“They have but one retreat,” whispered Holmes. “That is back through the house into Saxe-Coburg Square. I hope that you have done what I asked you, Jones?”

“I have an inspector and two officers waiting at the front door.”

“Then we have stopped all the holes. And now we must be silent and wait.”

What a time it seemed! From comparing notes afterwards it was but an hour and a quarter, yet it appeared to me that the night must have almost gone, and the dawn be breaking above us. My limbs were weary and stiff, for I feared to change my position; yet my nerves were worked up to the highest pitch of tension, and my hearing was so acute that I could not only hear the gentle breathing of my companions, but I could distinguish the deeper, heavier in-breath of the bulky Jones from the thin, sighing note of the bank director. From my position I could look over the case in the direction of the floor. Suddenly my eyes caught the glint of a light.