Page:Christie - The Mysterious Affair at Styles.djvu/232

 not to spoil his effect, I gave him Lawrence's message.

"Aha!" he cried. "So he has found the extra coffee-cup. That is good.  He has more intelligence than would appear, this long-faced Monsieur Lawrence of yours!"

I did not myself think very highly of Lawrence's intelligence; but I forebore to contradict Poirot, and gently took him to task for forgetting my instructions as to which were Cynthia's days off.

"It is true. I have the head of a sieve.  However, the other young lady was most kind.  She was sorry for my disappointment, and showed me everything in the kindest way."

"Oh, well, that's all right, then, and you must go to tea with Cynthia another day."

I told him about the letter.

"I am sorry for that," he said. "I always had hopes of that letter. But no, it was not to be.  This affair must all be unravelled from within." He tapped his forehead. "These little grey cells. It is 'up to them'—as you say over here." Then, suddenly, he asked: "Are you a judge of finger-marks, my friend?"

"No," I said, rather surprised, "I know that there are no two finger-marks alike, but that's as far as my science goes."

"Exactly."