"If so, it will fail. I will not leave the city for an hour, even were Turenne to offer me the command of a regiment."

"Why not accept service with the Duke? You would be in a much safer position."

"No. I will see this thing through alone. I will not budge a foot for all the fighting priests in the country."

"Don't be over venturesome. De Retz is a crafty foe and is playing just now for high stakes. If rumour speaks true, he is going to try a fall with Condé himself. Now I must set Armand at liberty, but I will come to your rooms at the first opportunity. Meanwhile, if you require help, a note will bring me instantly."

I returned home still in a state of bewilderment. The mystery was as dark as ever, and, cudgel my brains as I would, I could throw no light on it.

That same evening I laid the case before John Humphreys, but naturally he was unable to offer any explanation.

"Show me an enemy," said he, "and I will stand up against him, but I am a poor hand at fighting shadows. However, it is plain enough that some one has marked you down, and you will have to walk warily."

That, indeed, was the only advice any one could offer. The thing which troubled me most at this time was the presence of the spy in the Rue Crillon. The ladies apparently had not noticed him, so I said nothing to them, but continued to keep a strict watch on the mysterious stranger who night after night prowled about near their house. What he expected to gain was difficult to imagine, as he neither followed Madame Coutance abroad nor attempted to molest her. At first I thought him a clumsy fellow, but twice when I tried to catch him he vanished cleverly down the narrow streets.

One evening, while strolling carelessly along the Rue Pierre, I met my cousin Henri. He was wearing a long mantle with a hood, and appeared in a great hurry. To my surprise, however, he stopped and exclaimed quite cordially, "Ah, cousin, you are a stranger! I have not seen you for a long time. I was sorry to hear of Peleton's mad prank. Were you hurt?"

"No," said I, rather shortly.