Combrisson himself opened to us. "Oh, here you are at last. We began to fear you would never come. It has been as much as we could do to prevent Matthieu from spoiling everything by making a rush for it. Come in, there is not a moment to lose. Deveril may be back any minute, and he's not so easily gulled as those two mugs."

We found Matthieu in a state of great nervous excitement. The long, anxious hours of waiting had told on him. A nervous twitch convulsed his mouth. He jumped spasmodically to his feet as we entered the room. "At last," exclaimed Bonafede, with a sigh of relief on seeing us. "Now, Matthieu," he said, laying a hand encouragingly on the man's shoulder, "there is no time to be lost. Isabel will go downstairs whilst you two exchange clothes. As soon as you are ready I will fetch the cabs. Be courageous, and, above all, calm, and in half-an-hour all will be over."

I went downstairs with Madame Combrisson, and we paced nervously up and down the front parlour. Every other minute one of us went to look out of the window. It was nearly dark. The street lamps were lighting up, and still the two detectives watched on the other side of the road.

"Where is Sylvestre?" I at last inquired, to break the tense silence.

"Who knows? He left about half-an-hour ago, saying he would soon be back. He is off on some madcap expedition, you may be sure. He is a dreadful farceur."

At that moment no fewer than three barrel-organs came up the street, stopped nearly opposite the house, and started playing "The man who broke the bank at Monte Carlo," and other similar classics. I was at the window and saw Sylvestre go gravely up to the detectives, bow, say a few words, and cross over to our door. Madame rushed out to open to him.

"So here you are, Mademoiselle. All is well, I hope?" he inquired.

I nodded assent.

"Oh, what a game it will be to see their faces to-morrow when Deveril comes round with his warrant! Meanwhile, I was sure those poor devils were boring themselves to death, so I went down to the Italian quarter and brought back these musicians. I have just told them that I hope the music will help them to pass a pleasant half-hour."

Just then Bonafede came down, followed by the false Matthieu. The lower part of his face was concealed in a muffler, and the illusion was really very deceptive.