“Then let us come at once,” I cried, “we are wasting the precious, precious time!” The Professor did not move, but simply said:⁠—

“And how are we to get into that house in Piccadilly?”

“Any way!” I cried. “We shall break in if need be.”

“And your police; where will they be, and what will they say?”

I was staggered; but I knew that if he wished to delay he had a good reason for it. So I said, as quietly as I could:⁠—