"Your doctor, monsieur, is in the house?"

"At this hour? No."

"Ah. That is a pity."

The young man lifted his head from his pillow and looked me over from head to foot with a stare of disdain.

"I do not quite understand. You doubt my word, monsieur?"

"Why not?" I asked sharply.

It was quite possible that the cradle, this rug across his legs, the pillow, were all pretences. Many a soldier in those days was pale and worn and had sunken eyes, and yet was sound of limb and could do a day's work of twenty-four hours if there were need. I had my theory and as yet I had come upon nothing to disprove it. This young officer might very well have brought in a cipher message to the Château Villetaneuse. Mademoiselle Sophie might very well have waved her lantern at the door to summon a fresh messenger.

"No; why should I not doubt your word?" I repeated.

He turned his face to the old lady. "It is your move, Baronne," he said, and she placed the piece she held upon a square of the board. Mademoiselle Sophie took her stand by the table between the players, and the game went on just as though there were no intruder in the room. It was uncomfortable for me. I shifted my feet. I tried to appear at my ease; finally I sat down in a chair. They took no notice of me whatever. But that I felt hot upon a discovery, but that I knew if I could bring back to Noisy-le-Grand proof of where the leakage through our lines occurred, I should earn approval and perhaps promotion, I should very deeply have regretted my entrance into the Château Villetaneuse. And I was extremely glad when at last the corporal opened the door. He had searched the house--he had found no one but Madame de Villetaneuse and an old servant who was watching by her bed.

"Very well," said I, and the corporal returned to the hall.