The Astounding Science Fiction Anthology

by John W. Campbell Jr.

  The skipper’s eyes turned to Tommy Dort.

  “We’ve hooked up some machinery,” said Tommy, “that amounts to a mechanical translator. We have vision plates, of course, and then shortwave beams direct. They use frequency-modulation plus what is probably variation in wave forms—like our vowel and consonant sounds in speech. We’ve never had any use for anything like that before, so our coils won’t handle it, but we’ve developed a sort of code which isn’t the language of either set of us. They shoot over short-wave stuff with frequency-modulation, and we record it as sound. When we shoot it back, it’s reconverted into frequency-modulation.”

  The skipper said, frowning:

  “Why wave-form changes in short waves? How do you know?”

  “We showed them our recorder in the vision plates, and they showed us theirs. They record the frequency-modulation direct. I think,” said Tommy carefully, “they don’t use sound at all, even in speech. They’ve set up a communications room, and we’ve watched them in the act of communicating with us. They make no perceptible movement of anything that corresponds to a speech organ. Instead of a microphone, they simply stand near something that would work as a pick-up antenna. My guess, sir, is that they use microwaves for what you might call person-to-person conversation. I think they make short-wave trains as we make sounds.”

  The skipper stared at him:

  “That means they have telepathy?”

  “M-m-m. Yes, sir,” said Tommy. “Also it means that we have telepathy too, as far as they are concerned. They’re probably deaf. They’ve certainly no idea of using sound waves in air for communication. They simply don’t use noises for any purpose.”

  The skipper stored the information away.

  “What else?”

  “Well, sir,” said Tommy doubtfully, “I think we’re all set. We agreed on arbitrary symbols for objects, sir, by way of the visiplates, and worked out relationships and verbs and so on with diagrams and pictures. We’ve a couple of thousand words that have mutual meanings. We set up an analyzer to sort out their short-wave groups, which we feed into a decoding machine. And then the coding end of the machine picks out recordings to make the wave groups we want to send back. When you’re ready to talk to the skipper of the other ship, sir, I think we’re ready.”

  “H-m-m. What’s your impression of their psychology?” The skipper asked the question of the psychologist.

  “I don’t know, sir,” said the psychologist harassedly. “They seem to be completely direct. But they haven’t let slip even a hint of the tenseness we know exists. They act as if they were simply setting up a means of communication for friendly conversation. But there is… well…an overtone—”

  The psychologist was a good man at psychological mensuration, which is a good and useful field. But he was not equipped to analyze a completely alien thought-pattern.

  “If I may say so, sir—” said Tommy uncomfortably.

  “What?”

  “They’re oxygen breathers,” said Tommy, “and they’re not too dissimilar to us in other ways. It seems to me, sir, that parallel evolution has been at work. Perhaps intelligence evolves in parallel lines, just as… well… basic bodily functions. I mean,” he added conscientiously, “any living being of any sort must ingest, metabolize, and excrete. Perhaps any intelligent brain must perceive, apperceive, and find a personal reaction. I’m sure I’ve detected irony. That implies humor, too. In short, sir, I think they could be likable.”

  The skipper heaved himself to his feet.

  “H-m-m.” He said profoundly, “We’ll see what they have to say.”

  He walked to the communications room. The scanner for the vision plate in the robot was in readiness. The skipper walked in front of it. Tommy Dort sat down at the coding machine and tapped at the keys. Highly improbable noises came from it, went into a microphone, and governed the frequency-modulation of a signal sent through space to the other spaceship. Almost instantly the vision screen which with one relay—in the robot—showed the interior of the other ship lighted up. An alien came before the scanner and seemed to look inquisitively out of the plate. He was extraordinarily manlike, but he was not human. The impression he gave was of extreme baldness and a somehow humorous frankness.

  “I’d like to say,” said the skipper heavily, “the appropriate things about this first contact of two dissimilar civilized races, and of my hopes that a friendly intercourse between the two peoples will result.”

  Tommy Dort hesitated. Then he shrugged and tapped expertly upon the coder. More improbable noises.

  The alien skipper seemed to receive the message. He made a gesture which was wryly assenting. The decoder on the Llanvabon hummed to itself and word-cards dropped into the message frame. Tommy said dispassionately:

  “He says, sir, ‘That is all very well, but is there any way for us to let each other go home alive? I would be happy to hear of such a way if you can contrive one. At the moment it seems to me that one of us must be killed.’”

  III.

  The atmosphere was of confusion. There were too many questions to be answered all at once. Nobody could answer any of them. And all of them had to be answered.

  The Llanvabon could start for home. The alien ship might or might not be able to multiply the speed of light by one more unit than the Earth vessel. If it could, the Llanvabon would get close enough to Earth to reveal its destination—and then have to fight. It might or might not win. Even if it did win, the aliens might have a communication system by which the Llanvabon’s destination might have been reported to the aliens’ home planet before battle was joined. But the Llanvabon might lose in such a fight. If she was to be destroyed, it would be better to be destroyed here, without giving any clue to where human beings might be found by a forewarned, forearmed alien battle fleet.

  The black ship was in exactly the same predicament. It, too, could start for home. But the Llanvabon might be faster, and an overdrive field can be trailed, if you set to work on it soon enough. The aliens, also, would not know whether the Llanvabon could report to its home base without returning. If the alien was to be destroyed, it also would prefer to fight it out here, so that it could not lead a probable enemy to its own civilization.

  Neither ship, then, could think of flight. The course of the Llanvabon into the nebula might be known to the black ship, but it had been the end of a logarithmic curve, and the aliens could not know its properties. They could not tell from that from what direction the Earth ship had started. As of the moment, then, the two ships were even. But the question was and remained, “What now?”

  There was no specific answer. The aliens traded information for information—and did not always realize what information they gave. The humans traded information for information—and Tommy Dort sweated blood in his anxiety not to give any clue to the whereabouts of Earth.

  The aliens saw by infrared light, and the vision plates and scanners in the robot communication-exchange had to adapt their respective images up and down an optical octave each, for them to have any meaning at all. It did not occur to the aliens that their eyesight told that their sun was a red dwarf, yielding light of greatest energy just below the part of the spectrum visible to human eyes. But after that fact was realized on the Llanvabon, it was realized that the aliens, also, should be able to deduce the Sun’s spectral type by the light to which men’s eyes were best adapted.

  There was a gadget for the recording of short-wave trains which was as casually in use among the aliens as a sound-recorder is among men. The humans wanted that, badly. And the aliens were fascinated by the mystery of sound. They were able to perceive noise, of course, just as a man’s palm will perceive infrared light by the sensation of heat it produces, but they could no more differentiate pitch or tone-quality than a man is able to distinguish between two frequencies of heat-radiation even half an octave apart. To them, the human science of sound was a remarkable discovery. They would find uses for noises which humans had never imagined—if they lived.
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  But that was another question. Neither ship could leave without first destroying the other. But while the flood of information was in passage, neither ship could afford to destroy the other. There was the matter of the outer coloring of the two ships. The Llanvabon was mirror-bright exteriorly. The alien ship was dead-black by visible light. It absorbed heat to perfection, and should radiate it away again as readily. But it did not. The black coating was not a “black body” color or lack of color. It was a perfect reflector of certain infrared wave lengths while simultaneously it fluoresced in just those wave bands. In practice, it absorbed the higher frequencies of heat, converted them to lower frequencies it did not radiate—and stayed at the desired temperature even in empty space.

  Tommy Dort labored over his task of communications. He found the alien thought-processes not so alien that he could not follow them. The discussion of technics reached the matter of interstellar navigation. A star map was needed to illustrate the process. It would have been logical to use a star map from the chart room—but from a star map one could guess the point from which the map was projected. Tommy had a map made specially, with imaginary but convincing star images upon it. He translated directions for its use by the coder and decoder. In return, the aliens presented a star map of their own before the visiplate. Copied instantly by photograph, the Nav officers labored over it, trying to figure out from what spot in the galaxy the stars and Milky Way would show at such an angle. It baffled them.

  It was Tommy who realized finally that the aliens had made a special star map for their demonstration too, and that it was a mirror-image of the faked map Tommy had shown them previously.

  Tommy could grin, at that. He began to like these aliens. They were not human, but they had a very human sense of the ridiculous. In course of time Tommy essayed a mild joke. It had to be translated into code numerals, these into quite cryptic groups of short-wave, frequency-modulated impulses, and these went to the other ship and into heaven knew what to become intelligible. A joke which went through such formalities would not seem likely to be funny. But the aliens did see the point.

  There was one of the aliens to whom communication became as normal a function as Tommy’s own code-handlings. The two of them developed a quite insane friendship, conversing by coder, decoder and short-wave trains. When technicalities in the official messages grew too involved, that alien sometimes threw in strictly nontechnical interpolations akin to slang. Often, they cleared up the confusion. Tommy, for no reason whatever, had filed a code-name of “Buck” which the decoder picked out regularly when this particular operator signed his own symbol to a message.

  In the third week of communication, the decoder suddenly presented Tommy with a message in the message frame.

  You are a good guy. It is too bad we have to kill each other.—Buck.

  Tommy had been thinking much the same thing. He tapped off the rueful reply:

  We can’t see any way out of it. Can you?

  There was a pause, and the message frame filled up again.

  If we could believe each other, yes. Our skipper would like it. But we can’t believe you, and you can’t believe us. We’d trail you home if we got a chance, and you’d trail us. But we feel sorry about it.—Buck.

  Tommy Dort took the messages to the skipper. “Look here, sir!” he said urgently. “These people are almost human, and they’re likable cusses.”

  The skipper was busy about his important task of thinking things to worry about, and worrying about them. He said tiredly:

  “They’re oxygen breathers. Their air is twenty-eight per cent oxygen instead of twenty, but they could do very well on Earth. It would be a highly desirable conquest for them. And we still don’t know what weapons they’ve got or what they can develop. Would you tell them how to find Earth?”

  “N-no,” said Tommy, unhappily.

  “They probably feel the same way,” said the skipper dryly. “And if we did manage to make a friendly contact, how long would it stay friendly? If their weapons were inferior to ours, they’d feel that for their own safety they had to improve them. And we, knowing they were planning to revolt, would crush them while we could—for our own safety! If it happened to be the other way about, they’d have to smash us before we could catch up to them.”

  Tommy was silent, but he moved restlessly.

  “If we smash this black ship and get home,” said the skipper, “Earth Government will be annoyed if we don’t tell them where it came from. But what can we do? We’ll be lucky enough to get back alive with our warning. It isn’t possible to get out of those creatures any more information than we give them, and we surely won’t give them our address! We’ve run into them by accident. Maybe—if we smash this ship—there won’t be another contact for thousands of years. And it’s a pity, because trade could mean so much! But it takes two to make a peace, and we can’t risk trusting them. The only answer is to kill them if we can, and if we can’t, to make sure that when they kill us they’ll find out nothing that will lead them to Earth. I don’t like it,” added the skipper tiredly, “but there simply isn’t anything else to do!”

  IV.

  On the Llanvabon, the technicians worked frantically in two divisions. One prepared for victory, and the other for defeat. The ones working for victory could do little. The main blasters were the only weapons with any promise. Their mountings were cautiously altered so that they were no longer fixed nearly dead ahead, with only a 5° traverse. Electronic controls which followed a radio-locator master-finder would keep them trained with absolute precision upon a given target regardless of its maneuverings. More; a hitherto unsung genius in the engine room devised a capacity-storage system by which the normal full-output of the ship’s engines could be momentarily accumulated and released in surges of stored power far above normal. In theory, the range of the blasters should be multiplied and their destructive power considerably stepped up. But there was not much more that could be done.

  The defeat crew had more leeway. Star charts, navigational instruments carrying telltale notations, the photographic record Tommy Dort had made on the six months’ journey from Earth, and every other memorandum offering clues to Earth’s position, were prepared for destruction. They were put in sealed files, and if any one of them was opened by one who did not know the exact, complicated process, the contents of all the files would flash into ashes and the ashes be churned past any hope of restoration. Of course, if the Llanvabon should be victorious, a carefully not-indicated method of reopening them in safety would remain.

  There were atomic bombs placed all over the hull of the ship. If its human crew should be killed without complete destruction of the ship, the atomic-power bombs should detonate if the Llanvabon were brought alongside the alien vessel. There were no ready-made atomic bombs on board, but there were small spare atomic-power units on board. It was not hard to trick them so that when they were turned on, instead of yielding a smooth flow of power they would explode. And four men of the earth ship’s crew remained always in spacesuits with closed helmets, to fight the ship should it be punctured in many compartments by an unwarned attack.

  Such an attack, however, would not be treacherous. The alien skipper had spoken frankly. His manner was that of one who wryly admits the uselessness of lies. The skipper and the Llanvabon, in turn, heavily admitted the virtue of frankness. Each insisted—perhaps truthfully—that he wished for friendship between the two races. But neither could trust the other not to make every conceivable effort to find out the one thing he needed most desperately to conceal—the location of his home planet. And neither dared believe that the other was unable to trail him and find out. Because each felt it his own duty to accomplish that unbearable—to the other—act, neither could risk the possible extinction of his race by trusting the other. They must fight because they could not do anything else.

  They could raise the stakes of the battle by an exchange of information beforehand. But there was a limit to the stake either would put up. No infor
mation on weapons, population, or resources would be given by either. Not even the distance of their home bases from the Crab Nebula would be told. They exchanged information, to be sure, but they knew a battle to the death must follow, and each strove to represent his own civilization as powerful enough to give pause to the other’s ideas of possible conquest—and thereby increased its appearance of menace to the other, and made battle more unavoidable.

  It was curious how completely such alien brains could mesh, however. Tommy Dort, sweating over the coding and decoding machines, found a personal equation emerging from the at first stilted arrays of word-cards which arranged themselves. He had seen the aliens only in the vision screen, and then only in light at least one octave removed from the light they saw by. They, in turn, saw him very strangely, by transposed illumination from what to them would be the far ultraviolet. But their brains worked alike. Amazingly alike. Tommy Dort felt an actual sympathy and even something close to friendship for the gill-breathing, bald, and dryly ironic creatures of the black space vessel.

  Because of that mental kinship he set up—though hopelessly—a sort of table of the aspects of the problem before them. He did not believe that the aliens had any instinctive desire to destroy man. In fact, the study of communications from the aliens had produced on the Llanvabon a feeling of tolerance not unlike that between enemy soldiers during a truce on Earth. The men felt no enmity, and probably neither did the aliens. But they had to kill or be killed for strictly logical reasons.

  Tommy’s table was specific. He made a list of objectives the men must try to achieve, in the order of their importance. The first was the carrying back of news of the existence of the alien culture. The second was the location of that alien culture in the galaxy. The third was the carrying back of as much information as possible about that culture. The third was being worked on but the second was probably impossible. The first—and all—would depend on the result of the fight which must take place.