Summary

The maid under the bed is dead. She has been stabbed in the heart. Clutched in her hand is a corner of a French note. Race and Poirot conclude that she was blackmailing the real murderer. Dr. Bessner confirms that she was stabbed with an instrument that is thin like that of a surgical knife. It offends the doctor when Poirot asks if any of his surgical knives are missing. As Poirot is leaving the cabin, he hears Rosalie and Jackie having a conversation. Poirot tells them there has been another murder and he confronts Rosalie about lying about having a gun and about what she saw when she was on deck. Rosalie thrusts her purse at Poirot but she does not have a gun. She also denies seeing anyone.

Analysis

Rosalie must have disposed of the small pistol after the stewardess searches her purse and...