Door Into Summer Read online

  At Yuma I gave up the chase, for Ricky had gotten married. What I saw on the register at the county clerk's office there shocked me so much that I dropped everything and jumped a ship for Denver, stopping only to mail a card to Chuck telling him to clear out my desk and pack the stuff in my room.

  I stopped in Denver just long enough to visit a dental-supply house. I had not been in Denver since it had become the capital-after the Six Weeks War, Miles and I had gone straight to California-and the place stunned me. Why, I couldn't even find Colfax Avenue. I had understood that everything essential to the government was buried back under the Rockies. If that is so, then there must be an awful lot of nonessentials still aboveground the place seemed even more crowded than Great Los Angeles.

  At the dental-supply house I bought ten kilograms of gold, isotope 197, in the form of fourteen-gauge wire. I paid $86.10 a kilogram for it, which was decidedly too much, since gold of engineering quality was selling for around $70 a kilogram, and the transaction mortally wounded my only thousand-dollar bill. But engineering gold comes either in alloys never found in nature, or with isotopes 196 and 198 present, or both, depending on the application. For my purposes I wanted fine gold, undetectable from gold refined from natural ore, and I did not want gold that might burn my pants off if I got cozy with it-the overdose at Sandia had given me a healthy respect for radiation poisoning.

  I wound the gold wire around my waist and went to Boulder. Ten kilograms is about the weight of a well-filled weekend bag and that much gold bulks almost exactly the same as a quart of milk. But the wire form of it made it bulk more than it would have solid; I can't recommend it as a girdle. But gold slugs would have been still harder to carry, and this way it was always with me.

  Dr. Twitchell was still living there, though no longer working; he was professor emeritus and spent most of his waking hours in the bar of the faculty club. It took me four days to catch him in another bar, since the faculty club was closed to outlanders like me. But when I did, it turned out to be easy to buy him a drink.

  He was a tragic figure in the classic Greek meaning, a great man-a very great man-gone to ruin. He should have been up there with Einstein and Bohr and Newton; as it was, only a few specialists in field theory were really aware of the stature of his work. Now when I met him his brilliant mind was soured with disappointment, dimmed with age, and soggy with alcohol. It was like visiting the ruins of what had been a magnificent temple after the roof has fallen in, hail the columns knocked down, and vines have grown over it all.

  Nevertheless, he was brainier on the skids than I ever was at my best. I'm smart enough myself to appreciate real genius when I meet it.

  The first time I saw him he looked up, looked straight at me and said, "You again."

  "Sir?"

  "You used to be one of my students, didn't you?"

  "Why, no, sir, I never had that honor." Ordinarily when people think they have seen me before, I brush it off; this time I decided to exploit it if I could. "Perhaps you are thinking of my cousin, DoctorÄclass of `86. He studied under you at one time."

  "Possibly. What did he major in?"

  "He had to drop out without a degree, sir. But he was a great admirer of yours. He never missed a chance to tell people he had studied under you."

  You can't make an enemy by telling a mother her child is beautiful. Dr. Twitchell let me sit down and presently let me buy him a drink. The greatest weakness of the glorious old wreck was his professional vanity. I had salvaged part of the four days before I could scrape up an acquaintance with him by memorizing everything there was about him in the university library, so I knew what papers he had written, where he had presented them, what earned and honorary degrees he held, and what books he had written. I had tried one of the latter, but I was already out of my depth on page nine, although I did pick up a little patter from it.

  I let him know that I was a camp follower of science myself; right at present I was researching for a book: Unsung Geniuses.

  "What's it going to be about?"

  I admitted diffidently that I thought it would be appropriate to start the book with a popular account of his life and works, provided he would be willing to relax a bit from his well-known habit of shunning publicity. I would have to get a lot of my material from him, of course.

