I groaned. I had not been quite so circumspect as I ought to have been, but who would have thought—

“I have had something to do with police work in my day,” continued M. Geoffroy blandly, “though not of late years; but my knowledge of their methods is not altogether rusty and my powers of observation are not yet dulled. During my sister’s visit to you this afternoon I noticed the blouse and cap of a commissionnaire lying in a bundle in a corner of your room. Now, though M. de Marsan has been in a burning fever since he discovered his loss, he kept just sufficient presence of mind at the moment to say nothing about that loss to any of the Chancellerie officials, but to go straight home to his apartments in the Rue Royale and to send for my sister and for me. When we came to him he was already partly delirious, but he pointed to a parcel and a letter which he had brought away from his office. The parcel proved to be an empty box and the letter a blank sheet of paper; but the most casual inquiry of the concierge at the Chancellerie elicited the fact that a commissionaire had brought these things in the course of the morning. That was your second mistake, my good M. Ratichon; not a very grave one, perhaps, but I have been in the police, and somehow, the moment I caught sight of that blouse and cap in your office, I could not help connecting it with the commissionnaire who had brought a bogus parcel and letter to my future brother-in-law a few minutes before that mysterious and unexplained altercation took place in the corridor.”

Again I groaned. I felt as a child in the hands of that horrid creature who seemed to be dissecting all the thoughts which had run riot through my mind these past twenty hours.

“It was all very simple, my good M. Ratichon,” now concluded my tormentor still quite amiably. “Another time you will have to be more careful, will you not? You will also have to bestow more confidence upon your partner or servant. Directly I had seen that commissionnaire’s blouse and cap, I set to work to make friends with M. Theodore. When my sister and I left your office in the Rue Daunou, we found him waiting for us at the bottom of the stairs. Five francs loosened his tongue: he suspected that you were up to some game in which you did not mean him to have a share; he also told us that you had spent two hours in laborious writing, and that you and he both lodged at a dilapidated little inn, called the ‘Grey Cat,’ in Passy. I think he was rather disappointed that we did not shower more questions, and therefore more emoluments, upon him. Well, after I had denounced this house to the police as a Bonapartiste club, and saw it put under the usual consigne, I bribed the corporal of the gendarmerie in charge of it to let me have Theodore’s company for the little job I had in hand, and also to clear the back garden of sentries so as to give you a chance and the desire to escape. All the rest you know. Money will do many things, my good M. Ratichon, and you see how simple it all was. It would have been still more simple if the stolen document had not been such an important one that the very existence of it must be kept a secret even from the police. So I could not have you shadowed and arrested as a thief in the usual manner! However, I have the document and its ingenious copy, which is all that matters. Would to God,” he added with a suppressed curse, “that I could get hold equally easily of the Secret Service agent to whom you, a Frenchman, were going to sell the honour of your country!”

Then it was that—though broken in spirit and burning with thoughts of the punishment I would mete out to Theodore—my full faculties returned to me, and I queried abruptly:

“What would you give to get him?”

“Five hundred francs,” he replied without hesitation. “Can you find him?”

“Make it a thousand,” I retorted, “and you shall have him.”

“How?”

“Will you give me five hundred francs now,” I insisted, “and another five hundred when you have the man, and I will tell you?”