him. It was now seven o'clock, and I found him up. I made my apologies for the early hour of my visit, put the whole matter before him, and produced the syringe. For a moment he was inclined to take my story with incredulity, but by degrees he became interested, and ended by inviting me to breakfast with him. After the meal we repaired to his consulting-room to make our investigations. He brought out his microscope, which I saw, to my delight, was of the latest design, and I set to work at once, while he watched me with evident interest. At last the crucial moment came, and I bent over the instrument and adjusted the focus on my preparation. My suspicions were only too well confirmed by which I had extracted what I saw. The substance from the syringe was a mass of micro-organisms, but of what nature I did not know. I had never seen any quite like them before. I drew back.
"I wish you would look at this," I said. "you tell me you have devoted considerable attention to bacteriology. Please tell me what you see."
Dr. Benson applied his eye to the instrument, regulating the focus for a few moments in silence, then he raised his head, and looked at me with a curious expression.
"Where did this culture come from?" he asked.
"From London, I presume," I answered.
"It is extraordinary," he said, with emphasis, "but there is no doubt whatever that these organisms are the specific germs of the very disease I have studied here so assiduously ; they are the micrococci of Mediterranean fever, the minute round or oval bacteria. They are absolutely characteristic."
I jumped to my feet.
"Is that so?" I cried. The diabolical nature of the plot was only too plain. These germs injected into a patient would produce a fever which only occurs in the Mediterranean. The fact that the boy had been in the Mediterranean even for a short time would be a complete blind as to the way in which they obtained access to the body, as every one would think the disease occurred from natural causes.
"How long is the period of incubation?" I asked.
"About ten days," replied Dr. Benson.
I extended my hand.
"You have done me an invaluable service," I said.
"I may possibly be able to do you a still further service," was his reply. "I have made Mediterranean fever the study of my life, and have, I believe, discovered an antitoxin for it. I have tried my discovery on the patients of the naval hospital with excellent results. The local disturbance is slight, and I have never found bad symptoms follow the treatment. If you will bring the boy to me I will administer the antidote without delay."
I considered for a moment, then I said: "My position is a terrible one, and I am inclined to accept your proposition. Under the circumstances it is the only chance."
"It is," repeated Dr. Benson. "I shall be at your service whenever you need me."
I bade him good-bye and quickly left the house.
It was now ten o'clock. My first object was to find Dr. Fietta, to speak to him boldly, and take the boy away by main force if necessary. I rushed back to the Grand Hotel, where I learned that a boy and a man, answering to the description of Dr. Fietta and Cecil, had breakfasted there, but had gone out again immediately afterwards. The Hydaspes I knew was to coal, and would not leave Malta before one o'clock. My only chance, therefore, was to catch them as they came on board. Until then I could do nothing. At twelve o'clock I went down to the quay and took a boat to the Hydaspes. Seeing no sign of Fietta and the boy on deck, I made my way at once to Lord Kairn's cabin. The door was open and the place in confusion ? every vestige of baggage had disappeared. Absolutely at a loss to divine the cause of this unexpected discovery, I pressed the electric bell. In a moment a steward appeared.
"Has Lord Kairn left the ship?" I asked, my heart beating fast.
"I believe so, sir," replied the man. "I had orders to pack the luggage and send it on shore. It went about an hour ago."
I waited to hear no more. Rushing to my cabin, I began flinging my things pell-mell into my portmanteau. I was full of apprehension at this sudden move of Dr. Fietta's. Calling a steward who was passing to help me, I got my things on deck, and in a few moments had them in a boat and was making rapidly for the shore. I drove back at once to the Grand Hotel in the Strada Reale.
"Did the gentleman who came here to-day from, the Hydaspes, accompanied by a
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