“I overslept.”

The doors slid closed and the car began its slow descent.

“You think this is a vacation? You think you can just show up when you feel like it?”

Grey shook his head, his eyes cast down at the floor. Just the sound of the man’s voice could make his backside clench like a fist. No way Grey was going to look at him.

“Uh-uh.”

“That’s all you have to say?”

Grey could smell the nervous sweat coming off himself, a rancid stink, like onions left too long in a crisper drawer. Probably Richards could smell it too.

“I guess.”

Richards sniffed and said nothing. Grey knew he was deciding what to do.

“I’m docking you for two shifts,” Richards said finally, keeping his eyes forward. “Twelve hundred bucks.”

The doors slid open on L2.

“Don’t let it happen again,” Richards warned.

He exited the elevator and strode away. As the doors closed behind him, Grey released the breath he realized he’d been holding in his chest. Twelve hundred bucks-that hurt. But Richards. He made Grey more than a little jumpy. Especially now, after the little speech Paulson had given in the mess. Grey had begun to think maybe something had happened to Jack and Sam, that they hadn’t just flown the coop. Grey remembered that dancing red light in the field. It had to be true: something had happened, and Richards had put that light on Jack and Sam.

The doors opened on L3, giving a view of the security detail, two soldiers wearing the orange armband of the watch. He was well below ground now, which always made him feel a little claustrophobic at first. Above the desk was a big sign: AUTHORIZED PERSONNEL ONLY. BIOLOGICAL AND NUCLEAR HAZARDS PRESENT. NO EATING, DRINKING, SMOKING. REPORT ANY OF THE FOLLOWING SYMPTOMS TO THE OD. This was followed by a list of what sounded like a bad case of stomach flu, only worse: fever, vomiting, disorientation, seizures.

He gave his badge to the one he knew as Davis.

“Hey, Grey.” Davis took his badge and ran it under the scanner without even looking at the screen. “I got a joke for you. How many kids with ADD does it take to screw in a lightbulb?”

“I don’t know.”

“Hey, you wanna go ride bikes?” Davis laughed and slapped his knee. The other soldier frowned; Grey didn’t think he understood the joke, either. “Don’t you get it?”

“’Cause he likes to ride bikes?”

“Yeah, ’cause he likes to ride bikes. He’s got ADD. It means he can’t pay attention.”

“Oh. I get it now.”

“It’s a joke, Grey. You’re supposed to laugh.”

“It’s funny,” Grey managed. “But I gotta get to work.”

Davis sighed heavily. “Okay, hold your horses.”

Grey stepped back into the elevator with Davis. From around his neck Davis took a long, silver key and placed it in a slot beside the button for L4.

“Have fun down there,” Davis said.

“I just clean,” Grey said nervously.

Davis frowned and shook his head. “I don’t want to know anything about it.”

In the locker room on L4, Grey switched out his jumpsuit for scrubs. Two other men were there, sweeps like him, one named Jude and one named Ignacio. On the wall, a large whiteboard listed the duties of each worker for the shift. They dressed together without speaking and exited the room.

Grey had drawn the lucky straw: all he had to do was mop the halls and empty the trash, then babysit Zero for the rest of the shift, to see if he ate anything. From the storage closet he fetched his mop and supplies and got to work; by midnight he was done. Then he went to the door at the end of the first corridor, ran his card through the scanner, and stepped inside.

The room, about twenty feet square, was empty. On the left side, a two-stage air lock led into the containment chamber. Going through took at least ten minutes, more on the return trip, when you had to shower. To the right of the air lock was the control panel. It was all a bunch of lights and buttons and switches, most of which Grey didn’t understand and wasn’t supposed to touch. Above it was a wall of reinforced glass, dark, which looked out on the chamber.

Grey took a seat at the panel and examined the infrared. Zero was kind of huddled in the corner, away from the gates, which had been left open when the last shift had brought in the rabbits. The galvanized cart was still there, sitting in the middle of the room, with its ten open cages. Three of the rabbits were still inside. Grey looked around the room. The others were all scattered about, untouched.

At a little after one A.M. the door to the corridor opened, and one of the techs stepped in, a large Hispanic man named Pujol. He nodded at Grey and looked at the monitor.

“Still not eating?”

“Uh-uh.”

Pujol made a mark on the screen of his handheld. He had one of those complexions that made it look as if he hadn’t shaved even when he had.

“I was wondering something,” Grey said. “How come they don’t eat the tenth one?”

Pujol shrugged. “How should I know? Maybe they’re just saving it for later.”

“I had a dog who did that,” Grey volunteered.

Pujol made more marks on his handheld. “Yeah, well.” He lifted one broad shoulder in a shrug; the information meant nothing to him. “Call the lab if he decides to eat.”

After Pujol left, Grey wished he’d thought to ask him some of the other questions on his mind. Like, why rabbits at all, or how Zero stuck to the ceiling like he sometimes did, or why just sitting there had begun to make Grey’s skin crawl. Because that was the thing with Zero, more even than with the rest of them; being with Zero felt like being with an actual person in the room. Zero had a mind, and you could feel that mind working. Five more hours: Zero hadn’t moved an inch since Grey had gotten there. But the readout below the infrared still gave his heartrate at 102 bpm, same as when he was moving about. Grey wished he’d thought to bring a magazine to read or maybe a crossword book, to help him stay alert, but Paulson had rattled him so bad he’d forgotten. He also wanted a smoke. A lot of guys snuck them in the john, not just the sweeps but also the techs and even a doctor or two. It was generally understood that you could smoke there if you had to and weren’t gone more than five minutes, but Grey didn’t want to push his luck with Richards, not after their run-in in the elevator.

He leaned back in the chair. Five more hours. He closed his eyes.

Grey.

Grey’s eyes flew open; he sat upright.

Grey. Look at me.

It wasn’t a voice he was hearing, not exactly. The words were in his head, almost like something he was reading; the words were someone else’s, but the voice was his own.

“Who’s that?”

On the monitor, the glowing shape of Zero.

I was called Fanning.

Grey saw it then, like somebody had opened a door in his head. A city. A great city thrumming with light, so many lights it was as if the night sky had fallen to earth and wrapped itself around all the buildings and bridges and streets. Then he was stepping through the door and he felt and smelled where he was, the hardness of cold pavement under his feet, the dirt of exhaust and the smell of stone, the way the winter air moved in channels around the buildings so there was always a breeze on your face. But it wasn’t Dallas, or any other city he’d ever been to; it was someplace old, and it was winter. Part of him was sitting at the panel on L4 and another part was in this other place. He knew his eyes had closed.

I want to go home. Take me home, Grey.

A college, he knew, though why would he think such a thing, that this was a college he was seeing? And how would he know this was New York City, where he’d never been in his life, had seen only in pictures, and that the buildings around him were the buildings of a campus: offices and lecture halls and dormitories and labs. He was walking along a path, not really walking but somehow moving down it, and people were flowing past him.