'Tides vary,' Merlin said, suddenly feeling himself on less solid ground. 'Deep tides carry more sediment. Shallow tides less. I suppose.'
'Storms raise high tides. That would explain the occasional thick band. But other than that, the tides on Lecythus are very regular. I know this from my education.'
'Then your education's wrong, I'm afraid. A planet like this, with a large moon . . .' Merlin left the sentence unfinished. 'Spring tides and neap tides, Minla. No arguing with it.'
'I'm sure you're right.'
'Do you want the stone back?' he asked.
'Keep it, if it amuses you.'
He closed his hand around the stone. 'It meant something to you when you gave it to me. It'll always mean something to me for that reason.'
'Thank you for not leaving us. If my stone kept you here, it served a useful purpose.'
'I'm glad I chose to stay. I just hope I haven't done more harm than good, with the things I've shown you.'
'That again,' Minla said, with a weary sigh. 'You worry that we're going to blow ourselves to bits, just because you showed us the clockwork inside the atom.'
'It's nasty clockwork.'
He had seen enough progress, enough evidence of wisdom and independent ingenuity, to know that the Skyland forces would have a working atomic bomb within two years. By then, their rocket programme would have given them a delivery system able to handle the cumbersome payload of that primitive device. Even if the rocket fell behind schedule, they only had to wait until the aerial land mass drifted over a Shadowland target.
'I can't stop you making weapons,' Merlin said. 'All I ask is that you use them wisely. Just enough to negotiate a victory, and then no more. Then forget about bombs and start thinking about atomic rockets.'
Minla looked at him pityingly. 'You worry that we're becoming monsters. Merlin, we already
were
monsters. You didn't make us any worse.'
'That strain of bacterial meningitis was very infectious,' Merlin said. 'I know: I've run it through
Tyrant
's medical analyser. You were already having difficulties with supplies of antibiotics. If I hadn't landed, if I hadn't offered to make that medicine for you, your military effort might have collapsed within months. The Shadowlands would have won by default. There wouldn't be any need to introduce atomic bombs into the world.'
'But we'd still need the rockets.'
'Different technology. The one doesn't imply the other.'
'Merlin, listen to me. I'm sorry that we're asking you to make these difficult moral choices. But for us it's about only one thing: species survival. If you hadn't dropped out of the sky, the Waynet would still be on its way to us, ready to slice our star in two. After you learned that was going to happen, you had no choice but to do everything possible to save us, no matter how bad a taste it leaves in your mouth.'
'I have to live with myself when this is all over.'
'You'll have nothing to be ashamed of. You've made all the right decisions so far. You've given us a future.'
'I need to clear up a few things for you,' Merlin said. 'It isn't a friendly galaxy. The creatures that smashed your sky are still out there. Your ancestors forged the armoured sky to hide from them, to make Lecythus look like an airless world. The Huskers were hunting down my own people before I left to work on my own. It isn't going to be plain sailing.'
'Survival is better than death. Always and for ever.'
Merlin sighed: he knew that this conversation had run its course, that they had been over these things a thousand times already and were no closer to mutual understanding. 'When I wake up again, I want to see lights in the sky.'
'When I was a girl,' Minla said, 'long before you came, my father would tell me stories of people travelling through the void, looking down on Lecythus. He'd put in jokes and little rhymes, things to make me laugh. Under it all, though, he had a serious message. He'd show me the pictures in my books, of the great ship that brought us to Lecythus. He said we'd come from the stars and one day we'd find a way to go back there. It seemed like a fantasy when I was a little girl, something that would never come to pass in the real world. Yet now it's happening, just as my father always said it would. If I live long enough, I'll know what it's like to leave Lecythus behind. But I'll be dead long before we ever reach another world, or see any of the wonders you've known.'
For an instant Minla was a girl again, not a driven military leader. Something in her face spoke to Merlin across the years, breaching the defences he had carefully assembled.
'Let me show you something.'
He took her into
Tyrant
's rear compartment and revealed the matt-black cone of the syrinx, suspended in its cradle. At Merlin's invitation, Minla was allowed to stroke its mirror-smooth surface. She reached out her hand gingerly, as if expecting to touch something very hot or very cold. At the last instant her fingertips grazed the ancient artefact and then held the contact, daringly.
'It feels old,' she said. 'I can't say why.'
'It does. I've often felt the same thing.'
'Old and very heavy. Heavier than it has any right to be. And yet when I look at it, it's somehow not quite there, as if I'm looking at the space where it used to be.'
'That's exactly how it looks to me.'
Minla withdrew her touch. 'What is it?'
'We call it a syrinx. It's not a weapon. It's more like a key or a passport.'
'What does it do?'
'It lets my ship use the Waynet. In their time the Waymakers must have made billions of these things, enough to fuel the commerce of a million worlds. Imagine that, Minla: millions of stars bound by threads of accelerated space-time, each thread strung with thousands of glittering ships rushing to and fro, drops of honey on a thread of silk, each ship moving so close to the speed of light that time itself slowed almost to stillness. You could dine on one world, ride your ship to the Waynet and then take supper on some other world, under the falling light of another sun. A thousand years might have passed while you were riding the flow, but that didn't matter. The Waymakers forged an empire where a thousand years was just a lazy afternoon, a time to put off plans for another day.' Merlin looked sadly at Minla. 'That was the idea, anyway.'
'And now?'
'We breakfast in the ruins, barely remember the glory that was and scavenge space for the handful of still-functioning syrinxes.'
'Could you take it apart, find out how it works?'
'Only if I felt suicidal. The Waymakers protected their secrets very well.'
