A few moments later he opened the door brusquely and with a pleasant smile apologized for keeping me waiting. Then he conducted me to his consulting-room, a gloomy, frowsy little apartment much over-heated, as is usual in Florentine houses in winter. "Well?" he asked. "And how do you feel now, Mr. Garfield?" My reply was the reverse of satisfactory. The mixture had done me good, I said, but I still felt excruciating pains after eating. In consequence, he felt my pulse and took my temperature, while I, on my part, strained my ears listening for any feminine voice. Was the girl whose secret I sought still there? Once I heard a woman's voice, but she cried in Italian to a fellow-servant named Enrichetta, hence she was probably the maid who had admitted me. Moroni, after he had concluded his examination, seemed a little puzzled. No doubt I had, in my ignorance, described some imaginary symptom which was not in accordance with what he expected to find. He, however, gave me another prescription, and as he wrote it I wondered how he would act if he knew that my object in becoming his patient was to probe the mystery of the affair in Stretton Street. I had at least gained knowledge of his intended visit to the Villa Clementini unknown to the butler, Robertson. He was to be there either at eleven o'clock that night or at eleven next morning. It occurred to me that I might possibly learn something of interest if I watched the doctor's movements at the hours indicated. "Your symptoms rather puzzle me," said the doctor at last, eyeing me from beneath his bushy black brows. "To tell the truth, I fancy you must have eaten something poisonous at one of the restaurants. They sometimes use tinned food which is not quite good, and it sets up irritant poisoning. I had a case very similar to yours last week. The climate here did not suit him, and he has returned to England." "Oh! I hope to be better in a few days, doctor," I said cheerfully, for I was anxious for another opportunity to visit him. I wanted to see, and if possible speak in secret with the girl who bore such a striking resemblance to the dead Gabrielle Engledue. On returning to the hotel I rang up the Villa Clementini and inquired for Robertson. In a few moments I spoke to him, asking if he were coming down to the Gambrinus. "I'm sorry," he replied. "I have to go to Pisa by the eight o'clock train. But I shall be back to-morrow morning." By that I established the fact that Oswald De Gex had an appointment with Moroni at eleven o'clock that night, and not on the following morning.