"What!" I cried. "Have you succeeded?... In twelve minutes?..."

He took a few steps up and down the room, lit a cigarette and said:

"You might ring up Baron Repstein, if you don't mind, and tell him I shall be with him at ten o'clock this evening."

"Baron Repstein?" I asked. "The husband of the famous baroness?"

"Yes."

"Are you serious?"

"Quite serious."

Feeling absolutely at a loss, but incapable of resisting him, I opened the telephone-directory and unhooked the receiver. But, at that moment, Lupin stopped me with a peremptory gesture and said, with his eyes on the paper, which he had taken up again:

"No, don't say anything.... It's no use letting him know.... There's something more urgent ... a queer thing that puzzles me.... Why on earth wasn't the last sentence finished? Why is the sentence...."

He snatched up his hat and stick: