Rendezvous with Rama

by Arthur C. Clarke

  Dr Bose could still recall the excitement of that time, when the lost treasures of the Greeks, Romans and a dozen other civilizations were restored to the light of day. That was one of the few occasions when he was sorry to be living on Mars.

  The exobiologist, Carlisle Perera, was another obvious choice; so was Dennis Solomons, the science historian. Dr Bose was slightly less happy about the presence of Conrad Taylor, the celebrated anthropologist, who bad made his reputation by uniquely combining scholarship and eroticism in his study of puberty rites in late twentieth-century Beverley Hills.

  No one, however, could possibly have disputed the right of Sir Lewis Sands to be on the Committee. A man whose knowledge was matched only by his urbanity, Sir Lewis was reputed to lose his composure only when called the Arnold Toynbee of his age.

  The great historian was not present in person; he stubbornly refused to leave Earth, even for so momentous a meeting as this. His stereo image, indistinguishable from reality, apparently occupied the chair to Dr Bose's right; as if to complete the illusion, someone had placed a glass of water in front of him. Dr Bose considered that this sort of technological tour de force was an unnecessary gimmick, but it was surprising how many undeniably great men were childishly delighted to be in two places at once. Sometimes this electronic miracle produced comic disasters; he had been at one diplomatic reception where somebody had tried to walk through a stereogram - and discovered, too late, that it was the real person. And it was even funnier to watch projections trying to shake hands...

  His Excellency the Ambassador for Mars to the United Planets called his wandering thoughts to order, cleared his throat, and said: 'Gentlemen, the Committee is now in session. I think I am correct in saying that this is a gathering of unique talents, assembled to deal with a unique situation. The directive that the Secretary-General has given us is to evaluate that situation, and to advise Commander Norton when necessary.

  This was a miracle of over-simplification, and everyone knew it. Unless there was a real emergency, the Committee might never be in direct contact with Commander Norton - if, indeed, he ever heard of its existence. For the Committee was a temporary creation of the United Planets' Science Organization, reporting through its Director to the Secretary-General. It was true that the Space Survey was part of the UP - but on the Operations, not the Science side. In theory, this should not make much difference; there was no reason why the Rama Committee - or anyone else for that matter - should not call up Commander Norton and offer helpful advice.

  But Deep Space Communications are expensive. Endeavour could be contacted only through PLANETCOM, which was an autonomous corporation, famous for the strictness and efficiency of its accounting. It took a long time to establish a line of credit with PLANETCOM; somewhere, someone was working on this; but at the moment, PLANETCOM's hard-hearted computers did not recognize the existence of the Rama Committee.

  'This Commander Norton,' said Sir Robert Mackay, the Ambassador for Earth. 'He has a tremendous responsibility. What sort of person is he?’

  'I can answer that,' said Professor Davidson, his fingers flying over the keyboard of his memory pad. He frowned at the screenful of information, and started to make an instant synopsis.

  'William Tsien Norton, Born 2077, Brisbane, Oceana. Educated Sydney, Bombay, Houston. Then five years at Astrograd, specializing in propulsion. Commissioned 2102. Rose through usual ranks - Lieutenant on the Third Persephone expedition, distinguished himself during fifteenth attempt to establish base on Venus ... um um - . . exemplary record . . . dual citizenship, Earth and Mars ... wife and one child in Brisbane, wife and two in Port Lowell, with option on third...’

  'Wife?' asked Taylor innocently.

  'No, child of course,' snapped the Professor, before he caught the grin on the other's face. Mild laughter rippled round the table, though the overcrowded terrestrials looked more envious than amused. After a century of determined effort, Earth had still failed to get its population below the target of one billion ...

  .... appointed commanding officer Solar Survey Research Vessel Endeavour. First voyage to retrograde satellites of Jupiter ... um, that was a tricky one.., on asteroid mission when ordered to prepare for this operation ... managed to beat deadline...’

