The world-s greatest detective, Hercule Poirot-legendary star of Agatha Christie-s Murder on the Orient Express and Death on the Nile-returns to solve a fiendish new mystery.Hercule Poirot is travelling by luxury passenger coach from London to the exclusive Kingfisher Hill estate, where Richard Devonport has summoned him to prove that his fianc- Helen, is innocent of the murder of his brother, Frank. But there is a strange condition attached to this request: Poirot must conceal his true reason for being there.The coach is forced to stop when a distressed woman demands to get off, insisting that if she stays in her seat, she will be murdered. Although the rest of the journey passes without anyone being harmed, Poirot-s curiosity is aroused, and his fears are later 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