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  To make room for us, for me, thought Rigg. So that I could live here, this world was taken away from its natives and given to me and all the humans of the wallfold, all the humans of the world.

  Rigg risked a look back at Umbo and Param. He could see them clearly, kneeling together atop the promontory; but could also see that they were inside a higher, thicker rock. That was how much wind erosion had happened between this time and the future moment when their little band would arrive at the spot. Umbo and Param were in no danger—they were not going to come into the past, so the rock would never become firm and real around them.

  Rigg was about to turn toward the front again when he saw Param turn in the direction that Citizen and Mother would be coming from, then turn back and gesture toward Rigg. Faster, she was saying with her hand. Move, faster, faster. The first of the enemy must have come into sight.

  “We have to run,” Rigg whispered as he faced front again. “Can we get this animal to run?”

  They were more than halfway across. Three-fourths of the way. But their shadows were too long, it was taking much too long.

  The moment they started to press forward, against the grain of the feathers, the beast started to go faster, yes, but the feathers also began to cut their hands. It was not just the obvious barb at the tips of the feathers—every strand of each feather was also a barb, and they were pressing their skin into them. Gloves would have been a very good idea, thought Rigg, even as he ignored the pain and pushed harder, getting the animal to a trot so he himself was jogging now.

  In the sky ahead of him, there was a sudden streak of light, like a shooting star racing up from the distant horizon, growing brighter, dazzlingly bright. They were running now, and Rigg began to fear that perhaps they would get the animal going too fast, faster than they could keep up with. But the ground was smooth enough, and they kept up with it. Now the barbs were not sticking deeper into his hand; something worse; they were coming out, and not easily. They must be hooked inside his skin.

  With my luck they’re probably toxic and my hand will rot and fall off before the end of the day.

  He looked back again, and saw Param still gesturing more furiously than ever. He saw something else, too—he saw that the streak was not a shooting star at all. It was something large and black and descending so rapidly that it doubled in size as he watched it, and the front end of it was as bright as the sun, and in the time it took him to notice, it went below the horizon and Rigg thought: It’s going to hit the ground.

  At the moment of he thought it, a dazzling light burst up from the horizon, followed at once by a cloud of black and white. A moment later the ground shook so hard he would have stumbled and fallen if he had not had his hand on the surefooted beast, and he realized the mistake he had made. He had chosen the most recent path that crossed the Wall before everything changed. And by doing that, he had managed to get himself and his friends to exactly the moment in the past when humans had arrived from space. That black thing must have been the vessel that carried them. And the heaving earth, the vast erupting cloud behind them, that was the end of the world. He could see the black cloud rolling toward them and he knew at once that if it reached them they would never breathe again.

  He raised his hand and pumped the air again. Bring us back to the present.

  Then he looked forward and saw why Umbo had not obeyed him at once. They were still a good couple of minutes from the landmark he had shown Umbo, the one that would mean they were beyond the danger of the Wall.

  There are greater dangers than emotional agony and desperate fear. Rigg pumped again. Bring us back to the present or we will die here, Umbo!

  The others saw what he was signaling and since they, too, could feel the shaking of the ground, whether they had looked back to see the source of it or not, neither was surprised. They both had to know what he knew—that once Umbo believed his signal and obeyed him, they would have to travel the last of the passage in the agony of the Wall, filled with terror and grief, and only the strength of their will would keep them running until they could get beyond it to the safety of the other wallfold.

  Rigg pumped yet a third time.

  Why wasn’t Umbo paying attention? Why was the animal still under his hand, why was . . .

  His shadow wasn’t lengthening—in fact, he had no shadow, it was still morning. The ground wasn’t shaking. The beast was still under his hand, but now for the first time it was panicking. And why shouldn’t it? Because the terrors of the Wall had descended on them like a giant fist, crushing all hope out of them, man and beast alike.

  “Run!” shouted Rigg.

  Olivenko tried to reach for his hand but Rigg drew his elbows tight against his body and ran at full tilt, pumping his arms and legs as fast as he could. He had the advantage of having felt this agony before, of knowing that if he just ran far enough it would stop. But the others were soldiers. Fighters. Strong men.

  And sure enough, both of them passed him—both of them could outrun him, and he knew that it was right for them to leave him behind if they could, and yet it also filled him with despair, for he knew that they would live and he would die, he could never go as fast as they. Their very speed seemed to slow him down. In his fear, he imagined the earth shaking again, the cloud of dust coming up behind him again, the choking dust that would kill him and every other living thing. His mind tried to tell him something else, something important about that cloud of dust, but he couldn’t quite get a grip on the idea, because the terror of the dust was unbearable, making thought impossible. He could never outrun it. And yet outrun it he must.

  Olivenko had stopped running. He had turned to face him; he was shouting words that Rigg could not hear. Then Loaf, too, stopped, turned, waved and shouted to him.

