"All right, sir; I hope I shall soon be able to prove all that I have stated."

"I hope so," replied he, in a tone which assured me that he did not expect anything of the kind.

I led the way across the flat roof, and at the next block we mounted the ridge-pole of the pitch roof. Mr. Bogart cautioned me to move with care, so as not to disturb the inmates of the houses beneath us. I was soon in position to see the bright light streaming up from the tenement to which I had been decoyed by the villains.

"That's the house," said I, pointing to the light.

"Did you come up through that scuttle?" he asked.

"No, I came up over the top of the luthern window."

"Impossible!" exclaimed he, glancing at the window.

"It is true; and I suppose I shall have to go in that way," I continued; and I explained minutely how I had made my exit from the chamber.

"Lead on. We will examine the house," said Mr. Bogart.