“No, I don’t think I shall. He can come up here if he wants to see us.”

“Oh!” Lawrence looked indeterminate. Something unusually nervous and excited in his manner roused my curiosity.

“What is it?” I asked. “I could go if there’s anything special.”

“It’s nothing much, but—well, if you are going, will you tell him—” he dropped his voice to a whisper—“I think I’ve found the extra coffee-cup!”

I had almost forgotten that enigmatical message of Poirot’s, but now my curiosity was aroused afresh.

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