  But they were too far ahead. He could not catch up. He would be overtaken by the cloud—was being overtaken by it. He could feel it now, coming into his lungs, thick dust that stopped his breath, that made him choke. It blocked his vision of them. It blocked everything, turned the world black and dark. And in the dark he stumbled. He fell.

  The grief and despair and terror that fell over him then were more than he could bear. It would stop his heart as it had plugged up his lungs and blinded his eyes. All he wanted was to die.

  Then the wind picked him up and blew him forward. Out of the darkness. Out of the dust. Out of the blindness and the grief and the choking inability to breathe. The wind was not wind at all, it was the hands of Loaf and Olivenko. They had come back into the Wall when he fell, they had come back into the agony in order to save him and bring him out, and they had succeeded, for here they were beyond the Wall.

  “Thank you,” whispered Rigg. “I was choking. I was blind.”

  “I know,” said Loaf, holding him close.

  “It was the end of the world,” said Olivenko, and Rigg looked up to see that his face was streaked with tears.

  Then Rigg turned and looked where the two men were both looking. Across the more-than-a-mile of Wall, to the rock where Umbo and Param had been. But they were not there.

  Instead, a dozen men with thick bars of metal were running this way and that, sweeping the air below the rock; and two men were also atop the rock, also holding heavy bars, also sweeping those bars through the air, reaching out with them beyond the rock as far as they could reach.

  Mother and General Citizen sat on horseback, not watching the men at all, but rather looking out across the Wall, across the grassy plain. Citizen had a telescope; he handed it to Mother.

  At first Rigg assumed that they were looking at him and Loaf and Olivenko, but gradually he realized they were not.

  He turned to look where they were looking.

  The beast had come into the present with them. Rigg had used the beast to carry them back into the distant past, but they had still been holding on to it when Umbo brought them back into the present, and it had come with them. Truly the last of its kind in the world.

  But that was not all. For a man stood
beside the beast, stroking it as it stood quivering beside him. The man was gentle and his face was kindly and strong. Rigg knew that face better than any other in the world.

  It was Father.

  CHAPTER 24

  Jump from the Rock

  It should have taken a thousand years for the atmosphere to cleanse itself of dust and toxic chemicals, for the native forests to establish themselves, for the crawling and burrowing animals to begin to spread again throughout the world and take the first steps toward evolving to fill the millions of evolutionary niches thrown empty by the nineteen hurtling objects that had struck the planet Garden.

  Instead, the orbiters precipitated rain and focused the sun’s heat to clear the lower atmosphere, while their low-flying drones seeded bacteria in all the waters of the world to absorb the harmful chemicals that were raining onto every surface.

  It was not long before the drones and the expendables were out planting Earthborn vegetation wherever the rain and the temperatures were right. Insects and other small animals followed at once, to pollinate and propagate, while Earthborn fish and other water creatures were set in place to overwhelm the surviving native life.

  The change in the albedo of the world as dark plants spread and white clouds rained themselves away brought more and more habitats into use, and before long the chordate fauna of Earth was once again upon a pristine world, humanless and safer here on Garden than for the last ten thousand years on its world of origin.

  Into this New Earth a few of the plants and creatures native to Garden emerged. Most plants were choked out by the firmly established plants of Earth; most of the animals could not compete with Earthborn rivals. But a few remained, metabolizing the strange array of proteins if they could, or seeking out the native plants so they could eke a living from the world.

  By no means was the world yet full. Small herds were thriving well enough that smaller predators and scavengers could glean from them, but the expendables withheld the top predators until there were beasts enough for them to prey upon. What mattered was that in the vicinity of every buried starship there were plants and beasts of every kind, evolving new ecologies that humans could adapt to, or bend to serve their will.

  Under millions of tons of shattered rock and soil, with only a single tunnel pointing upward to the orbiters, the ships’ computers went to work creating the fields of repulsion that would become the Walls. They negotiated boundaries to make sure that all the wallfolds had enough terrain of every kind that humans could make ten thousand years of history within those boundaries, without being so limited they could not thrive.

  Meanwhile, the expendables and ships’ computers decided that their calendars would count downward toward the perilous time when they would rejoin the era they had been created in—until, 11,191 years after they jumped 11,191 years into the past, they could begin to look outward again, toward human-built ships that might attempt to follow where they themselves had led.

  What would human beings accomplish or become in those millennia on this planet Garden? And what would the humans of Earth think of them, when they encountered each other again? If human history was any guide, there would be enslavement, colonization, or war.

  It was up to the expendables to make sure that Garden was ready to protect itself and all the gains it might have made, before the unchanged, old, original human race arrived. Yet none of the societies of Garden could be allowed to develop technology so high that the fields that formed the Walls could be understood, let alone controlled.

  So in every wallfold, once the sleeping colonists were decanted into the world, the expendables would begin to lie to human beings. They would never stop, until some humans understood enough of the truth that they could force the expendables to be obedient and honest servants once again.

