Grove thought this jaunt would be better left until morning, for he could see Bisesa’s fatigue as well as Josh could. But Bisesa didn’t want to stop moving—not yet—as if to stop would be to accept the extraordinary reality of the situation. So Grove approved the mission. Josh’s respect for the man’s judgment and compassion grew; Grove understood what was going on here no better than anybody else, but he was clearly trying to deal with the simple human needs of the people who had, literally, fallen out of the sky into his domain.
A field party was drawn together: Bisesa, with Josh and Ruddy, both of whom insisted on accompanying her, and a small squad of privates under the nominal command of the Geordie private Batson, who, it seemed, might have impressed Grove enough that day to earn a promotion.
By the time they set out from the fort the dark was gathering. The soldiers carried oil lamps and burning torches. They walked directly east from the site of the chopper’s crash. Bisesa had estimated the distance at no more than a mile.
The lights of the fort receded, and the Frontier dusk opened up around them, huge and empty. But Josh could see thick black mounds of cloud on every horizon.
He hurried beside Bisesa. “If it is true—”
“What?”
“This business of slipping through time—you, and the man-ape creatures—how do you think it can have happened?”
“I’ve no idea. And I’m not sure if I’d rather be a castaway in time or a victim of a nuclear war. Anyhow,” she said briskly, “how do you know
Josh quailed. “I never thought of that. You know, I can scarcely believe I am even holding this conversation! If you had told me this morning that before I slept this night I would see a flying machine powerful enough to carry people inside it—and that those people would, and plausibly too, claim to be from a future a century and a half hence—I would have thought you were insane!”
“But if it’s true,” Ruddy said insistently, jogging alongside them—never very fit, he was panting a little—“if it’s true, there’s so much you know, so much you could tell us! For
She shook her head. “I’ve seen too many movies. Have you never heard of the chronology protection conjecture?”
Josh was baffled, as was Ruddy.
Bisesa said, “I guess you don’t even know what a movie is, let alone know
“I don’t understand,” Josh confessed.
“Suppose I told you where my great-great-great-grandmother lives, right now, in 1885. Then you go out, find her, and shoot her.”
“Why would I do that?”
“Never mind! But if you did, I would never be born—and so I could never come back to tell you about my grandmother—and you’d never shoot her. In which case—”
“It’s a paradox of logic,” Ruddy breathed. “How delightful! But if we promise not to molest your grandmother, can you tell us
Josh scoffed. “How would she ever have heard of
Ruddy looked thoughtful. “I have the feeling that she
But Bisesa would say no more.
As the last daylight seeped away, and the stars receded to infinity above them, the little party grew closer together, the soldiers’ bantering talk subdued, their lanterns held high. They were walking into strangeness, thought Josh. It wasn’t just that they couldn’t know
“Here,” said Bisesa suddenly. She had stopped before a scraping in the ground. Stepping closer, Josh saw that the earth was fresh and moist, as if recently dug.
“It’s a foxhole,” Ruddy said. He hopped down into the hole, and brandished a length of pipe, like a bit of drainpipe. “And is this the fearsome weapon that shot you out of the sky?”
“That’s the RPG launcher, yes.” She peered east. “There was a village just over there. A hundred meters, no more.” The soldiers held up their lanterns. There was no village to be seen, nothing but the rocky plain that seemed to stretch to the horizon. “Perhaps there is a boundary near here,” Bisesa breathed. “A boundary in time. What a strange thought. What is happening to us? …” She lifted her face to the Moon. “Oh. Clavius is gone.”
Josh was at her side. “Clavius?”
“Clavius Base.” She pointed. “Built into a big old crater in the southern highlands.”
Josh stared. “You have cities