The prisoner had dropped his mask of careless gaiety, and had assumed a surly, discontented tone. But his troubles were by no means ended; in fact, the battle had only just begun. Laying a tiny linen bag on his desk, M. Segmuller asked him if he recognized it.

“Perfectly! It is the package that the governor of the Depot placed in his safe.”

The magistrate opened the bag, and poured the dust that it contained on to a sheet of paper. “You are aware, prisoner,” said he, “that this dust comes from the mud that was sticking to your feet. The police agent who collected it has been to the station-house where you spent the night of the murder, and has discovered that the composition of this dust is identical with that of the floor of the cell you occupied.”

The prisoner listened with gaping mouth.

“Hence,” continued the magistrate, “it was certainly at the station-house, and designedly, that you soiled your feet with that mud. In doing so you had an object.”

“I wished—”

“Let me finish. Being determined to keep your identity secret, and to assume the character of a member of the lower classes—of a mountebank, if you please—you reflected that the care you bestow upon your person might betray you. You foresaw the impression that would be caused when the coarse, ill-fitting boots you wore were removed, and the officials perceived your trim, clean feet, which are as well kept as your hands. Accordingly, what did you do? You poured some of the water that was in the pitcher in your cell on to the ground and then dabbled your feet in the mud that had thus been formed.”

During these remarks the prisoner’s face wore, by turns, an expression of anxiety, astonishment, irony, and mirth. When the magistrate had finished, he burst into a hearty laugh.

“So that’s the result of twelve or fourteen hours’ research,” he at length exclaimed, turning toward Lecoq. “Ah! Mr. Agent, it’s good to be sharp, but not so sharp as that. The truth is, that when I was taken to the station-house, forty-eight hours—thirty-six of them spent in a railway carriage—had elapsed since I had taken off my boots. My feet were red and swollen, and they burned like fire. What did I do? I poured some water over them. As for your other suspicions, if I have a soft white skin, it is only because I take care of myself. Besides, as is usual with most men of my profession, I rarely wear anything but slippers on my feet. This is so true that, on leaving Leipsic, I only owned a single pair of boots, and that was an old cast-off pair given me by M. Simpson.”

Lecoq struck his chest. “Fool, imbecile, idiot, that I am!” he thought. “He was waiting to be questioned about this circumstance. He is so wonderfully shrewd that, when he saw me take the dust, he divined my intentions; and since then he has managed to concoct this story—a plausible story enough—and one that any jury would believe.”