“That is good logic,” he said, “so far as it goes. But how do you, how can you, account for it not being there?”

“Perhaps a body-snatcher,” I suggested. “Some of the undertaker's people may have stolen it.” I felt that I was speaking folly, and yet it was the only real cause which I could suggest.

The Professor sighed. “Ah well!” he said,” we must have more proof. Come with me.”

He put on the coffin lid again, gathered up all his things and placed them in the bag, blew out the light, and placed the candle also in the bag. We opened the door, and went out. Behind us he closed the door and locked it. He handed me the key, saying, “Will you keep it? You had better be assured.”