A hostile reading of such a situation might lead to the idea that the discovery by the Culture's Minds that some humans were actually capable of matching and occasionally beating their record for accurately assessing a given set of facts would lead to machine indignation and blown circuits, but this was not the case. It fascinated those Minds that such a puny and chaotic collection of mental faculties could by some sleight of neuron produce an answer to a problem which was as good as theirs. There was an explanation, of course, and it perhaps had something to do with patterns of cause and effect which even the almost god-like power of the Minds had difficulty trying to fathom; it also had quite a lot to do with sheer weight of numbers.
There were in excess of eighteen trillion people in the Culture, just about every one of them well nourished, extensively educated and mentally alert, and only thirty or forty of them had this unusual ability to forecast and assess on a par with a well-informed Mind (of which there were already many hundreds of thousands). It was not impossible that this was pure luck; toss eighteen trillion coins in the air for a while and a few of them are going to keep landing the same side up for a long, long time.
Fal "Ngeestra was a Culture Referer, one of those thirty, maybe forty, out of the eighteen trillion who could give you an intuitive idea of what was going to happen, or tell you why she thought that something which had already happened had happened the way it did, and almost certainly turn out right every time. She was being handed problems and ideas constantly, being both used and assessed herself. Nothing she said or did went unrecorded; nothing she experienced went unnoticed. She did insist, however, that when she was climbing, alone or with friends, she must be left to her own devices and not watched by the Culture's. She would take a pocket terminal with her to record everything, but she would not have a real-time link with any part of the Mind network on the Plate she lived on.
Because of that insistence she had lain in the snow with a shattered leg for a day and a night before a search party had discovered her.
The drone Jase started to give her the details of the flight of the nameless ship from its mother-craft, of its interception and self-destruction. Fal had turned her head, though, and was only half listening. Her eyes and mind were on the distant, snowy slopes, where she hoped she would be climbing again in a few days" time, once these stupid bones in her leg had thoroughly healed.
The mountains were beautiful. There were other mountains on the up slope side of the lodge terrace, reaching into the clear blue sky, but they were tame stuff indeed compared to those sharp, rearing peaks across the plain. She knew that was why they had put her in this lodge; they hoped she would climb those nearer mountains rather than take the trouble to hop into a flyer and head over the plain. It was a silly idea, though; they had to let her see the mountains, or she wouldn't be herself, and as long as she could see them she just had to climb them. Idiots.
On a planet, she thought, You wouldn't be able to see them so well. You wouldn't be able to see the lower foothills, the way the mountains rise from the plain just so.
The lodge, the terrace, the mountains and the plain were on an Orbital. Humans had built this place, or at least built the machines that built the machines that… Well, you could go on and on. The Plate of the Orbital was almost perfectly flat; in fact, vertically it was slightly concave, but as the internal diameter of the completed Orbital — properly formed only once all the individual Plates had been joined up and the last dividing wall was removed — would measure over three million kilometres, the curvature was a great deal less than on the convex surface of any human-habitable globe. So from Fal's raised vantage point she could see right to the base of the distant mountains. Fal thought it must be very strange to live on a planet and have to look over a curve; so that, for example, you would see the top of a seaship appear over the horizon before the rest of it.
She was suddenly aware that she was thinking about planets because of something Jase had just said. She turned round and looked earnestly at the dark grey machine, playing back her short-term memory to recall exactly what it had just said.
"This Mind went underneath the planet in hyperspace?" she said. "Then warped inside?"
"That was what it said it was trying to do when it sent the coded message in its destruct pattern. As the planet is still there it must have succeeded. Had it failed, at least half a per cent of its mass would have reacted with the planet's own material as though it was antimatter."
"I see." Fal scratched at one cheek with a finger. "I thought that wasn't supposed to be possible?" Her voice contained the question. She looked at Jase.
"What?" it said.
"Doing…" She scowled at not being immediately understood and waved one hand impatiently."… Doing what it did. Going under something so big in hyperspace and then bouncing over. I was told even we couldn't do that."
"So was the Mind in question, but it was desperate. The General War Council itself decided that we should try to duplicate the feat, using a similar Mind and a spare planet."
"What happened?" Fal asked, grinning at the idea of a «spare» planet.
"No Mind would even consider the idea; far too dangerous. Even the eligible ones on the War Council demurred."
Fal laughed, gazing up at the red and white flowers curled round the trelliswork overhead. Jase, which deep down was a hopeless romantic, thought her laughter sounded like the tinkling of mountain streams, and always recorded her laughs for itself, even when they were snorts or guffaws, even when she was being rude and it was a dirty laugh. Jase knew a machine, even a sentient one, could not die of shame, but it also knew that it would do just that if Fal ever guessed any of this. Fal stopped laughing. She said:
"What does this thing actually look like? I mean you never see them by themselves, they're always in something… a ship or whatever. And how did it — what did it use to warp with?"
"Externally," Jase said in its usual, calm, measured tones, "it is an ellipsoid. Fields up, it looks like a very small ship. It's about ten metres long and two and a half in diameter. Internally it's made up of millions of components, but the most important ones are the thinking and memory parts of the Mind proper; those are what make it so heavy because they're so dense. It weighs nearly fifteen thousand tonnes. It is fitted with its own power, of course, and several field generators, any of which could be pressed into service as emergency motors, and indeed are designed with this in mind. Only the outer envelope is constantly in real space, the rest — all the thinking parts, anyway — stay in hyperspace.
"Assuming, as we must, that the Mind did what it said it was going to do, there is only one possible way it could have accomplished the task, given that it does not have a warp motor or Displacer." Jase paused as Fal sat forward, her elbows on her knees, her hands clenched under her chin. It saw her shifting her weight on her backside and a tiny grimace appear fleetingly on her face. Jase decided she was getting uncomfortable on the hard stone bench, and ordered one of the lodge drones to bring some cushions. "The Mind does have an internal warping unit, but it is supposed to be used only to expand microscopic volumes of the memory so that there is more space around the sections of information — in the form of third-level elementary particle-spirals — which it wants to change. The normal volume limit on that warping unit is less than a cubic millimetre; somehow the ship Mind jury-rigged it so that it would encompass its entire body and let it appear within the planet's surface. A clear air space would be the logical place to go for, and the tunnels of the Command System seem an obvious choice; that is where it said it would head for."
"Right," Fal said, nodding. "OK. Now, what are — oh…"
A small drone carrying two large cushions appeared at her side. "Hmm, thanks," Fal said, levering herself up with one hand and placing one cushion beneath her, the other at her back. The small drone floated off to the lodge again. Fal settled herself. "Did you ask for these, Jase?" she asked.
"Not me," Jase lied, secretly pleased. "What were you going to a
sk?"
"These tunnels," Fal said, leaning forward more comfortably this time. "This Command System. What is it?"
"Briefly, it consists of a winding, paired loop of twenty-two-metre diameter tunnels buried five kilometres deep. The whole system is several hundred kilometres in length. The trains were designed to be the wartime mobile command centres of a state which once existed on the planet, when it was at the intermediate-sophisticated stage-three phase. State-of-the-art weaponry at the time was the fusion bomb, delivered by transplanetary guided rocket. The Command System was designed to-"
"Yes." Fal waved her hand quickly. "Protect, keep mobile so they couldn't be blown up. Right?"
"Yes."
"What sort of rock cover did they have?"
"Granite," Jase said.
"Batholithic?"
"Just a second," Jase said, consulting elsewhere. "Yes. Correct: a batholith."
"A batholith?" Fal said, eyebrows raised. "Just one?"
"Just one."
"This is a slightly low-G world? Thick crust?"
"Both."
