Quick as lightning, Lecoq picked up the missile. “Ah,” murmured he, “I guessed that this man was in communication with his friends.”

The young detective’s evident delight changed the governor’s stupor into fury. “Ah! my prisoners are writing!” he exclaimed, wild with passion. “My warders are acting as postmen! By my faith, this matter shall be looked into.”

So saying, he was about to rush to the door when Lecoq stopped him. “What are you going to do, sir?” he asked.

“I am going to call all the employees of this prison together, and inform them that there is a traitor among them, and that I must know who he is, as I wish to make an example of him. And if, in twenty-four hours from now, the culprit has not been discovered, every man connected with this prison shall be removed.”

Again he started to leave the room, and Lecoq, this time, had almost to use force to detain him. “Be calm, sir; be calm,” he entreated.

“I will punish—”

“Yes, yes—I understand that—but wait until you have regained your self-possession. It is quite possible that the guilty party may be one of the prisoners who assist in the distribution of food every morning.”

“What does that matter?”

“Excuse me, but it matters a great deal. If you noise this discovery abroad, we shall never discover the truth. The traitor will not be fool enough to confess his guilt. We must be silent and wait. We will keep a close watch and detect the culprit in the very act.”

These objections were so sensible that the governor yielded. “So be it,” he sighed, “I will try and be patient. But let me see the missive that was enclosed in this bit of bread.”