“I do not know what he suffers from, monsieur, but this I do know: when I bring him his food he makes me listen to what he has written, which I cannot understand in the least.”

“Ah, he must be a philosopher, then.”

“I do not know, monsieur. I only know that I do not understand him.”

“Then he is most certainly a philosopher. Well, Monsieur Bonvallot, I will not keep you from your duties. Do not forget the Beaune; and presently, perhaps, you will be able to assist me in getting clean linen and so forth, for I came here in such a hurry, that I forgot to order my valet to pack my valise.”

“We will arrange about that, monsieur,” replied Bonvallot.

He went out, shutting and locking the door, and Rochefort was left alone with his thoughts. He walked to the window again and looked out. Then he opened the glass sash. The walls at the openings of these upper windows were bevelled, else each window would have been but the opening of a tunnel six feet long. They were guarded each by a single iron bar, and the glass sash opened inwardly. Rochefort had as yet no idea of flight, and he was, perhaps, the only prisoner who had ever looked through that window without measuring the thickness of the bar, or estimating the height of the window from the ground.

He was quite content with his position for the moment. Lavenne’s words were still ringing in his ears, and Lavenne’s face was still before him. Rochefort had never feared a man in his life, yet Lavenne had brought him almost to the point of fearing Choiseul.

At bottom, M. de Rochefort was not a fool, and he recognized that whilst Life and Death are simply toys for a brave man to play with, imprisonment for life is a thing for the bravest man to dread. Vincennes was saving him from Choiseul, and as he stood at the window whistling a tune of the day, he followed Choiseul with his mind’s eye, Choiseul ransacking Paris, Choiseul posting spies on all the roads, Choiseul urging on the imperturbable and sphinx-like de Sartines, and Sartines receiving Choiseul’s messages without a smile.

He was standing like this, when a voice made him start and turn round.

“Monsieur de Rochefort,” said the voice, which sounded as though the speaker were in the same room as the prisoner.