We unlatched the gate and walked up the path. As we went round to the side of the house, I drew Poirot's attention to a window on the upper floor. Thrown sharply on the blind was the profile of Marthe Daubreuil.
“Ah!" said Poirot. "I figure to myself that that is the room where we shall find Jack Renauld.”
Madame Daubreuil opened the door to us. She explained that Jack was much the same, but perhaps we would like to see for ourselves. She led us upstairs and into the bedroom. Marthe Daubreuil was embroidering by a table with a lamp on it. She put her finger to her lips as we entered.
Jack Renauld was sleeping an uneasy, fitful sleep, his head turning from side to side, and his face still unduly flushed.
“Is the doctor coming again?” asked Poirot in a whisper.
“Not unless we send. He is sleeping—that is the great thing. Maman made him a tisane.”
She sat down again with her embroidery as we left the room. Madame Daubreuil accompanied us down the stairs. Since I had learned of her past history, I viewed this woman with increased interest. She stood there with her eves cast down, the same very faint enigmatical smile that I remembered on her lips. And suddenly I felt afraid of her, as one might feel afraid of a beautiful poisonous snake.
“I hope we have not deranged you, madame,” said Poirot politely as she opened the door for us to pass out.
“Not at all, monsieur.”
“By the way,” said Poirot, as though struck by an afterthought, M. Stonor has not been in Merlinville today, has he?”
I could not at all fathom the point of this question, which I well knew to be meaningless as far as Poirot was concerned.
Madame Daubreuil replied quite composedly, “Not that know of.”
“He has not had an interview with Mrs. Renauld?”
“How should I know that, monsieur?”
“True,” said Poirot. “I thought you might have seen him coming or going, that is all. Good night, madame.”
“Why—” I began.
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