At that moment Ali touched him slightly on the shoulder. He turned; Ali pointed to the window of the room in which they were, facing the street.

“I see!” said he, “there are two of them; one does the work while the other stands guard.” He made a sign to Ali not to lose sight of the man in the street, and turned to the one in the dressing-room.

The glass-cutter had entered, and was feeling his way, his arms stretched out before him. At last he appeared to have made himself familiar with his surroundings. There were two doors; he bolted them both.

When he drew near to the bedroom door, Monte Cristo expected that he was coming in, and raised one of his pistols; but he simply heard the sound of the bolts sliding in their copper rings. It was only a precaution. The nocturnal visitor, ignorant of the fact that the count had removed the staples, might now think himself at home, and pursue his purpose with full security. Alone and free to act as he wished, the man then drew from his pocket something which the count could not discern, placed it on a stand, then went straight to the secretaire, felt the lock, and contrary to his expectation found that the key was missing. But the glass-cutter was a prudent man who had provided for all emergencies. The count soon heard the rattling of a bunch of skeleton keys, such as the locksmith brings when called to force a lock, and which thieves call nightingales, doubtless from the music of their nightly song when they grind against the bolt.

“Ah, ha,” whispered Monte Cristo with a smile of disappointment, “he is only a thief.”

But the man in the dark could not find the right key. He reached the instrument he had placed on the stand, touched a spring, and immediately a pale light, just bright enough to render objects distinct, was reflected on his hands and countenance.

“By heavens,” exclaimed Monte Cristo, starting back, “it is——”

Ali raised his hatchet.

“Don’t stir,” whispered Monte Cristo, “and put down your hatchet; we shall require no arms.”