the best men in London. But someone you must have, and that is final. If you think that I am going to stand here and see you die without either helping you myself or bringing anyone else to help you, then you have mistaken your man.”
“You mean well, Watson,” said the sick man, with something between a sob and a groan. “Shall I demonstrate your own ignorance? What do you know, pray, of Tapanuli fever? What do you know of the black Formosa corruption?’
“I have never heard of either.”
“There are many problems of disease, many strange pathological possibilities, in the East, Watson.” He paused after each sentence to collect his failing strength. “I have learned so much during some recent researches which have a medico-criminal aspect. It was in the course of them that I contracted this complaint. You can do nothing.”
“Possibly not. But I happen to know that Dr. Ainstree, the greatest living authority upon tropical disease, is now in London. All remonstrance is useless, Holmes. I am going this instant to fetch him.” I turned resolutely to the door.
Never have I had such a shock! In an instant, with a tiger-spring, the dying man had intercepted me. I heard the sharp snap of a twisted key. The next moment he had stag-
