Then a man stepped through one of the doors. Not stepped: stumbled. A big soft man, like the ones who'd delivered Wolgast's meals to his room, though his face was not familiar. He was holding a hand to a deep gash on his neck, the blood flowing through and around his fingers where they pressed into his flesh. His shirt, a white hospital tunic like Wolgast's, was a glistening bib of blood.

"Hey," he said. "Hey." He looked at the three of them, then up and down the hall. He seemed not to notice the blood or, if he did, not to care. "What happened to the lights?"

Wolgast didn't know what to say. A wound like that-the man should be dead already. Wolgast couldn't believe he was even standing.

"Oooo," the bleeding man said, wobbling on his feet. "I gotta sit down."

He slid heavily to the floor, his body seeming to cave in on itself, like a tent without poles. He took a long breath and looked up at Wolgast. His body shuddered with a deep twitch.

"Am I ... asleep?"

Wolgast said nothing. The question made no sense to him.

Lear touched his shoulder. "Agent, leave him. There's no time."

The man licked his lips. He'd lost so much blood he was becoming dehydrated. His eyes had started to flutter; his hands lay loosely, like empty gloves, on the floor at his sides.

"Because I'm here to tell you, I've been having the worst goddamn dream. I said to myself, Grey, you are having the worst dream in the world."

"I don't think it was a dream," Wolgast said.

The man considered this and shook his head. "I was afraid of that."

He twitched again, a hard spasm, as if he'd been hit by a jolt of current. Lear was right-there was nothing to do for him. The blood from his neck had darkened to a deep blue-black. Wolgast had to get Amy away.

"I'm sorry," Wolgast said. "We have to go."

"You think you're sorry," the man said, and let his head rock back against the wall.

"Agent-"

But Grey's mind already seemed elsewhere. "It wasn't just me," he said, and closed his eyes. "It was all of us."

They hurried on, to a room with lockers and benches. A dead end, Wolgast thought, but then Lear withdrew a key from his pocket and opened a door marked MECHANICALS.

Wolgast stepped inside. Lear was on his knees, using a small knife to pry loose a metal panel. It swung free on a pair of hinges, and Wolgast bent to look inside. The opening wasn't more than a yard square.

"Straight on, about thirty feet, and you'll come to an intersection. A tube leads straight up. There's a ladder inside for maintenance. It goes all the way to the top."

Fifty feet at least, climbing a ladder in pitch blackness holding Amy, somehow, in his arms. Wolgast didn't see how he could do it.

"There has to be another way."

Lear shook his head. "There isn't."

The man held Amy while Wolgast entered the duct. Seated, his head bent low, he'd be able to pull Amy along, holding her by the waist. He backed in until his legs were straight; Lear positioned Amy between them. She seemed to be poised on the edge of awareness now. Through her thin gown, Wolgast could still feel the warmth of her fever rising off her skin.

"Remember what I said. Ten yards."

Wolgast nodded.

"Be careful."

"What killed those men?"

But Lear didn't answer. "Keep her close," he said. "She's everything. Now go."

Wolgast began to scooch away, one hand clutching Amy by the waist, the other pulling them deeper into the duct. It was only when the panel sealed behind him that he realized that Lear had never meant to come with them.

The sticks were everywhere now, all over the compound. Richards could hear the screams and the gunfire. He took extra clips from his desk and ran upstairs to Sykes's office.

The room was empty. Where was Sykes?

They had to establish a perimeter. Push the sticks back inside the Chalet and throw the switch. Richards stepped from Sykes's office, his gun raised.

Something was moving down the hall.

It was Sykes. By the time Richards got to him, he had slumped to the floor, his back propped against the wall. His chest was heaving like a sprinter's, his face sheened with sweat. He was holding a wide tear on his lower arm, just above the wrist, from which blood was running freely. His gun, a .45, lay on the floor near his upturned palm.

"They're all over the place," Sykes said, and swallowed. "Why didn't he kill me? The son of a bitch looked right at me."

"Which one was it?"

"What the fuck does that matter?" Sykes shrugged. "Your pal. Babcock. What is it with you two?" A deep tremor moved through him. "I don't feel so good," he said, and then he vomited.

