故事简介(英文书籍)
Poirot's acquaintance, the mystery writer Ariadne Oliver, provides him with a number of key clues in the novel, beginning with the identity of the girl, Norma Restarick, whom she had met at a party. Mrs. Oliver and Poirot begin to investigate Norma, but soon find that she has apparently gone missing. Mrs. Oliver meets the girls with whom she shares a flat at 67 Borodene Mansions: Claudia Reece-Holland (who turns out to be secretary to Norma's father) and Frances Cary, an artsy girl with long, dark hair that falls across her face. Neither has seen Norma recently. Poirot (visiting her paternal great uncle’s home in Long Basing) finds that her father and stepmother also have no idea where she has gone. Poirot does meet David Baker, Norma’s boyfriend, in the house, and sees that Norma’s stepmother, Mary, is highly annoyed to discover him there. Poirot also meets Norma’s paternal great-uncle, Sir Roderick Horsfield, who is elderly and has poor eyesight. Norma’s father, Andrew, has been staying with Sir Roderick since returning from Africa, where he had made a vast fortune.