"Uh-huh. So the Mind's inside these…" She looked along the terrace, not really seeing anything, but in her mind's eye looking down kilometres of dark tunnels (and thinking there might be some pretty impressive mountains above them: all that granite; low-G; good climbing territory). She looked at the machine again. "So what happened? It's a Planet of the Dead; did the natives eventually do it to themselves?"
"With biological weapons, not nukes, to the last humanoid, eleven thousand years ago."
"Hmm." Fal nodded. Now it was obvious why the Dra'Azon had made Schar's World one of their Planets of the Dead. If you were a pure-energy superspecies long retired from the normal, matter-based life of the galaxy, and your conceit was to cordon off and preserve the odd planet or two you thought might serve as a fitting monument to death and futility, Schar's World with its short and sordid history sounded like the sort of place you'd put pretty near the top of your list.
Something occurred to her. "How come the tunnels haven't sealed up again over all that time? Five klicks" worth of pressure…"
"We don't know," Jase sighed. "The Dra'Azon have not been very forthcoming with information. It is possible the System's engineers devised a technique for withstanding the pressure over such a period. This is unlikely, admittedly, but then they were ingenious."
"Pity they didn't devote a little more ingenuity to staying alive rather than conducting mass slaughter as efficiently as possible," Fal said, and made a little snorting noise. Jase felt pleasure at the girl's words (if not the snort), but at the same time detected in them a tinge of that mixture of contempt and patronising smugness the Culture found it so difficult not to exhibit when surveying the mistakes of less advanced societies, even though the source civilisations of its own mongrel past had been no less fallible. Still, the underlying point held; experience as well as common sense indicated that the most reliable method of avoiding self-extinction was not to equip oneself with the means to accomplish it in the first place.
"So," Fal said, looking down as she tapped her one good heel on the grey stones, "the Mind's in the tunnels; the Dra'Azon's on the outside. What's the Quiet Barrier limit?"
"The usual half-distance to the nearest other star: three hundred and ten standard light-days in the case of Schar's World at the moment."
"— And…?" She held out her hand to Jase and raised her head and her eyebrows. Flower shadows moved on her neck as the gentlest of breezes started and ruffled the blossoms on the trelliswork above her head. "What's the problem?"
"Well," Jase said, "the reason the Mind was allowed in at all was because-"
"In distress. Right. Go on."
Jase, who had stopped being annoyed by Fal's interruptions the first time she had brought it a mountain flower, went on, "There is a small base on Schar's World, as there is on almost all the Planets of the Dead. As usual it is staffed from a small, nominally neutral, non-dynamic society of some galactic maturity-"
"The Changer," Fal broke in, quite slowly, as though guessing the answer to a puzzle which had been troubling her for hours and ought to have been simple. She looked through the flower-strewn trellis, to a blue sky where a few small white clouds were moving slowly. She looked back to the machine. "I'm right, aren't I? That Changer guy who… and that Special Circumstancer — Balveda — and the place where you have to be senile to rule. They're Changers on Schar's World and this bloke-" She broke off and frowned. "But I thought he was dead."
"Now we're not so sure. The last message from the GCU Nervous Energy seemed to indicate he might have escaped."
"What happened to the GCU?"
"We don't know. Contact was lost while it was trying to capture rather than destroy the Idiran ship. Both are presumed lost."
"Capture it, eh?" Fal said tartly. "Another show-off Mind. But that's it, isn't it? The Idirans might be able to use this guy — what's his name? Do we know?"
"Bora Horza Gobuchul."
"Whereas we don't have any Changers."
"We do, but the one we have is on the other side of the galaxy on an urgent job not connected with the war; it would take half a year to get her there. Besides, she has never been to Schar's World; the tricky part about this problem is that Bora Horza Gobuchul has."
"Ho-ho," Fal said.
