In this exclusive authorized edition from the Queen of Mystery, a dead heiress on a train, a murdered recluse, and a wealthy playboy slain at a costume ball are but a few of the unfortunate victims of confounding crimes that Poirot investigates. A beautiful heiress has been found dead on a train. A playboy has been stabbed through the heart during a costume ball. An elderly woman suspects that she is being slowly poisoned to death. A prince fears for his reputation when his fiancée is embroiled in another man's murder. A forgotten recluse makes headlines after he is shot in the head.Who but Agatha Christie could concoct such canny crimes? Who but Belgian detective Hercule Poirot could possibly solve them? It's a challenge to be met--in a triumph of detection.