“I do not know, Hastings. There is just a chance of it. Of course Giraud is all wrong—wrong from beginning to end. If Jack Renauld is guilty, it is in spite of Giraud’s arguments, not because of them. And the gravest indictment against him is known only to me.”
“What is that?” I asked, impressed.
“If you would use your grey cells, and see the whole case clearly as I do, you too would perceive it, my friend.”
This was what I called one of Poirot’s irritating answers. He went on, without waiting for me to speak.
“Let us walk this way to the sea. We will sit on that little mound there, overlooking the beach, and review the case. You shall know all that I know, but I would prefer that you should come at the truth by your own efforts—not by my leading you by the hand.”
We established ourselves on the grassy knoll as Poirot had suggested, looking out to sea. From farther along the sand, the cries of the bathers reached us faintly. The sea was of the palest blue, and the halcyon calm reminded me of the day we had arrived at Merlinville, my own good spirits, and Poirot’s suggestion that I was “fey.” What a long time seemed to have elapsed since then. And in reality it was only three days!
“Think, my friend,” said Poirot’s voice encouragingly. “Arrange your ideas. Be methodical. Be orderly. There is the secret of success.”
I endeavoured to obey him, casting my mind back over all the details of the case. And reluctantly it seemed to me that the only clear and possible solution was that of Giraud—which Poirot despised. I reflected anew. If there was daylight anywhere it was in the direction of Madame Daubreuil. Giraud was ignorant of her connection with the Beroldy Case. Poirot had declared the Beroldy Case to be all important. It was there I must seek. I was on the right track now. And suddenly I started as an idea of bewildering luminosity shot into my brain. Trembling I built up my hypothesis.