"In addition, we have unconfirmed information that the same Idiran fleet which knocked out the fleeing ship also tried unsuccessfully to follow the Mind to Schar's World with a small landing force. Thus the Dra'Azon concerned is going to be suspicious. It might let Bora Horza Gobuchul through, as he has served before with the caretaker staff on the planet, but even he is not certain to gain entry. Anybody else is very doubtful indeed."
"Of course the poor devil might be dead."
"Changers are not notoriously easy to kill, and besides, it would seem unwise simply to count on that possibility."
"And you're worried he might get to this precious Mind and bring it back to the Idirans."
"It could just happen."
"Just supposing it did happen, Jase," Fal said, screwing up her eyes and leaning forward to look at the machine, "so what? Would it really make any difference? What would happen if the Idirans did get their hands on this admittedly resourceful kid Mind?"
"Assuming that we are going to win the war…" Jase said thoughtfully, "… it could lengthen the proceedings by a handful of months."
"And how many's that supposed to be?" Fal said.
"Somewhere between three and seven, I suppose. It depends whose hand you're using."
Fal smiled. "And the problem is that the Mind can't destruct without making this Planet of the Dead even more dead than it is already, in fact without making it an asteroid belt."
"Exactly."
"So maybe the little devil shouldn't have bothered saving itself from the wreck in the first place, and should have just gone down with the ship."
"It's called the instinct to survive." Jase paused while Fal nodded, then it went on, "It's programmed into most living things." It made a show of weighing the girl's injured leg in its field-held grip. "Though, of course, there are always exceptions…"
"Yes," Fal said, giving what she hoped was a condescending smile, "very droll, Jase."
"So you see the problem."
"I see the problem," Fal agreed. "Of course we could force our way in there, and blow the place to smithereens if necessary, and to hell with the Dra'Azon." She grinned.
"Yes," Jase conceded, "and put the whole outcome of the war in jeopardy by antagonising a power whose haziest unknown quantity is the exact extent of its immensity. We could also surrender to the Idirans, but I doubt we'll do that either."
"Well, so long as we're considering all the options." Fal laughed.
"Oh yes."
"OK, Jase, if that's all — let me think about this lot for a while," Fal "Ngeestra said, sitting up straight on the bench and stretching and yawning. "It sounds interesting." She shook her he
ad. "This is lap-of-the-gods stuff, though. Let me have… anything you think might be relevant. I'd like to concentrate on this bit of the war for a while; all the information we've got on the Sullen Gulf… all I can handle, anyway. OK?"
"OK," Jase said.
"Hmm," Fal murmured, nodding vaguely, her eyes unfocused. "Yes… all we've got on that general area… I mean volume…" She waved her hand round in a circle, in her imagination encompassing several million cubic light-years.
"Very well," Jase said, and retreated slowly from the girl's gaze. It floated back down the terrace in the shafts of sunlight and shade, towards the lodge, under the flowers.
The girl sat by herself, rocking backwards and forwards on her haunches and humming quietly, her hands at her mouth again and her elbows on her knees, one of which was bent, and one of which was straight.
Here we are, she thought, killing the immortal, only just stopping short of tangling with something most people would think of as a god, and here am I, eighty thousand light-years away if I'm a metre, supposed to think of a way out of this ridiculous situation. What a joke… Damn. I wish they'd let me be a Field Referer, out there where the action is, instead of sitting it out back here, so far away it takes two years just to get there. Oh well.
She shifted her weight and sat sideways on the seat so that her broken leg lay along the bench, then turned her face to the mountains glittering on the far side of the plain. She rested her elbow on the stone parapet, her hand supporting her head as her eyes drank in the view.
She wondered whether they really had kept their word about not watching her when she went climbing. She wouldn't put it past them to have kept a small drone or micromissile or something near by, just in case anything did happen, and then — after the accident, after she'd fallen — left her lying there, frightened, cold and in pain, just to convince her they were doing no such thing, and to see the effect it had on her, as long as she wasn't in any real danger of dying. She knew, after all, the way their Minds worked. It was the sort of thing she would consider doing, if she was in charge.
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