While Poirot and Race conduct their investigation, Louise Bourget is found dead, her throat cut with one of Dr. Bessner's scalpels, and a fragment of a banknote clutched in her hand. Poirot deduces she saw the murderer coming out of Linnet's cabin and extorted money for her silence. Salome Otterbourne claims to have seen Louise's murderer and is about to tell Poirot and Race when she is shot in the head through an open cabin door with Pennington's revolver, too large to have been used on Linnet.