Thomas turned back to stare at the sign, trying to suppress the feeling of doom that had risen inside him. "Not much here that sounds very good. Catastrophe. Killzone. Experiment. Real nice."

"Yeah, real nice, Greenie. Let's go."

Reluctantly, Thomas let the vines fall back into place and swung his backpack over his shoulders. And off they went, those six words burning holes in his mind.

An hour after lunch, Minho stopped at the end of a long corridor. It was straight, the walls, solid, with no hallways branching off.

"The last dead end," he said to Thomas. "Time to go back."

Thomas sucked in a deep breath, trying not to think about only being halfway done for the day. "Nothing new?"

"Just the usual changes to the way we got here—day's half over," Minho replied as he looked at his watch emotionlessly. "Gotta go back." Without waiting for a response, the Keeper turned and set off at a run in the direction from which they'd just come.

Thomas followed, frustrated that they couldn't take time to examine the walls, explore a little. He finally pulled in stride with Minho. "But—"

"Just shut it, dude. Remember what I said earlier—can't take any chances. Plus, think about it. You really think there's an exit anywhere? A secret trapdoor or something?"

"I don't know . . . maybe. Why do you ask it that way?"

Minho shook his head, spat a big wad of something nasty to his left. "There's no exit. It's just more of the same. A wall is a wall is a wall. Solid."

Thomas felt the heavy truth of it, but pushed back anyway "How do you know?"

"Because people willing to send Grievers after us aren't gonna give us an easy way out."

This made Thomas doubt the whole point of what they were doing. "Then why even bother coming out here?"

Minho looked over at him. "Why bother? Because it's here—gotta be a reason. But if you think we're gonna find a nice little gate that leads to Happy Town, you're smokin' cow klunk."

Thomas looked straight ahead, feeling so hopeless he almost slowed to a stop. "This sucks."

"Smartest thing you've said yet, Greenie."

Minho blew out a big puff of air and kept running, and Thomas did the only thing he knew to do. He followed.

The rest of the day was a blur of exhaustion to Thomas. He and Minho made it back to the Glade, went to the Map Room, wrote up the day's Maze route, compared it to the previous day's. Then there were the walls closing and dinner. Chuck tried talking to him several times, but all Thomas could do was nod and shake his head, only half hearing, he was so tired.

Before twilight faded to blackness, he was already in his new favorite spot in the forest corner, curled up against the ivy, wondering if he could ever run again. Wondering how he could possibly do the same thing tomorrow. Especially when it seemed so pointless. Being a Runner had lost its glamour. After one day.

Every ounce of the noble courage he'd felt, the will to make a difference, the promise to himself to reunite Chuck with his family—it all vanished into an exhausted fog of hopeless, wretched weariness.

He was somewhere very close to sleep when a voice spoke in his head, a pretty, feminine voice that sounded as if it came from a fairy goddess trapped in his skull. The next morning, when everything started going crazy, he'd wonder if the voice had been real or part of a dream. But he heard it all the same, and remembered every word: Tom, I just triggered the Ending.

CHAPTER 34

Thomas awoke to a weak, lifeless light. His first thought was that he must've gotten up earlier than usual, that dawn was still an hour away. But then he heard the shouts. And then he looked up, through the leafy canopy of branches.

The sky was a dull slab of gray—not the natural pale light of morning.

He jumped to his feet, put his hand on the wall to steady himself as he craned his neck to gawk toward the heavens. There was no blue, no black, no stars, no purplish fan of a creeping dawn. The sky, every last inch of it, was slate gray. Colorless and dead.

He looked down at his watch—it was a full hour past his mandatory waking time. The brilliance of the sun should've awakened him—had done so easily since he'd arrived at the Glade. But not today.

He glanced upward again, half expecting it to have changed back to normal. But it was all gray. Not cloudy, not twilight, not the early minutes of dawn. Just gray.

The sun had disappeared.

Thomas found most of the Gladers standing near the entrance to the Box, pointing at the dead sky, everyone talking at once. Based on the time, breakfast should've already been served, people should be working. But there was something about the largest object in the solar system vanishing that tended to disrupt normal schedules.

In truth, as Thomas silently watched the commotion, he didn't feel nearly as panicked or frightened as his instincts told him he ought to be. And it surprised him that so many of the others looked like lost chicks thrown from the coop. It was, in fact, ridiculous.

The sun obviously had not disappeared—that wasn't possible.

Though that was what it seemed like—signs of the ball of furious fire nowhere to be seen, the slanting shadows of morning absent. But he and all the Gladers were far too rational and intelligent to conclude such a thing. No, there had to be a scientifically acceptable reason for what they were witnessing. And whatever it was, to Thomas it meant one thing: the fact they could no longer see the sun probably meant they'd never been able to in the first place. A sun couldn't just disappear. Their sky had to have been—and still was—fabricated. Artificial.

In other words, the sun that had shone down on these people for two years, providing heat and life to everything, was not the sun at all. Somehow, it had been fake. Everything about this place was fake.

Thomas didn't know what that meant, didn't know how it was possible. But he knew it to be true—it was the only explanation his rational mind could accept. And it was obvious from the other Gladers' reactions that none of them had figured this out until now.

Chuck found him, and the look of fear on the boy's face pinched Thomas's heart.

"What do you think happened?" Chuck said, a pitiful tremor in his voice, his eyes glued to the sky. Thomas thought his neck must hurt something awful. "Looks like a big gray ceiling—close enough you could almost touch it."

Thomas followed Chuck's gaze and looked up. "Yeah, makes you wonder about this place." For the second time in twenty-four hours, Chuck had nailed it. The sky did look like a ceiling. Like the ceiling of a massive room. "Maybe something's broken. I mean, maybe it'll be back."

Chuck finally quit gawking and made eye contact with Thomas. "Broken? What's that supposed to mean?"

Before Thomas could answer, the faint memory of last night, before he fell asleep, came to him, Teresa's words inside his mind. She'd said, J just triggered the Ending. It couldn't be a coincidence, could it? a sour rot crept into his belly. Whatever the explanation, whatever that had been in the sky, the real sun or not, it was gone. And that couldn't be a good thing.

"Thomas?" Chuck asked, lightly tapping him on the upper arm.

"Yeah?" Thomas's mind felt hazy.

"What'd you mean by broken?" Chuck repeated.

Thomas felt like he needed time to think about it all. "Oh. I don't know. Must be things about this place we obviously don't understand. But you can't just make the sun disappear from space. Plus, there's still enough light to see by, as faint as it is. Where's that coming from?"