Now it happened that this was just about six weeks before Dr. Holcomb announced his great lecture on the Blind Spot. It was not more than a week after registration. In the time ensuing Fenton became just as great an enthusiast as myself. His idea, of course, was chimerical and a blind; his main purpose was to get in with me where he could argue me out of my folly. He wound up by being a convert of the professor. Then came the great day. The night of the announcement we had a long discussion. It was a deep question. For all of my faith in the professor I was hardly prepared for a thing like this. Strange to say I was the sceptic; and stranger still, it was Hobart who took the side of the doctor. “Why not?” he said. “It merely comes down to this: you grant that a thing is possible and then you deny the possibility of a proof--outside of your abstract. That's good paradox, Harry; but almighty poor logic. If it is so it certainly can be proven. There's not one reason in the world why we can't have something concrete. The professor is right. I am with him. He's the only professor in all the ages.” Well, it turned out as it did. It was a terrible blow to us all. Most of the world took it as a great murder or an equally great case of abduction. There were but few, even in the university, who embraced the side of the doctor. It was a case of villainy, of a couple of remarkably clever rogues and a trusting scholar. But there was one whose faith was not diminished. He had been one of the last to come under the influence of the doctor. He was practical and concrete, and not at all attuned to philosophy; he had not the training for deep dry thinking. He would not recede one whit. One day I caught him sitting down with his head between his hands. I touched him on the shoulder. “What's the deep study?” I asked him. He looked up. By his eyes I could see that his thoughts had been far away. “What's the deep study?” I repeated. “I was just thinking, Harry; just thinking.” “What?” “I was just thinking, Harry, that I would like to have about one hundred thousand dollars and about ten years' leisure.” “That's a nice thought,” I answered; “I could think that myself. What would you do with it?” “Do? Why, there is just one thing that I would do if I had that much money. I would solve the Blind Spot.” This happened years ago while we were still in college. Many things have occurred since then. I am writing this on the verge of disaster. How little do we know! What was the idea that buzzed in the head of Hobart Fenton? He is concrete, physical, fearless. He is in South America. I have cabled to him and expect him as fast as steam can bring him. The great idea and discovery of the professor is a fact, not fiction. What is it? That I cannot answer. I have found it and I am a witness to its potency.