The beginnings of the disease were outlined, the symptoms described, and then the physician laid down his notes, and seemed to look directly up at me.

"So far," he said, in suave and measured tones, "I have escaped the Blue Disease, but at any moment I may find myself a victim, and the fact does not disquiet me. For I am convinced that we are witnessing the sudden intrusion and the swift spread of an absolutely harmless organism—one that has been, perhaps, dormant for centuries in the soil, or has evolved to its present form in the deep waters of the Elan watershed by a process whose nature we can only dimly guess at. Some have suggested a meteoric origin, and it is true that some meteoric stones fell over Wales recently. But that is far-fetched to my mind, for how could a white-hot stone harbour living matter? Whatever its origin, it is, I am sure, a harmless thing, and though strange, and at first sight alarming, we need none of us alter our views of life or our way of living. The subject is now open for discussion, and I call on Professor Sarakoff, of Petrograd, the eminent bacteriologist, to give us the benefit of his views, as I believe he has a statement to make."

A burst of applause filled the Hall.

"Good," muttered Sarakoff in my ear. "I will certainly give them my views."

"Be careful," I said idly. Sir Jeremy was gazing round the Hall. Sarakoff stood up and there arose cries for silence. He made a striking figure with his giant stature, his black hair and beard and his blue-stained eyes. Sir Jeremy sat down, smiling blandly.

"Mr. President and Gentlemen," began the Professor, in a voice that carried to every part of the Hall. "I, as an Immortal, desire to make a few simple and decisive statements to you to-night regarding the nature of the Blue Disease, the germ of which was prepared by myself and my friend, Dr. Richard Harden. The germ—in future to be known as the Sarakoff-Harden bacillus—is ultra-microscopical. It grows in practically every medium with great ease. In the human body it finds an admirable host, and owing to the fact that it destroys all other organisms, it confers immortality on the person who is infected by it. We are therefore on the threshold of a new era."

After this brief statement Sarakoff calmly sat down, and absolute silence reigned. Sir Jeremy, still smiling blandly, stared up at him. Every face was turned in our direction. A murmur began, which quickly increased. A doctor behind me leaned over and touched my shoulder.

"Is he sane?" he asked in a whisper.

"Perfectly," I replied.

"But you don't believe him?"