  He thought it was claptrap and could not think of such a thing. But I pointed out that he had a duty to posterity and he agreed to think it over. By the next day he simply assumed that I was going to write his biography-not just a chapter, a whole book. From then on he talked and talked and I took notes... real notes; I did not dare try to fool him by faking, as he sometimes asked me to read back.

  Finally I said, "Doctor, isn't it true that if it had not been for a certain colonel who was once stationed here you would have had the Nobel Prize hands down?"

  He cursed steadily for three minutes with magnificent style. "Who told you about him?"

  "Uh, Doctor, when I was doing research writing for the Department of Defense--I've mentioned that, haven't I?"

  "No."

  "Well, when I was, I heard the whole story from a young Ph.D. working in another section. He had read the report and he said it was perfectly clear that you would be the most famous name in physics today... if you had been permitted to publish your work."

  "Hrrmph! That much is true."

  "But I gathered that it was classified... by order of this Colonel, uh, Plushbottom."

  "Thrushbotham. Thrushbotham, sir. A fat, fatuous, flatulent, foot-kissing fool incompetent to find his hat with it nailed to his head. Which it should have been."

  "It seems a great pity."

  "What is a pity, sir? That Thrushbotham was a fool? That was nature's doing, not mine."

  "It seems a pity that the world should be deprived of the story. I understand that you are not allowed to speak of it."

  "Who told you that? I say what I please~"

  "That was what I understood, sir... from my friend in the Department of Defense."

  "Hrrrmph!"

  That was all I got Out of him that night. It took him a week to decide to show me his laboratory.

  Most of the building was now used by other researchers, but his time laboratory he had never surrendered, even though he did not use it now; he fell back on its classified status and refused to let anyone else touch it, nor had he permitted the apparatus to be torn down. When he let me in, the place smelled like a vault that has not been opened in years.

  He had had just enough drinks not to give a damn, not so many but what he was still steady. His capacity was pretty high. He lectured me on the mathematics of time theory and temporal displacement (he didn't call it "time travel"), but he cautioned me not to take notes. It would not have helped if I had, as he would start a paragraph with, "It is therefore obvious-" and go on from there to matters which may have been obvious to him and God but to no one else.

  When he slowed down I said, "I gathered from my friend that the one thing you had not been able to do was to calibrate it? That you could not tell the exact magnitude of the temporal displacement?"

  "What? Poppycock! Young man, if you can't measure it, it's not science." He bubbled for a bit, like a teakettle, then went on, "Here. I'll show you." He turned away and started making adjustments. All that showed of his equipment was what he called the "temporal locus stage"-just a low platform with a cage around it-and a control board which might have served for a steam plant or a low-pressure chamber. I'm fairly sure I could have studied out how to handle the controls had I been left alone to examine them, but I had been told sharply to stay away from them. I could see an eight-point Brown recorder, some extremely heavy-duty solenoid-actuated switches, and a dozen other equally familiar components, but it didn't mean a thing without the circuit diagrams.

  He turned back to me and demanded, "Have you any change in your pocket?"

  I reached in and hauled out a handful. He glanced at it and selected two five-dollar pieces, mint new, the pretty g
reen plastic hexagonals issued just that year. I could have wished that he had picked half fives, as I was running low.

  "Do you have a knife?"

  "Yes, sir."

  "Scratch your initials on each of them."

  I did so. He then had me place them side by side on the stage. "Note the exact time. I have set the displacement for exactly one week, plus or minus six seconds."

  I looked at my watch. Dr. Twitchell said, "Five...our three... two... one... now."

  I looked up from my watch. The coins were gone. I didn't have to pretend that my eyes bugged out. Chuck had told me about a similar demonstration-but seeing it was another matter.

  Dr. Twitchell said briskly, "We will return here one week from tonight and wait for one of them to reappear. As for the other one-you saw both of them on the stage? You placed them there yourself?"

  "Yes, sir."

  "Where was I?"

  "At the control board, sir." He had been a good fifteen feet from the nearest part of the cage around the stage and had not approached it since.

