Plague Zone

to clear those peaks of enemy troops, if in fact the Chinese had landed. These mountains and Grand Lake were at least twelve miles apart as the crow flies, but that was well within range of their guns.

It was insane to hike toward a combat zone and the fallout, yet Cam didn’t see any options. If the torn, intermingled bulk of the mushroom clouds was going to drift this far west, hiking a few miles in either direction probably wouldn’t matter. They’d eaten the last bits of their food and water. They needed help. More than that, they needed trained soldiers and volunteers.

Ruth saw the Chinese troops as an opportunity, because she thought they must be carrying some immunity to the mind plague in their blood.

However the new plague operated, Ruth continued to believe its core structure was modeled after the booster tech. There was no reason to think the Chinese hadn’t also developed a new, contagion-specific vaccine as well. How else could they be operating in the plague zone? Were they all wearing containment suits? It seemed unlikely that the Chinese could have stockpiled or manufactured so many suits, and soon enough the mind plague would reach Asia itself.

If Cam’s group could capture or kill an enemy soldier, they might be able to transfer his immunity to themselves as easily as they’d shared the original vaccine.

Was it possible it might even reverse the effects of the plague in people who were already infected? Ruth wouldn’t say, which Cam knew meant no. At least she didn’t think so. It was still worth the chance. If nothing else, they could protect themselves. Then they could begin to hunt out other survivors and protect them, too, creating a small guerrilla force against the Chinese.

Cam frowned as he examined Ingrid’s foot for bruises or swelling. She looked okay — but the four of them weren’t capable of the last-ditch ambush that Ruth envisioned. Maybe me and Bobbi, he thought. The two of us can try it if there’s no one else, but then who’s left to protect Ruth? Ingrid? We need more than one old lady to guard her.

“This vaccine,” he said. “Would it interfere with the old one? What if it eats it up, too? Then we’d be vulnerable to the machine plague again.”

“No,” Ruth said. “They must have reconfigured the heat engine in the new plague and its vaccine. Not a lot. Even reversing its structure as a mirror image would work. Then the different sets of plagues and vaccines wouldn’t even notice each other.”

“Aren’t we going to fill up at some point?” Bobbi asked. “How many kinds of nanotech can anybody have inside them?”

“The vaccines kill everything else, Bobbi.”

Arguing with Ruth was pointless. She had an answer for everything, so Cam turned his attention to Ingrid again. Her toe wasn’t even sprained that he could see. She was just sixty years old. She probably hurt in other places, too — knees, hips, back — but she’d toughed it out until this one pain was too much.

“Bend your toes for me,” he said.

“I can’t. I’m sorry.”

“Any numbness?”

“Yes.”

“Let’s do what we can to keep you moving,” Cam said, taking a knife to his own sock. He cut off most of the material above his ankle, then did his best to seal his pantleg into his boot again. Next, he used the few inches of spare sock to pad the ball of Ingrid’s foot. She didn’t have any extra meat on her at all, and her foot was bony and lean.

His thirst was maddening. It made him weak. They needed fluids, especially Cam, after losing so much blood, but running water might be even more dangerous than the air. Ruth had said that if the mind plague only replicated when it found new hosts, the worst of it might have passed. Everyone else in this region was infected, so the thickest clouds of nanotech should have already floated away by now, leaving only trace amounts in random, invisible traps — and yet the plague was less likely to adhere to the earth or rock or plants than it was to be absorbed by water. Moving water would enfold the nanotech in itself, gathering and concentrating the mind plague, lining the banks of rivers and lakes with it, so they didn’t know what to do except suffer.

“Are you ready?” he asked, not to Ingrid but to Ruth. The words came out harder than he’d intended, but he couldn’t believe she was just sitting there with her computer on her thighs, pecking at the keyboard with two gloved fingers.

“Leave her be,” Ingrid said. “She’s onto something. You know that.”

“Five minutes.”

“I need fifteen,” Ruth said.

Bobbi found a place against a tree with her M4. Cam didn’t sit down himself. He paced away from the three women, dodging through the white trunks and coin-sized yellow leaves of the aspen. There was a low buzzing he couldn’t identify, but he knew better than to let his curiosity get the better of him. Was it beetles? “We need more people if we’re really going to try to hit the Chinese,” he said, circling back toward Ruth. “Let’s go.”

“Fifteen minutes,” Ingrid said.

“There’s something in these trees. Bugs.”

“Lord God, let me think!” Ruth shouted. “Shut up! Just shut up!” She nearly dropped her laptop as she lurched onto her knees. “What is wrong with you? I swear to God, I’m almost done programming this—”

“Move,” Cam said.

“I won‘t!”

“Shh,” Bobbi said. “I hear it, too.”

“Leave me alone!” Ruth said. “We need to know what we’re dealing with even if we steal their vaccine. I’m almost done. Then we can let the computer work through—”

Cam wrenched her to her feet. The pain in his side was bad but his fear went deeper, because he’d finally seen two of the buzzing insects. Yellow jackets. Big, striped yellow jackets. There was no way of knowing how many of the meat-eating insects would swarm from their nests if they smelled him. He could only guess why they were here at all. Yellow jackets, wasps, and bees were believed to be extinct like moths and butterflies. The ants had wiped out everything that relied on hives and cocoons. Flying insects were also vulnerable to the machine plague. They generated too much warmth, absorbing sunlight with their bodies, creating friction with their wings — enough to activate its heat engine. The environment here was cold enough for the yellow jackets to escape disintegration, but something else must have shielded them from the ants.

“Downhill,” Cam said. “Fast as you can.”

The buzzing grew around them. The fluttering leaves concealed the smaller, darker movements of the yellow jackets — but in seconds, there were fifty or more. Then a hundred.

“Ouch!” Bobbi cried, slapping at her neck.

Ruth quit fighting him. She tucked her laptop into her pack and grabbed her M4, swinging both objects like unwieldy fly swatters. Bobbi and Ingrid chopped at the air, too. They drove some of the yellow jackets away. They enraged the rest. Yellow jackets hummed at Cam’s face, swooping and bumping as he led the group at an angle across the hill. They landed on his shoulders and pried at his hood.

“Oh!” Ingrid shouted.

Cam looked back. The older woman must have had one inside her clothing, because she was pounding at her chest. Then she walked into a tree. She almost fell. Ruth turned to help and Cam yelled, “No! Ruth! Let me—”

He saw a snake near her feet. Long and thick, it was creamy brown with dark blotches, a bull snake. It reared its head back to strike. Bull snakes weren’t poisonous, but if it drew blood it would make her a more desirable target for the yellow jackets.

Cam jumped forward and kicked, intercepting the bite. Its fangs grazed his pantleg, stabbing the skin beneath as he stomped at it.

“Look out!” Bobbi screamed behind him. Her M4 chattered into the ground. She wasn’t firing at the yellow jackets. There were more snakes in front of Bobbi and Cam sank his good hand into Ruth’s sleeve, pulling at her as she pulled at Ingrid. They staggered away in a chain.

Cam nearly stepped on a writhing nest. Most were shredded and bloody. A dozen more snapped and bit at each other in a frenzy of pain.

They smashed through the underbrush and the aspen. Cam punched at as many branches as he could reach,