Poirot Elucidates Certain Points“Why did you measure that overcoat?” I asked, with some curiosity, as we walked down the hot white road at a leisurely pace. “ Parbleu! to see how long it was,” replied my friend imperturbably. I was vexed. Poirot’s incurable habit of making a mystery out of nothing never failed to irritate me. I relapsed into silence, and followed a train of thought of my own. Although I had not noticed them specially at the time, certain words Mrs. Renauld had addressed to her son now recurred to me, fraught with a new significance. “So you did not sail?” she had said, and then had added: “ After all, it does not matter—now. ” What had she meant by that? The words were enigmatical—significant. Was it possible that she knew more than we supposed? She had denied all know