'Then it is valuable.'
'Incalculably so.'
Minla stroked it again. 'It feels dead.'
'It just isn't active yet. When the Waynet comes closer, the syrinx will sense it. That's when we'll really know it's time to get out of here.' Merlin forced a smile. 'But by then we'll be well on our way.'
'Now that you've shown me this secret, aren't you worried that we'll take it from you?'
'The ship wouldn't let you. And what use would it be to you anyway?'
'We could make our own ship, and use your syrinx to escape from here.'
Merlin tried not to sound too condescending. 'Any ship you built would smash itself to splinters as soon as it touched the Waynet, even with the syrinx to help it. And you wouldn't achieve much anyway. Ships that use the Waynet can't be very large.'
'Why is that?'
Merlin shrugged. 'They don't need to be. If it only takes a day or two of travel to get anywhere - remember what I said about clocks slowing down?' He had given the locals a thorough grounding in relativistic mechanics, although the time-bending consequences were still difficult for some of them to accept. 'You don't need to haul all your provisions with you, even if you're crossing to the other side of the galaxy.'
'But could a bigger ship enter the Waynet, if it had to?'
'The entry stresses wouldn't allow it. It's like riding the rapids.' Merlin didn't wait to see if Minla was following him. 'The syrinx creates a path that you can follow, a course where the river is easier. But you still need a small boat to squeeze around the obstacles.'
'Then no one ever made larger ships, even during the time of the Waymakers?'
'Why would they have needed to?'
'That wasn't my question, Merlin.'
'It was a long time ago. I don't have all the answers. And you shouldn't pin your hopes on the Waynet. It's the thing that's trying to kill you, not save you.'
'But when you leave us . . . you'll ride the Waynet, won't you?'
Merlin nodded. 'But I'll make damned sure I have a head start on the collision.'
'I'm beginning to see how this must all look to you,' Minla said. 'This is the worst thing that's ever happened to us, the end of our history itself. To you it's just a stopover, an incidental adventure. I'm sure there were hundreds of worlds before us, and there'll be hundreds more. That's right, isn't it?'
Merlin bridled. 'If I didn't care about you all, I'd have left twenty years ago.'
'You very nearly did. I know how close you came. My father spoke of it many times, his joy when you changed your mind.'
'I had a change of heart,' Merlin said. 'Everyone's allowed that. You played a part in it, Minla. If you hadn't told Malkoha to give me that gift--'
'Then I'm glad I did, if it meant so much.' Minla looked away, something between sadness and fascination on her face. 'Merlin, before you sleep - do something for me.'
'Yes?'
'Make me flowers again. From some world I'll never ever see. And tell me their story.'
The Planetary Government aircraft was a sleek silver flying wing with its own atomic reactor, feeding six engines buried in air-smoothed nacelles. Minla had already led Merlin down a spiral staircase into an observation cupola set under the thickest part of the wing. Now she touched a brushed-steel panel, causing armoured slats to whisk open in rapid sequence. Through the green-tinted blastproof glass they had an uninterrupted view of the surface rolling by underneath.
The ocean carried no evidence of the war, but there was hardly any stretch of land that hadn't been touched in some fashion. Merlin saw the rubble-strewn remains of towns and cities, some with the hearts gouged out by kilometre-deep craters. He saw flooded harbours, beginning to be clawed back by the greedy fingers of the sea. He saw swathes of grey-brown land where nothing grew any more, and where only dead, petrified forests testified to the earlier presence of living things. Atomic weapons had been used in their thousands, by both sides. The Skylanders had been first, though, which was why the weapons had a special name on Lecythus. Because of the shape of the mushroom cloud that accompanied each burst, they called them Minla's Flowers.
She pointed out the new cities that had been built since the ceasefire. They were depressing to behold: grids of utilitarian blocks, each skull-grey multi-storey building identical to the others. Spidery highways linked the settlements, but not once did Merlin see any evidence of traffic or commerce.
'We're not building for posterity,' she said. 'None of those buildings have to last more than fifty years, and most of them will be empty long before that. By the time they start crumbling, there'll be no one alive on Lecythus.'
'You're surely not thinking of taking everyone with you,' Merlin said.
'Why not? It seemed unthinkable forty years ago. But so did atomic war, and the coming of a single world state. Anything's within our reach now. With social planning, we can organise matters such that the population shrinks to a tenth of its present size. No children will be allowed to be born in the last twenty years. And we'll begin moving people into the Space Dormitories long before that.'
Merlin had seen the plans for the Dormitories, along with the other elements of Minla's evacuation programme. There was already a small space station in orbit around Lecythus, but it would be utterly dwarfed by the hundred Dormitories. The plans called for huge air-filled spheres, each of which would swallow one hundred thousand evacuees, giving a total in-orbit human presence of ten million people. Yet even as the Space Dormitories were being populated, work would be under way on the thousand Exodus Arks that would actually carry the evacuees out of the system. The Arks would be built in orbit, using materials extracted and refined from the moon's crust. Merlin had already indicated to Minla's experts that they could expect to find a certain useful isotope of helium in the topsoil of the moon, an isotope that would enable the Arks to be powered by nuclear fusion engines of an ancient and well-tested design.
'Forced birth control, and mass evacuation,' he said, grimacing. 'That's going to take some tough policing. What if people don't go along with your programme?'
'They'll go along,' Minla said.
'Even if that means shooting a few, to make a point?' 'Millions have already died, Merlin. If it takes a few more to guarantee the efficient execution of the evacuation programme, I see that as a price worth paying.'