"And then you saw what had happened," volunteered Poirot. “Très bien. I think I know all I want to know."
"I hope, Monsieur le Commissaire, it is not that I have been guilty of any negligence," said the man piteously. "Such an affair to happen on the Blue Train! It is horrible."
"Console yourself," said the Commissary. "Everything will be done to keep the affair as quiet as possible, if only in the interests of justice. I cannot think you have been guilty of any negligence."
"And Monsieur le Commissaire will report as much to the Company?"
"But certainly, but certainly," said M. Caux impatiently. "That will do now."
The conductor withdrew.
"According to the medical evidence," said the Commissary, "the lady was probably dead before the train reached Lyons. Who then was the murderer? From Mademoiselle’s story, it seems clear that somewhere on her journey she was to meet this man of whom she spoke. Her action in getting rid of the maid seems significant. Did the man join the train at Paris, and did she conceal him in the adjoining compartment? If so, they may have quarrelled, and he may have killed herin a fit of rage. That is one possibility. The other, and the more likely to my mind, is that her assailant was a train robber travelling on the train; that he stole along the corridor unseen by the conductor, killed her, and went off with the red morocco case, which doubtless contained jewels of some value. In all probability he