  The Professor cleared the display and looked up at his colleagues.

  'I think we were extremely lucky, considering that he was the only man available at such short notice. We might have had the usual run-of-the-mill captain.' He sounded as if be was referring to the typical peg-legged scourge of the spaceways, pistol in one hand and cutlass in the other.

  'The record--only proves that he's competent,' objected the Ambassador from Mercury (population: i 12,500 but growing). 'How will be react in a wholly novel situation like this?’

  On Earth, Sir Lewis Sands cleared his throat. A second and a half later, he did so on the Moon.

  'Not exactly a novel situation,' he reminded the Hermian, 'even though it's three centuries since it last occurred. If Rama is dead, or unoccupied - and so far all the evidence suggests that it is - Norton is in the position of an archaeologist discovering the ruins of an extinct culture.' He bowed politely to Dr Price, who nodded in agreement. 'Obvious examples are Scbliemann at Troy or Mouhot at Angkor Vat. The danger is minimal, though of course accident can never be completely ruled out.’

  'But what about the booby-traps and trigger mechanisms these Pandora people have been talking about?' asked Dr Price.

  'Pandora?' asked the Hermian Ambassador quickly. 'What's that?’

  'It's a crackpot movement,' explained Sir Robert, with as much embarrassment as a diplomat was ever likely to show, 'which is convinced that Rama is a grave potential danger. A box that shouldn't be opened, you know.' He doubted if the Hermian did know: classical studies were not encouraged on Mercury.

  'Pandora - paranoia,' snorted Conrad Taylor. 'Oh, of course, such things are conceivable, but why should any intelligent race want to play childish tricks?’

  'Well, even ruling out such unpleasantness,' Sir Robert continued, 'we still have the much more ominous possibility of an active, inhabited Rama. Then the situation is one of an encounter between two cultures - at very different technological levels. Pizzaro and the Incas. Peary and the Japanese. Europe and Africa. Almost invariably, the consequences have been disastrous - for one or both parties. I'm not making any recommendations: I'm merely pointing out precedents.’

  'Thank you, Sir Robert,' replied Dr Bose. It was a mild nuisance, he thought, having two 'Sirs' on one small committee; in these latter days, knighthood was an honour which few Englishmen escaped. 'I'm sure we've all thought of these alarming possibilities. But if the creatures inside Rama are - er - malevolent - will it really make the slightest difference what we do?’

  'They might ignore us if we go away.’

  'What - after they've travelled billions of miles and thousands of years?’

  The argument had reached the take-off point, and was now self-sustaining. Dr Bose sat back in his chair, said very little, and waited for the consensus to emerge.

  It was just as he had predicted. Everyone agreed that, once he had opened the first door, it was inconceivable that Commander Norton should not open the second.

  CHAPTER SEVEN - Two Wives

  If his wives ever compared his videograms, Commander Norton thought with more amusement than concern, it would involve him in a lot of extra work. Now, he could make one long 'gram and dupe it, adding only brief- personal messages and endearments before shooting the almost identical copies off to Mars and Earth.

  Of course, it was highly unlikely that his wives ever would do such a thing; even at the concessionary rates allowed to spacemen's families, it would be expensive. And there would be no point in it; his families were on excellent terms with each other, and exchanged- the usual greetings on birthdays and anniversaries. Yet, on -the whole, perhaps it was just as well that the girls had never met, and probably never would. Myrna had been born on Mars and so coul
d not- tolerate the high gravity of Earth. And Caroline hated even the twenty-five minutes of the longest possible terrestrial journey.

  'Sorry I'm a day late with this transmission,' said the Commander after he had finished the general-purpose preliminaries, 'but I've been away from the ship for the last thirty hours, believe it or not. . . 'Don't be alarmed - everything is under control, going perfectly. It's taken us two days, but we're almost through the airlock complex. We could have done it in a couple of hours, if we'd known what we do now. But we took no chances, sent remote cameras ahead, and cycled all the locks a dozen times to make sure they wouldn't seize up behind us - after we'd gone through...

