirot's curiosity has already been piqued, and his fears are confirmed when a body is discovered with a macabre note attached…

Could this new murder and the peculiar incident on the coach be clues to solving the mystery of who killed Frank Devonport? And if Helen is innocent, can Poirot find the real culprit in time to save her from the gallows?

Pages: 352, Dimensions: 12.9x12.9cm