"She never did. Bob knew it was there, but he said the geigers proved it was impassable, so he didn't worry about it. I guess the radiation was down when you came but Sosa didn't say a word."
So they could have invaded that way! Why hadn't Sosa given the route away?
Then he remembered: Sos-Sosa. Sometime in the past she had been his wife, and she must still have loved him. So she hadn't told. But he had thought she had, and so the surface battle had begun. Just one more irony of many.
Soli lit one of their two lanterns and marched in. Var, perforce, followed.
Could this great tube actually cross under the entire ocean? What kept the water out, he wondered.
And why did no one emerge from it, if other men had entered? If the problem were radiation, he would discover it. But he feared that was not the case. There could ne other dangers in fringe radiation zones, as he knew saw mutant wildlife, from deadly moths to giant amphibians, as well as harmless forms like the mock sparrow. And what else, here?
Deep in the tunnel the walls developed a tiled surface, clean and much more attractive that the bare metal and concrete. Var knew what had happened: the natives had pulled off the nearest tiles for their own use, but had not dared to penetrate too far. The mud on the bottom also slacked off, so that they walked on a fine gray surface, of a coarse texture in detail but marvelously even as a whole.
It was ideal for running; their feet had excellent traction.
But how far could this continue? After an hour's brisk walk, he asked Soiclass="underline" "How wide is the ocean?"
"Jim showed me a map once. He said this way was the Pacific, and it's about ten thousand miles wide."
"Ten thousand miles! It will take years to cross!" -
"No," she said. "You know better than that, Var. You can figure. If we walk four miles an hour, twelve hours a day, that's almost fifty miles."
"Twenty days to cover a thousand miles," he said, after a moment's difficult computation. "To cover ten thousand over six months to cross it all. We have supplies for hardly a week!"
She laughed. "It isn't so wide up here. Maybe less than a hundred miles. I'm not sure. I think the tunnel must come up for air every so often, on the little, islands. So we won't have to walk it all at one stretch!"
Var hoped she was right. The tunnel was unnatural, and his nose picked up the dryness of it, the deadness. If danger fell upon them here, how could they escape?
They walked another hour, Soil swinging her lantern to make the grotesque shadows caper, and Var realized what it was that disturbed him most. The other tunnel, the subway passage, had teemed with life, though touched by radiation. This one had neither. Var knew that life intruded wherever it could, and should be found in a protected place like this. What kept it clean? There had to be a reason and not any swarm of shrews, for there were no droppings.
They rested briefly to eat and drink and leave the substance of their natural processes on the floor, since there was nowhere to bury it. They went on.
Then down the tunnel came a monster. It rumbled and hissed as it moved, and shot water from its torso, and it was bathed in steam. A tremendous eye speared light ahead.
Var froze for a moment, terrified. Then his instincts took over. He backed and turned and started to run.
"No!" Soli cried, but he hardly paid attention.
As he plunged down the tunnel, she plunged too and tackled him. Both fell and the rushing glare played over them.
"Machine!" she cried. "Man-made. It won't hurt men!" Now the thing was bearing down on them, faster than they could run, and the clank of its sparkling treads was deafening. It filled the passage.
"Stand up!" Soil screamed. "Show you're a man!" She meant it literally.
Var obeyed, unable to think for himself. Men seldom daunted him, but he had never experienced anything like this before.
Soli took his hand and stood by him, facing the machine.
"Stop!" she cried at it, and waved her other hand in the blinding light, but it did not stop.
"Its recognition receptor must be broken!" she shouted, barely audible above the din though her mouth was inches from his ear. "It doesn't know us!"
Var no longer had any doubts about what kept the passage clean. The water spouted out was probably a chemical spray such as the crazies used to clear pathways, that killed and dissolved anything organic. And men were organic.
They could not escape. The monster filled the tunnel, blasting its chemicals against the sides and ceiling, and he saw its front sweepers scooping dust into a hopper and wetting it down too. They could not get around it and could not outrun it. They had to fight.
Then it was upon them.
Var picked up Soli and heaved her into the air. As her weight left his arms, he leaped himself.
The machine struck.
Var clung to consciousness. He spread his arms, and when one banged against something soft, he grasped it and fetched it in. ,He found a metal rod with the other hand and hung on to it. He held Soli in his arms, and they were riding the machine-bodies spread against the warm headlight, feet braced against the upper rim of the hopper. Once he was sure of his position, he checked Soil. She was limp. He hauled her about so that her head was against his and put his ear to her mouth, and felt the slight gout of air that proved she was breathing. He studied her head and body as well as he could, alternately blinded and shadowed by the cutting edge of light, and found no blood. She was alive and whole-and if the concussion were not severe, she would awaken in time. All he had to do was hold her securely until the machine stopped.
He shifted about, hunkering down against the hopper rim. The brushes whirled in front, highlighted in the spillage of light, and the water poured down from nozzles, but still the air was foul with dust. Something not quite visible whirred and ground inside the yard-deep hopper, reminding him of gnashing teeth. He kept his feet out of it, certain that he perched precariously over an ugly death. He wrestled Soil around again and draped her over his thighs, supporting her shoulders with his free arm and her feet with one leg. He did not want any part of her to dangle into that dark maw.
His muscles grew tired, then knotted, but he did not shift position again. He knew it could not be long, at this speed, before the machine reached the end of the tunnel and he knew by the packed dirt where it had to stop. It only cleaned so far, for some reason. Once it did stop, they could jump free. They would be the first to escape from this ferocious tunnel.
In less than half an hour light showed, a dim oval beyond the focus of the machine's beam. The vehicle ground to a halt, steam rising thickly about the wedged passengers. Var made his effort and discovered that his legs had gone to sleep.
Soil was still unconscious; there was no help there. If he dislodged himself now, be was likely' to drop them both into the dread hopper.
Thà machine shuddered. The blasting water jets cut off.
The grinder beneath Var ceased its motion, and he saw that his fear had been Well-founded. But at least now he could step down on those gears without losing his feet, and that would make it possible to recover his circulation and lever Soli out.
The light doused, leaving only the pale cast from the entrance. The machine jolted into motion again the other way. Soil rolled off and Var had to grab for her. By the time he had her safe again, the motion was too swift. If he jumped with his prickling legs and her unconscious weight they would both be hurt.
But the grinder remained inert. Apparently it had been disconnected for the return trip, along with the spray and headlight Var worked one foot down, then let Soil slide.
Returning sensation made his legs painful, but now they were securely ensconced within the hopper, riding back along the tunnel at a good clip.