  'Each lock is a simple revolving cylinder with a slot on one side. You go in through this opening, crank the cylinder round a hundred and eighty degrees - and the slot then matches up with another door so that you can step out of it. Or float, in this case.

  'The Ramans really made sure of things. There are three of these cylinder-locks, one after the other just inside the outer hull and below the entry pill-box. I can't imagine how even one would fail, unless someone blew it up with explosives, but if it did, there would be a second back-up, and then a third...

  'And that's only the beginning. The final lock opens into a straight corridor, almost half a kilometre long. It looks clean and tidy, like everything else we've seen; - every few metres there are small ports that probably held lights, but -now everything is completely black and, I don't mind telling you, scary. There are also two parallel slots, about a centimetre wide, cut in the walls and running the whole length of the tunnel. We suspect that some kind of shuttle runs inside these, to tow equipment - or people - back and forth. It would save us a lot of trouble if we could get it working...

  'I mentioned that the tunnel was half a kilometre long. Well, from our seismic soundings we knew that's about the thickness of the shell, so obviously we were almost through it. And at the end of the tunnel we were'nt surprised to find another of those cylindrical airlocks.

  'Yes, and another. And another. These people seem to have done everything in threes. We're in the final lock chamber now, awaiting the OK from Earth before we go through. The interior of Rama is only a few metres away. I'll be a lot happier when the suspense is over.

  'You know Jerry Kirchoff, my Exec, who's got such a library of real books that he can't afford to emigrate from Earth? Well, Jerry told me about a situation just like this, back at the beginning of the twenty-first - no, twentieth century. An archaeologist found the tomb of an Egyptian king, the first one that hadn't been looted by robbers. His workmen took months to dig their way in, chamber by - chamber, until they came to the final wall. Then they broke through the masonry, and he held out a lantern and pushed his head inside. He found himself looking into a whole roomful of treasure - incredible stuff gold and jewels ...

  'Perhaps this place is also a tomb; it seems more and more -likely. Even now, there's still not the slightest sound, or hint of any activity. Well, tomorrow we should know.’

  Commander Norton switched the record to HOLD. What else, he wondered, should he say about the work before he began 'the separate personal messages to his families? Normally, he never went into so much detail, but these circumstances were scarcely normal. This might be the last 'gram he would ever send to those he loved; he owed it to them to explain what he was doing.

  By the time they saw these images, and heard these words, he would be inside Rama - for better or for worse.

  CHAPTER EIGHT - Through the Hub

  Never before had Norton felt so strongly his kinship with that long dead Egyptologist. Not since Howard Carter had first peered into the tomb of Tutankhamen could any man have known a moment such as this - yet the comparison was almost laughably ludicrous.

  Tutankhamen had been buried only yesterday - not even four thousand years ago; Rama might be older than mankind. That little tomb in the Valley of the Kings could have been lost in the corridors through which they had already passed, yet the space that lay beyond this final seal was at least a million times greater. And as for the treasure it might hold - that was beyond imagination.

  No one had spoken over the radio circuits for at least five minutes; the well-trained team had not even reported verbally when all the checks were complete. Mercer had simply given him the OK sign and waved him towards the open tunnel. It was as if everyone realized that this was a moment for History, not to be spoiled by unnecessary small-talk. That suited Commander Norton, for at the moment he too had nothing to say. He flicked on the beam of his flashlight, triggered his jets, and drifted slowly down the short corridor, trailing his safety line behind him. Only seconds later, he was inside.

  Inside what? All before him was total darkness; not a glimmer of light was reflected back from the beam. He bad expected this, but he had not really believed it. All the calculations had shown that the far wall was tens of kilometres away; now his eyes told him that this was indeed the truth. As he drifted slowly into that darkness, he felt a sudden need for the reassurance of his safety line, stronger than any he had ever experienced before, even on his very first EVA. And that was ridiculous; he had looked out across the light-years and the megaparsecs without vertigo; why should he be disturbed by a few cubic kilometres of emptiness?

  He was still queasily brooding over this problem when the momentum damper at the end of the line braked him gently to a halt, with a barely perceptible rebound. He swept the vainly-probing beam of the flashlight down from the nothingness ahead, to examine the surface from which he had emerged.

  He might have been hovering over the centre of a small crater, which was itself a dimple in the base of a much larger one. On either side rose a complex of terraces and ramps - all geometrically precise and obviously artificial - which extended for as far as the beam could reach. About a hundred metres away he could see the exit of the other two airlock systems, identical with this one.

  And that was all. There was nothing particularly exotic or alien about the scene: in fact, it bore a considerable resemblance to an abandoned mine. Norton felt a vague sense of disappointment; after all this effort, there should have been some dramatic, even transcendental revelation. Then he reminded himself that he could see only a couple of hundred metres. The darkness beyond his field of view might yet contain more wonders than he cared to face.

  He reported briefly to his anxiously-waiting companions, then added: 'I'm sending out the flare - two minutes delay. Here goes.' With all his strength, he threw the little cylinder straight upwards - or outwards - and started to count seconds as it dwindled along the beam. Before he had reached the quarter minute it was out of sight; when he had got to a hundred be shielded his eyes and aimed the camera. He had always been good at estimating time; he was only two seconds off when the world exploded with light. And this time there was no cause for disappointment.

  Even the millions of candlepower of the flare could not light up the whole of this enormous cavity, but now he could see enough to grasp its plan and appreciate its titanic scale. He was at one end of a hollow cylinder at least ten kilometres wide, and of indefinite length. From his viewpoint at the central axis he could see such a mass of detail on the curving walls surrounding him that his mind could not absorb more than a minute fraction of it.; he was looking at the landscape of an entire world by a single flash of lightning, and he tried by a deliberate effort of will to freeze the image in his mind.

  All round him, the terraced slopes of the 'crater' rose up until they merged into the solid 'wall that rimmed the sky. No - that impression was false; he must discard the instincts both of earth and of space, and reorientate himself to a new system of coordinates.

  He was not at the lowest point of this strange, insideout world, but the highest. From here, all directions were down, not up. If he moved away from this central axis, towards the curving wall which he must no longer think of as a wall, gravity would steadily increase. When he reached the inside surface of the cylinder, he could stand upright on it at a
ny point, feet towards the stars and head towards the centre of the spinning drum. The concept was familiar enough; since the earliest dawn of spaceflight, centrifugal force had been used to simulate gravity. It was only the scale of this application which was so overwhelming, so shocking. The largest of all spacestations, Syncsat Five, was less than two hundred metres in diameter. It would take some little while to grow accustomed to one a hundred times that size.

  The tube of landscape which enclosed him was mottled with areas of light and shade that could have been forests, fields, frozen lakes or towns; the distance, and the fading illumination of the flare, made identification impossible. Narrow lines that could be highways, canals, or well-trained rivers formed a faintly visible geometrical network; and far along the cylinder, at the very limit of vision, was a band of deeper darkness. It formed a complete circle, ringing the interior of this world, and Norton suddenly recalled the myth of Oceanus, the sea which, the ancients believed, surrounded the Earth.

  Here, perhaps, was an even stranger sea - not circular, but cylindrical. Before it became frozen in the inter- stellar night, did it have waves and tides and currents and fish?

  The flare guttered and died; the moment of revelation was over. But Norton knew that as long as he lived these images would be burned on his mind. Whatever discoveries the future might bring, they could never erase this first impression. And History could never take from him the privilege of being the first of all mankind to gaze upon the works of an alien civilization.

  CHAPTER NINE - Reconnaissance

  'We have now launched five long-delay flares down the axis of the cylinder, and so have a good photo-coverage of its full length. All the main features are mapped; though there are very few that we can identify, we've given them provisional names.