"I have no data," the thin man answered coolly. "In such instance, one begins to twist theories into fact, or facts into theories. I must ask this unemployed, former professional man who has gone through a serious illness and is suffering a more serious addiction to tell me the place and _time_ from which he comes." The surprise stung. "How did you know?" I asked. He gestured with a pale hand. "To maintain a logical approach, I must reject the supernatural. Your arrival, unless hallucinatory--and despite my voluntary use of one drug and my involuntary experiences recently with another, I must accept the evidence of my senses or retire from my profession--your arrival was then super-normal. I might say super-scientific, of a science not of my or the good doctor's time, clearly. Time travel is a familiar folk legend and I have been reading an article by the entertaining Mr. Wells. Perhaps he will expand it into one of his novels of scientific romance." I knew who these two men were, with a tormenting doubt. "But the other--" "Your hands, though unclean, have never seen physical labor. Your cranial construction is of a superior type, or even if you reject my theories, concentration does set the facial features. I judge you have suffered an illness because of the inhibition of your beard growth. Your over-fondness for rum or opium, perhaps, is self-evident. You are at too resilient an age to be so sunk by even an amour. Why else then would you let yourself fall into such an underfed and unsanitary state?" * * * * * He was so smug and so sure, this snowbird. I hated him. Because I couldn't trust to my own senses as he did. "You don't exist," I said slowly, painfully. "You are fictional creations." The doctor flushed darkly. "You give my literary agent too much credit for the addition of professional polish to my works." The other man was filling a large, curved pipe from something that looked vaguely like an ice-skate. "Interesting. Perhaps if our visitor would tell us something of his age with special reference to the theory and practice of temporal transference, Doctor, we would be better equipped to judge whether we exist." There was no theory or practice of time travel. I told them all I had ever heard theorized from Hindu yoga through Extra-sensory Perception to Relativity and the positron and negatron. "Interesting." He breathed out suffocating black clouds of smoke. "Presume that the people of your time by their 'Extra-sensory Perception' have altered the past to make it as they suppose it to be. The great historical figures are made the larger than life-size that we know them. The great literary creations assume reality."