“You know,” Theo said, “I have the feeling that if we ever came back here, it would be just as it is now. Like it’s apart from everything. Like no time ever really passes here.”

“Maybe you will,” Peter said.

Theo fell silent, letting his gaze travel over the dusty street.

“Oh, hell, brother,” he said, shaking his head. “I don’t know. It’s nice to think it, though.”

Amy and Mausami emerged from the house. Everyone gathered around the Humvee. Another departure, another goodbye. There were hugs, good wishes, tears. Sara climbed behind the wheel, Hollis beside her, Theo and Mausami in the back with their gear. Also in the cargo compartment of the Humvee were the documents Lacey had given to Peter. Just deliver them, Peter had said, to whoever’s in charge.

Amy reached inside to give baby Caleb one last embrace. As Sara turned the engine over, Greer stepped to the open driver’s window.

“Remember what I said. From the fuel depot, straight south on Highway 191. You should be able to pick up Route 60 in Eagar. That’s the Roswell Road, takes you straight to the garrison. There’s fortified bunkers about every hundred kilometers. I marked them on Hollis’s map, but look for the red crosses, you can’t miss them. Nothing fancy, but it should get you through. Gas, ammo, whatever you need.”

Sara nodded. “Got it.”

“And whatever you do, stay away from Albuquerque-the place is crawling. Hollis? All eyes.”

In the passenger seat, the big man nodded. “All eyes, Major.”

Greer stepped back, making space for Peter to approach.

“Well,” Sara said, “I guess this is it.”

“I guess so.”

“Take care of Michael, all right?” She snuffled and wiped her eyes. “He needs… looking after.”

“You can count on it.” He reached in to shake Hollis’s hand, wished him good luck, then lifted his voice to the rear of the Humvee. “Theo? Maus? All set back there?”

“Ready as we’ll ever be, brother. We’ll see you in Kerrville.”

Peter backed away. Sara put the Humvee in gear, swung the vehicle in a wide circle, and pulled slowly down the street. The five of them-Peter, Alicia, Michael, Greer, and Amy-stood in silence, watching it go. A boiling plume of dust, the sound of its motor fading, then gone.

“Well,” Peter said finally, “the day’s not getting any younger.”

“Is that a joke?” Michael said.

Peter shrugged. “I guess it was.”

They retrieved their packs and hoisted them onto their backs. As Peter took his rifle from the floor, he spied Amy still standing at the edge of the porch, her eyes tracing the drifting cloud of the Humvee’s departure.

“Amy? What is it?”

She turned to face him. “It’s nothing,” she said. “I think they’ll be all right.” She smiled. “Sara is a good driver.”

There were no more words to say; the moment of departure was at hand. The morning sun had lifted over the valley. If everything went well, they would reach California by midsummer.

They began to walk.

SEVENTY-THREE

At a shimmering distance, they saw them: a vast field of turning blades, spinning in the wind.

The turbines.

They had kept to the deserts, the hot, dry places, sheltering where they could, and where they could not, building a fire and waiting out the nights. Once, and only once, did they see any virals alive. A pod of three. This was in Arizona, a place the map called “ Painted Desert.” The creatures were dozing in the shade beneath a bridge, hanging from the girders. Amy had felt them as they approached. Let me, Alicia said.

Alicia had taken them all. Three of them, on the blade. They found her in the culvert, pulling her knife from the chest of the last one; they had already begun to smoke. Easy, she said. They didn’t even seem to know what she was. Perhaps they simply thought she was another viral.

There were others. Bodies, the barest remains. The form of a blackened rib cage, the crumbling, ashlike bones of a hand or skull; the suggestive imprint on a square of asphalt, like something burned in a pan. Usually they came upon these remnants in the few towns they passed through. Most were lying not far from the buildings where they had slept and then departed, when they had laid themselves down in the sun to die.

Peter and the others had skirted Las Vegas, choosing a route far to the south; they believed the city would be empty, but better to be safe than sorry. By then it was the height of summer, the shadeless days long and brutal. They decided to bypass the bunker, taking the shortest possible route, and make straight for home.

Now they were here. They fanned out as they moved toward the power station. The fence, they saw, stood open. At the hatch, Michael got to work, unbolting the plate that covered the mechanism and manually turning the tumblers with the end of his blade.

Peter entered first. A bright metallic tinkling underfoot: he bent to look. Rifle cartridges.

The walls of the stairwell were shot to pieces. Chunks of concrete cluttered the stairs. The light had been blasted away. Alicia stepped forward, into the cool and gloom, pulling off her glasses; the darkness was no problem for her. Peter and the others waited as she descended to the control room, following the point of her rifle. They heard her whistle the all clear.

By the time they reached the bottom, Lish had found a lantern and lit the wick. The room was a mess. The long central table had been overturned, evidently to serve as a defense. The floor was littered with more cartridges and spent magazines. But the control panel itself looked all right, its meters glowing with current. They moved through the rear to the storage rooms and barracks.

No one. No bodies.

“Amy,” Peter said, “do you know what happened here?”

Like all of them, she was looking in mute astonishment at the extent of the destruction.

“Nothing? You don’t feel anything?”

She shook her head. “I think… people did this.”

The shelf that had hidden the guns had been pulled away; the guns on the roof were gone as well. What were they seeing? A battle, but who had been fighting whom? Hundreds of rounds had been fired in the hallway and the control room, more in the barracks, an overturned mess. Where were the bodies? Where was the blood?

“Well, there’s power,” Michael declared, sitting at the control panel. His hair flowed to his shoulders now. His skin was bronzed by the sun, wind-bit and peeling at his cheekbones. He was typing into the keypad, reading the numbers that flew down the screen. “Diagnostics are good. There should be plenty of juice going up the mountain. Unless… ” He paused, patting his lips with a finger; he began to type furiously again, rose briskly to check the meters above his head, and sat down once more. He tapped the screen with the back of a long fingernail. “Here.”

“Michael, just tell us,” Peter said.

“It’s the system backup log. Every night when the batteries get down below forty percent, they send a signal to the station, asking for more current. It’s all completely automated, nothing you’d ever see happening. The first time it happened was six years ago, then just about every night ever since. Until now. Until, let’s see, three hundred and twenty-three cycles ago.”

“Cycles.”

“Days, Peter.”

“Michael, I don’t know what that means.”

“It means either somebody figured out how to fix those batteries, which I seriously doubt, or they’re not drawing any current.”

Alicia frowned. “That doesn’t make any sense. Why wouldn’t they?”

Michael hesitated; Peter could see the truth in his face.

“Because somebody turned the lights off,” he said.

They spent a restless night in the bunker and set out in the morning. By half-day they had made their way through Banning and begun to ascend. When they stopped to rest beneath the shade of a tall pine, Alicia turned to Peter.