On entering the room I noticed that the doctor sniffed the air mysteriously as he crossed to the patient, who I now saw was unconscious. He examined him, asked me a few brief questions, and then fixing his eyes upon me, exclaimed in Italian:—

“This is a rather curious affair, signore.”

“Why?” I inquired. “The gentleman was taken this evening while we were walking together. He complained of bad pains in his head and stomach.”

“Yes, but who gave him the anaesthetic?” asked the doctor.

“Anaesthetic!” I exclaimed. “Why nobody, as far as I know.”

“Well, chloroform has been given him, and quite recently. He struggled against it—don’t you see?” and he indicated the American’s clenched hands and the disordered bed. “How long were you absent?”

“About half an hour.”

“Then some one must have come here while you were away,” the doctor declared, stroking his dark beard very thoughtfully. At first I was alarmed lest the unfortunate American might die, but the doctor, after due examination, assured me that there was really no danger. For half an hour we sat and waited, until at length the man to whom the anaesthetic had been so mysteriously administered regained consciousness. It was a slow recovery, but when at length his dull eyes fell upon me he beckoned me to him and with excited gestures pointed to a leather-covered box beneath a table opposite. I pulled it out and tried the lock. It was still secure, and he nodded in satisfaction. Presently the doctor left, and I returned to bed, but imagine my blank amazement next morning when, just as I was sipping my coffee in my room, Blenkap dashed in, crying:—

“I’ve been robbed! That fellow, Shacklock, did it! He must have crept into my room while you were away, rendered me senseless, took the key from the gold chain I always wear around my neck, opened the box, extracted the whole of the money and jewellery, relocked the box, and then had the audacity to replace the chain around my neck!”

“But he is your friend?” I exclaimed, with astonishment.