breeze, and in that moment Cam felt himself lose hope. Everything he’d accomplished before today had been set against the vast, lethal reaches of the plague, a few small men and women surrounded by empty miles or dead cities, but he had always had a chance to in†uence his fate.
Then another invisible front shoved through the trees, far more violent than the ‚rst warm puff of air. The forest moaned, lashed with dust and bugs and †ecks of wood and leaves. Cam rolled down and covered his face with his arms, choking despite his mask.
Just as swiftly the wind was gone. He stayed on the ground until his own paralysis scared him. He’d seen too many people give up, and that wasn’t how he wanted to die. He moved. He moved even though there didn’t seem to be much point, wincing at the abrasive grit in his eyes. He was caked in grime that he assumed was radioactive. The sun itself had dimmed, obscured by the sandstorm. Ruth and Newcombe hadn’t fared any better, although there were clean patches on her side where Newcombe had covered her body with his own. Otherwise they were brown like Cam with ‚lth in every crease in their jackets and hoods. It also stuck to the trees, discoloring the bark.
How long did they have left? Cam supposed it depended on how near the bomb had been. It might be days before the poison reduced them to bleeding invalids, but his next thought was the radio. He wondered if they could wire the extra batteries and rig it to broadcast for hours and hours after they were dead. Maybe there would be a survey plane. Maybe an evacuation out of Leadville’s forward base would †y close enough to hear. Somebody might ‚nd them, bad guys or good, and he’d rather have anyone secure the vaccine than let it be lost forever in this narrow mountain valley.
Cam took off his goggles and clapped them against his leg, straining through the dust. “You okay?” he croaked, kneeling at Ruth’s side. She nodded distantly.
Her goggles had failed, too, and were coated with grit on the inside. Cam eased the strap off the back of her hood. Then he pulled off his gloves and used his ugly, clean hands to brush at her cheek. He savored the small intimacy. Ruth was obviously stunned, but he could see that his attention helped her focus again. Her brown eyes went to his face. She might have tried to smile.
She glanced at Newcombe. “What happened?”
“Blast wave,” Newcombe said, wheezing. He slapped at his hood. “Christ. I didn’t think it would come this far.”
“You mean from the bomb in Colorado? I—”
“What kind of radiation did we just get?” Cam asked with sudden urgency. Newcombe was too calm. The soldier didn’t think they’d been hit again, and his demeanor set off the torrent of emotion that Cam had suppressed. He brought his hands back against his own body to hide his shaking. He was only beginning to dare to think he wouldn’t have to shoot her and then himself before the vomiting and pain got too bad.
“This isn’t fallout from another strike,” Newcombe said, showing them one brown glove. “It was just hot air, mostly. From the ‚rst bomb. It took this long to get here. The radiation might be about the same dose we’ve been getting in ultraviolet every day. Not enough to kill us, if that’s what you mean. Not at this distance.” He looked at his watch. “Fifty-eight minutes. Christ. That nuke must have been gigantic.”
“You’re still sure it went off in Leadville?” Ruth asked. She’d ‚nally started to pat at her own clothing and Cam used the excuse to lean away from her. He was trembling badly now and he didn’t want her to see what must be in his eyes.
* * * *
They stayed put for thirty minutes. Cam moved them a few yards from the snake holes onto a slab of rock, where they settled down to clean themselves, drink, and wash their goggles. Newcombe tried the radio again. He scrawled in his journal. Except for another passing quake, the forest was silent. The bugs seemed to have gone to ground after the blast wave and that at least was a mercy.
“You saw what happened to the sky,” Newcombe said.
Ruth nodded but Cam’s mind was still elsewhere. He looked up through the trees as they talked, absorbing the strange beauty of the dust. A brown fog continued to unfurl on the wind, affecting the sunlight, but they were three miles down into the valley. They’d lost their vantage point and could no longer see the torn horizon in the east.
“The quake hit ‚rst because vibrations go through solid things pretty fast,” Newcombe said. “Air is different.”
“The wind,” Ruth said.
“That wouldn’t make any difference up close.”
“No. But the fallout,” she said.
“I don’t know.”
“The wind will push the fallout away from us, especially the stuff way up in the atmosphere,” she said.
They needed it to be true, but Cam kept his mouth shut. He was also worried about the plague. If the blast wave had truly swept across seven hundred miles, it would have also brought a massive storm of nanotech. A lot of the subatomic machines might have billowed up above ten thousand feet and self-destructed. Cam supposed the blast could have cleaned away as many as it deposited, but the Sierras rose up like a wall after the great basins of Utah and Nevada. The blast wave might have spent the last of its strength here even as these mountains acted like a comb, collecting thick ‚lms of nanotech out of the air.
He was in no hurry to start hiking again. If they’d ingested too much of the plague along with the dust, in another hour or two they’d be screaming with it. They could run back west up to the barrier.
* * * *
It didn’t happen. For once they had some luck. Cam supposed they were still close enough to elevation. Almost certainly there had been wild †uctuations of pressure inside the blast. Maybe the bomb had even sterilized a wide swath of the plague as a side effect.
They got up and hiked. They hiked, and after another mile Ruth began to limp, favoring her right foot. Gradually there were signs that the blast wave hadn’t been so powerful down in the valley. The mountains across from them seemed to have de†ected the wind, protecting this low area. There was less dust slammed into the sides of the trees. The normal litter on the forest †oor had only been swept into curling ‚ngers and dunes rather than completely lifted away.
In a stand of mountain hemlock, ants dropped out of the pine needles overhead like cinders, still alive. In another place Cam saw a yellow page from a phone book, just a single page, carried up from God knew where. Then they walked into a hundred yards of garbage strewn through the trees, mostly plastic bags and cellophane. It was new. The breeze was already pushing a lot of it free and one bag †oated down alongside him as they walked.
The blast must have dispersed weird pockets of debris across North America. Cam wondered †eetingly about the ants in the trees. He’d ‚gured it was a local colony that got swept up but maybe they were something else, like a desert species. The fragmented niche ecologies he’d seen everywhere might be facing yet another upheaval as new insects were dropped into the mix over hundreds of miles.
It would be worse on the other side of the bomb. The eastward †ow of the weather would bend most of the dust, garbage, and bugs back over and around the explosion. Where the fallout didn’t kill everything, the insects would begin a new and evermore savage ‚ght for dominance.
There was no reason to care in the short run. Cam had learned very well to distract himself, but he couldn’t escape the aching in his feet, knee, hip, hand, or neck for more than a few minutes at a time — or his concern for Ruth. They hiked. They hiked and found a sunlit meadow where the taller weed grass had been †attened in arcs like crop circles. Cam panicked again when his left hand began to throb suddenly, but after a few minutes the vaccine seemed to beat down the plague, and Ruth and Newcombe seemed unaffected. It was just a †uke infection.
* * * *
They slept like the dead a good mile up the rising slope of the next mountain. They were all so tired that
