解锁蜂窝谜案：探秘真相，揭示背后阴影下水道美人鱼

　　At a village fête, Poirot runs into an old friend, John Harrison and his fiancé Molly Deane, a fashion model. Harrison invites Poirot and Hastings to tea the following week where Poirot learns that Molly had once been engaged to a local artist, Claude Langton. Poirot is puzzled by a number of apparently unrelated incidents but concludes that someone is being untruthful and that... (展开全部)