Richards jumped away, but too late. The air tanged with the stench of bile, and something else, elemental and metallic, like turned earth. Richards felt the wetness through his pants, his socks. He knew without looking that Sykes's vomitus was full of blood.

"Fuck!"

He raised his weapon at Sykes.

"Please," Sykes said, meaning no, or maybe yes, but either way, Richards figured he was doing Sykes a favor when he pointed the barrel at the center of his chest, the sweet spot, and then he squeezed the trigger.

Lacey saw the first one come out an upper window. So quick! Like light itself! How a man would move if he were made of light! It was up and over in an instant, vaulting off the roof into space, sailing through the air above the compound, alighting in a stand of trees a hundred yards away. A man-sized flash of throbbing luminescence, like a shooting star.

She'd heard the alarm as the truck pulled into the compound. The two men in the cab had argued for a minute-should they just drive away?-and Lacey had used this moment to climb out the back and scurry into the woods. That was when she'd seen the demon flying from the window. The treetops where he landed absorbed his weight with a shudder.

Lacey saw what was about to happen.

The driver of the truck was opening the truck's rear gate. Ordnance, the sentry had said-guns? The truck was full of guns.

The treetops moved again. A streak of green fell toward him.

Oh! Lacey thought. Oh! Oh!

Then there were more of them, pouring out of the building, through its windows and doors, launching themselves into the air. Ten, eleven, twelve. And soldiers too, everywhere, running and yelling and shooting, but their bullets did nothing; the demons were too fast, or else the bullets were harmless against them; one by one the demons fell upon the soldiers and they died.

This was why she had come-to save Amy from the demons.

Quickly, Lacey. Quickly.

She stepped from the edge of the woods.

"Halt!"

Lacey froze. Should she raise her hands? The soldier appeared from the woods where he'd been hiding, too. A good boy, doing what he thought was his duty. Trying not to be afraid, though of course he was; she could feel the fear coming off him, like waves of heat. He didn't know what was about to happen to him. She felt a tender pity.

"Who are you?"

"I am no one," Lacey said, and then the demon was upon him-before he could even point his weapon, before he could finish the word he was speaking as he died-and Lacey was running toward the building.

By the time they got to the base of the tube, Wolgast was sweating and breathing hard. A faint light was falling down upon them. Far above, he could see the twin beams of an emergency light and, farther still, the stilled blades of a giant fan. The central ventilation shaft.

"Amy, honey," he said. "Amy, you have to wake up."

Her eyes fluttered open and closed again. He guided her arms around his neck and stood, felt her feet clamping around his waist. But he could tell she had no strength.

"You have to hold on, Amy. Please. You have to."

Her body tightened in reply. But still, he'd have to use one of his arms to support her weight. This would leave only one hand free to pull them up the ladder. Jesus.

He turned and faced the ladder, set his foot onto the first rung. It was like a problem on a standardized test: Brad Wolgast is holding a little girl. He has to climb a ladder, fifty feet, in a poorly lit ventilation shaft. The girl is semiconscious at best. How does Brad Wolgast save both their lives?

Then he saw how he could do it. One rung at a time, he'd use his right hand to pull them up, then hook that same elbow through the ladder, balancing Amy's weight on his knee while he changed hands and moved up another rung. Then the left hand, then the right, and so on, moving Amy's weight between them, rung by rung to the top.

How much did she weigh? Fifty pounds? All suspended, at the moment he changed hands, by the strength of a single arm.

Wolgast began to climb.

Richards could tell from the shouts and the shooting that the sticks were outside now.

He'd known what was happening to Sykes. Probably it would happen to him too, since Sykes had puked his goddamn infected blood all over him, but he doubted he'd live long enough for this to matter. Hey, Cole, he thought. Hey, Cole, you weasel, you little shit. Was this what you hand in mind? Is this your Pax Americana? Because there's only one outcome I can see here.

There was just one thing Richards wanted now. A clean exit, with a good showing at the last.

The front entrance of the Chalet was all broken glass and bullet holes, the doors ripped half off their hinges, hanging kitty-corner. Three soldiers lay dead on the floor; it looked as if they'd been shot by friendly fire in the chaos. Maybe they'd actually shot one another on purpose, just to hustle things along. Richards raised his hand and looked at the Springfield-why would he think this would do any good? The soldiers' rifles would be no use either. He needed something larger. The armory was across the compound, behind the barracks. He'd have to make a run for it.