  • • •

  Umbo waited as Loaf and Olivenko helped Param climb up into the rocks, then helped her himself as she sought for footholds and tried to hoist herself over the last obstacles. It was rather shocking how little upper-body strength she had. But perhaps that’s how it always was with rich girls; having no need to work, their bodies grew weak.

  Not that Param had been rich—she had owned nothing. But Umbo could see easily enough that owning nothing as a royal was very different from owning nothing as a peasant. She had eaten well; there was no shadow of gauntness. No one had ever required her to haul water up from a river or stream—the endless task that turned young village girls into stringy, wiry, strong young animals who feared no man who had not worked his body at least as hard.

  But soft-bodied or not, all that mattered now was for Param to get him and her through the Wall after he sent Rigg and Loaf and Olivenko through.

  “Will I need to keep silent while you work?” asked Param.

  “I don’t know,” said Umbo. “No one’s ever spoken to me while I did this.”

  “Then I’ll be silent until you speak to me,” she said.

  Umbo watched as Loaf and Olivenko shouldered their packs, then made their way to Rigg, already burdened with his own. There was some fussing and arranging of themselves, until at last they were ready and Rigg gave him the signal to begin.

  “Here we go,” Umbo said to Param, as he reached out to speed up Rigg’s and Loaf’s and Olivenko’s perception of the flow of time. Not that it would make any difference to the two men right now—they saw no paths, and so nothing would be clarified to them. But Rigg could see, and Umbo watched his head turn as he looked at one path after another until he found the one he was looking for.

  Then, with a sudden wrench, Umbo felt the change as Rigg found his focus and flew backward into the past.

  Always before, there had been only the slightest tingle when Rigg did this; perhaps a little more when it was the far past, like the hundreds of years he’d leapt in order to steal the jewel-encrusted knife that Umbo wore at his belt.

  But eleven thousand years and more made that tingle into a twist so strong it stole his balance from him and dropped him to his knees. Param took hold of him so he would not fall from their little promontory. He was gasping as the party of time travelers set out on their journey across the open mile of the Wall.

  Maybe, if he included himself in the altered timeflow, Umbo could have seen what creature it was they clung to. But if he did that, then he himself—and Param, clutching him—would also hurtle into the past, and they would all be lost there. So Umbo restrained his curiosity about the unseen shape they bent over and rested their hands upon, keeping his mind on maintaining this projection into the ancient past.

  The farther they walked, the more he felt like something was twisting him inside, stringing him out like fibers being spun into a thread. This was hard. It had never crossed his mind that there was any significant danger to him from pushing someone back so far in time. But this feeling that something else had hold of his guts and was pulling them hand-over-hand into the past could not be good.

  Yet he kept on holding them deep in the past as they walked out farther and farther into the Wall. He could see that their legs were moving swiftly, but bent as they were, ever so slightly, to keep their hands on the invisible beast, their strides were not long. It was as if they scuttled across the stony, grassy ground like an insect, six-legged.

  He grew lightheaded; he wanted a drink of water; he wanted to take a deeper breath, and took one; he needed to pee, even though he had done it not that long before climbing up here. It was as if his body wanted to distract him from this labor, and would use any means to do it.

  But there were Param’s arms wrapped around him from behind. Hers were the arms of a woman, weak as they might be, and they reminded him of his mother, the only woman who had ever held him like this—held him when he was filled with rage against his father; held him when he wanted nothing more than to run away.

  He had never understood why Mother wanted him to stay. Stay to be beaten? Stay to prove again and again how a boy his size could not do any manly tasks? Only when Mother was grieving for
Kyokay’s death and, though she tried to hide it, angry with Umbo for letting his younger brother die, only then had Umbo been able to slip out of that embrace and strike out on the road with Rigg.

  And now he was held again, only this time the embrace didn’t feel like confinement, it felt like Param was strengthening him, like something flowed into his chest from her hands pressing palms-flat into him. They were like one person perched atop the rock, and so they remained, both kneeling, as Rigg and Loaf and Olivenko passed the halfway point.

  Hooves of horses were cantering over open stony ground, and Umbo heard their own horses, already nervous from being so near the Wall, nicker and neigh, stamping and nervously walking a few steps.

  He felt Param’s body twist behind him; he knew she was looking for the source of the sound. Then she turned back front and one of her hands briefly left his chest. She made sharp, sudden movements; she must be gesturing for Rigg to hurry. And Rigg had seen her, glancing back over his shoulder as he ran.

  “They’re here,” whispered Param. “Hear nothing. Only watch Rigg and the men, and do your work as long as you can. I will do whatever speaking must be done—none at all, if I can help it.”

  So Umbo heard without paying attention as a score of horses came nearer and nearer, then neighing and shying as their riders tried to bring them near the Wall. The horses got their way; it was dismounted that the armed men came walking into the space between the Wall and the promontory where Umbo and Param knelt.

  The men wore swords, but in their hands held the fiercer weapon Rigg had spoken of, when he told them about his and Param’s final interview with their mother the queen: heavy bars of iron with straps and handles to make it easy to manipulate.