“No,” said Poirot thoughtfully. “I might have included that in the six, but I did not. No, the sixth point I will keep to myself for the present.”

He looked quickly round the room. “There is nothing more to be done here, I think, unless”⁠—he stared earnestly and long at the dead ashes in the grate. “The fire burns⁠—and it destroys. But by chance⁠—there might be⁠—let us see!”

Deftly, on hands and knees, he began to sort the ashes from the grate into the fender, handling them with the greatest caution. Suddenly, he gave a faint exclamation.

“The forceps, Hastings!”

I quickly handed them to him, and with skill he extracted a small piece of half charred paper.

“There, mon ami !” he cried. “What do you think of that?”