“At once. We will command an auto.”

Half an hour later saw us at the Villa Marguerite. Marthe was at the door to meet us, and led Poirot in, clinging with both hands to one of his.

“Ah, you have come—it is good of you. I have been in despair, not knowing what to do. They will not let me go to see him in prison even. I suffer horribly, I am nearly mad. Is it true what they say, that he does not deny the crime? But that is madness. It is impossible that he should have done it! Never for one minute will I believe it.”

“Neither do I believe it, mademoiselle,” said Poirot gently.

“But then why does he not speak? I do not understand.”

“Perhaps because he is screening some one,” suggested Poirot, watching her.

Marthe frowned.

“Screening some one? Do you mean his mother? Ah, from the beginning I have suspected her. Who inherits all that vast fortune? She does. It is easy to wear widow’s weeds and play the hypocrite. And they say that when he was arrested she fell down—like that.” She made a dramatic gesture. “And without doubt, M. Stonor, the secretary, he helped her. They are thick as thieves, those two. It is true she is older than he—but what do men care—if a woman is rich!”

There was a hint of bitterness in her tone.

“Stonor was in England,” I put in.