  "Very well. Come here." I did so and he reached into a pocket. "Here's one of your bits. You'll get the other back a week from now." He handed me a green five-dollar coin; it had my initials on it.

  I did not say anything because I can't talk very well with my jaws sagging loosely. He went on, "Your remarks last week disturbed me. So I visited this place on Wednesday, something I have not done for-oh, more than a year. I found this coin on the stage, so I knew that it had been... would be... using the equipment again. It took me until tonight to decide to demonstrate it to you."

  I looked at the coin and felt it. "This was in your pocket when we came here tonight?"

  "Certainly."

  "But how could it be both in your pocket and my pocket at the same time?"

  "Good Lord, man, have you no eyes to see with? No brain to reason with? Can't you absorb a simple fact simply because it lies outside your dull existence? You fetched it here in your pocket tonight-and we kicked into last week. You saw. A few days ago I found it here. I placed it in my pocket. I fetched it here tonight. The same coin... or, to be precise, a later segment of its space-time structure, a week more worn, a week more dulled-but what the canaille would call the `same' coin. Although no more identical in fact than is a baby identical with the man the baby grows into. Older."

  I looked at it. "Doctor ... push me back in time by a week."

  He stared angrily. "Out of the question!"

  "Why not? Won't it work with people?"

  "Eh? Certainly it will work with people."

  "Then why not do it? I'm not afraid. And think what a wonderful thing it would be for the book... if I could testify of my own knowledge that the Twitchell time displacement works."

  "You can report it of your own knowledge. You just saw it."

  "Yes," I admitted slowly, "but I won't be believed. That business with the coins... I saw it and I believe it. But anyone simply reading an account of it would conclude that I was gullible, that you had hoaxed me with some simple legerdemain."

  "Damn it, sir!"

  "That's what they would say. They wouldn't be able to believe that I actually had seen what I reported. But if you were to ship me back just a week, then I could report of my own knowledge-"

  "Sit down. Listen to me." He sat down, but there was no place for me to sit, although he did not seem aware of it. "I have experimented with human beings long ago. And for that reason I resolved never to do it again."

  "Why? Did it kill them?"

  "What? Don't talk nonsense." He looked at me sharply, added, "You are not to put this in the book."

  "As you say, sir."

  "Some minor experiments showed that living subjects could make temporal displacements without harm. I had confided in a colleague, a young fellow who taught drawing and other matters in the school of architecture. Really more of an engineer than a scientist, but I liked him; his mind was alive. This young chap-it can't hurt to tell you his name: Leonard Vincent-was wild to try it... really try it; he wanted to undergo major displacement, five hundred years. I was weak. I let him."

  "Then what happened?"

  "How should I know? Five hundred years, man! I'll never live to find out."

  "But you think he's five hundred years in the future?"

  "Or the past. He might have wound up in the fifteenth century. Or the twenty-fifth. The chances are precisely even. There's an indeterminacy-symmetrical equations. I've sometimes thought no, just a chance similarity in names."

  I didn't ask what he meant by this because I suddenly saw the similarity, too, and my hair stood on end. Then I pushed it out of my mind; I had other problems. Besides, chance similarity was all it could be-a man could not get from Colorado to Italy, not in the fifteenth century.

  "But I resolved not to be tempted again. It wasn't science, it added nothing to the data, If he was displaced forward, well and good. But if he was displaced backward... then possibly I sent my friend to be killed by savages. Or eaten by wild animals."

  Or even possibly, I thought, to become a "Great White God." I kept the thought to myself. "But you needn't use so long a displacement with me."

  "Let's say no more about it, if you please, sir."

  "As you wish, Doctor." But I couldn't drop it. "Uh, may I make a suggestion?"

  "Eh? Speak up."

  "We could get almost the same result by a rehearsal."

  "What do you mean?"

