"Well, well; no offence, Sam. We can't afford to quarrel. Come over to the window if you want to see the beauty properly. Now hold it to the light! Here!"

"Thank you!"

With a single spring Holmes had leaped from the dummy's chair and had grasped the precious jewel. He held it now in one hand, while his other pointed a revolver at the Count's head. The two villains staggered back in utter amazement. Before they had recovered Holmes had pressed the electric bell.

"No violence, gentlemen—no violence, I beg of you! Consider the furniture! It must be very clear to you that your position is an impossible one. The police are waiting below."

The Count's bewilderment overmastered his rage and fear.

"But how the deuce——?" he gasped.

"Your surprise is very natural. You are not aware that a second door from my bedroom leads behind that curtain. I fancied that you must have heard me when I displaced the figure, but luck was on my side. It gave me a chance of listening to your racy conversation which would have been painfully constrained had you been aware of my presence."

The Count gave a gesture of resignation.

"We give you best, Holmes. I believe you are the devil himself."

"Not far from him, at any rate," Holmes answered, with a polite smile.