He looked out the door, across the open ground of the compound. At least the lights were still on. Well, he thought. Better now than later, since probably there would be no later. He took off at a run.

The soldiers were everywhere, scattered, running, shooting at nothing, at one another. Not even pretending to make an organized defense, let alone an assault on the Chalet. Richards ran full tilt, half-expecting to be hit.

Richards was halfway across the compound when he saw the five-ton. It was parked at the edge of the lot, at a careless angle, its doors open. He knew what was inside it.

Maybe he wouldn't have to make it across the compound after all.

"Agent Doyle."

Doyle smiled. "Lacey."

They were on the first floor of the Chalet, in a small, cramped room of desks and file cabinets. Doyle had been waiting there since the shooting had started, hidden beneath a desk. Waiting for Lacey.

He stood.

"Do you know where they are?"

Lacey paused. There were scratches on her face and neck, and bits of leaves caught in her hair.

She nodded. "Yes."

"I ... heard you," Doyle said. "All these weeks." Something huge was breaking open inside him. His throat choked with tears. "I don't know how I did that."

She took his hands in hers. "It wasn't me you heard, Agent Doyle."

At least Wolgast couldn't look down. He was sweating hard now, his palms and fingers slick on the rungs as he pulled them farther up. His arms were trembling with exertion; the crooks of his elbows, where he held each rung when he traded hands, felt bruised to the bone. There was a moment, he knew, when the body simply reached its limits, an invisible line that, once crossed, could not be uncrossed. He pushed the thought aside and climbed.

Amy's arms, crossed behind his neck, held firm. Together they ascended, rung by rung by rung.

The fan was closer now. Wolgast could feel a thin breeze, cool and smelling of night, spilling over his face. He craned his neck to scan the sides of the tube for an opening.

He saw it, ten feet above him: beside the ladder, an open duct.

He'd have to push Amy in first. Somehow he'd have to manage his own weight on the ladder and hers as well, while he swung her out from the ladder and into the duct; then he'd climb in himself.

They reached the opening. The fan was higher than he'd thought, another thirty feet above their heads at least. He guessed they were somewhere on the first floor of the Chalet. Maybe he was supposed to go higher, find another exit. But his strength was nearly gone.

He positioned his right knee to take Amy's weight and reached his left hand out. A featureless wall of cool metal met his fingertips, smooth as glass, but then he found the edge. He drew his hand back. Three more rungs should do it. He took a deep breath and ascended, positioning the two of them just above the duct.

"Amy," he rasped. His mouth and throat were dry as bone. "Wake up. Do your best to wake up, honey."

He felt her breathing change against his neck as she tried to rouse.

"Amy, I'm going to need you to let go when I say. I'll hold you. There's an opening in the wall. I need you to try to get your feet into it."

The girl gave no reply. He hoped she had heard him. He tried to imagine how this was going to work, exactly-how he was going to get her inside the duct and then himself-and couldn't. But he was out of options. If he waited any longer, he'd have no strength for any of it.

Now.

He pushed with his knee, lifting Amy up. Her arms released his neck and with his free hand he took her by the wrist, suspending her over the tube like a pendulum, and then he saw the way: he released his other hand, let her weight pull him away and to his left, toward the hole, and then her feet were inside it, she was sliding into the tube.

He began to fall. He'd been falling all along. But as he felt his feet lose contact with the ladder, his hands madly scrabbling at the wall, his fingers found the lip of the duct, a thin metal ridge that bit into his skin.

"Whoa!" he cried, his voice ricocheting down the length of the shaft. He seemed to be clinging to the side of the shaft by will alone; his feet were dangling in space. "Whoa now!"

How he did it he couldn't have explained. Adrenaline. Amy. That he didn't want to die, not yet. He pulled with all his might, his elbows bending slowly, drawing himself inexorably upward-first his head and then his chest and then his waist and finally the rest of him, sliding into the duct.

For a moment he lay still, gulping air into his lungs. He lifted his face then and saw a light ahead-some kind of opening in the floor. He twisted himself around and held Amy as he'd done before, scooting along on his backside, clutching her by the waist. The light grew stronger as they moved toward it. They came to a slatted grate.

It was sealed, screwed shut from the outside.