  "A complete dry run, with everything done just exactly as if you were intending to displace a living subject-I'll act out that part. We'll do everything precisely as if you meant to displace me, right up to the point where you would push that button. Then I'll understand the procedure... which I don't quite, as yet."

  He grumbled a little but he really wanted to show off his toy. He weighed me and set aside metal weights just equal to my hundred and seventy pounds. "These are the same scales I used with poor Vincent."

  Between us we placed them on one side of the stage. "What temporal setting shall we make?" he asked. "This is your show."

  "Uh, you said that it could be set accurately?"

  "I said so, sir. Do you doubt it?"

  "Oh no, no! Well, let's see, this is the twenty-fourth of May-suppose we... how about, uh, say thirty-one years, three weeks, one day, seven hours, thirteen minutes, and twenty-five seconds?"

  "A poor jest, sir. When I said `accurate' I meant `accurate to better than one part in one hundred thousand.' I have had no opportunity to calibrate to one part in nine hundred million."

  "Oh. You see, Doctor, how important an exact rehearsal is to me, since I know so little about it. Uh, suppose we call it thirty-one years and three weeks. Or is that still too finicky?"

  "Not at all. The maximum error should not exceed two hours." He made his adjustments. "You can take your place on the stage."

  "Is that all?"

  "Yes. All but the power. I could not actually make this displacement with the line voltage I used on those coins. But since we aren't actually going to do it, that doesn't matter."

  I looked disappointed and was. "Then you don't actually have what is necessary to produce such a displacement? You were speaking theoretically?"

  "Confound it, sir, I was not speaking theoretically."

  "But if you don't have the power... ?"

  "I can get the power if you insist. Wait." He went to a corner of the lab and picked up a phone. It must have been installed when the lab was new; I hadn't seen one like it since I was awakened. There followed a brisk conversation with the night superintendent of the university's powerhouse. Dr. Twitchell was not dependent on profanity; he could avoid it entirely and be more biting than most real artists can be when using plainer words. "I am not in the least interested in your opinions, my man. Read your instructions. I have full facilities whenever I wish them. Or can you read? Shall we meet with the president at ten tomorrow morning and have him read them to you? Oh? So you can read? Can you write as well? Or
have we exhausted your talents? Then write this down: Emergency full power across the bus bars of the Thornton Memorial Laboratory in exactly eight minutes. Repeat that back."

  He replaced the instrument. "People!"

  He went to the control board, made some changes, and waited. Presently, even from where I stood inside the cage, I could see the long hands of three sets of meters swing across their dials and a red light came on at the top of the board. "Power," he announced.

  "Now what happens?"

  "Nothing."

  "That's just what I thought."

  "What do you mean?"

  "What I said. Nothing would happen."

  "I'm afraid I don't understand you. I hope I don't understand you. What I meant is that nothing would happen unless I closed this pilot switch. If I did, you would be displaced precisely thirty-one years, three weeks."

  "And I still say nothing would happen."

  His face grew dark. "I think, sir, you are being intentionally offensive."

  "Call it what you want to. Doctor, I came here to investigate a remarkable rumor. Well, I've investigated it. I've seen a control board with pretty lights on it; it looks like a set for a mad scientist in a grabbie spectacular. I've seen a parlor trick performed with a couple of coins. Not much of a trick, by the way, since you selected the coins yourself and told me how to mark them; any parlor magician could do better. I've heard a lot of talk. But talk is cheap. What you claim to have discovered is impossible. By the way, they know that down at the department. Your report wasn't suppressed; it's simply filed in the screwball file. They get it out and pass it around now and then for a laugh."

  I thought the poor old boy was going to have a stroke there and then. But I had to stimulate him by the only reflex he had left, his vanity.

  "Come out of there, sir. Come out. I'm going to thrash you. With my bare hands I'm going to thrash you."

  The rage he was in, I think he might have managed it, despite age and weight and physical condition. But I answered, "You don't scare me, Pappy. That dummy button doesn't scare me either. Go ahead and push it."