Maybe it won't see us, he thought. Just maybe. But the reality of the situation sank like a stone in his belly. The beetle blade had already revealed his exact position.

The Griever rolled and clicked its way closer, zigzagging back and forth, moaning and whirring. Every time it stopped, the metal arms unfolded and turned this way and that, like a roving robot on an alien planet looking for signs of life. The lights cast eerie shadows across the Maze. A faint memory tried to escape the locked box within his mind—shadows on the walls when he was a kid, scaring him. He longed to be back to wherever that was, to run to the mom and dad he hoped still lived, somewhere, missing him, searching for him.

A strong whiff of something burnt stung his nostrils; a sick mixture of overheated engines and charred flesh. He couldn't believe people could create something so horrible and send it after kids.

Trying not to think about it, Thomas closed his eyes for a moment and concentrated on remaining still and quiet. The creature kept coming.

whirrrrrrrrrrrrrrr click-click-click whirrrrrrrrrrrrrrr click-click-click

Thomas peeked down without moving his head—the Griever had finally reached the wall where he and Alby hung. It paused by the closed Door that led into the Glade, only a few yards to Thomas's right.

Please go the other way, Thomas pleaded silently.

Turn.

Go.

That way. Please!

The Grievers spikes popped out; its body rolled toward Thomas and Alby.

whirrrrrrrrrrrrrrr

click-click-click

It came to a stop, then rolled once more, right up to the wall.

Thomas held his breath, not daring to make the slightest sound. The Griever now sat directly below them. Thomas wanted to look down so badly, but knew any movement might give him away. The beams of light from the creature shone all over the place, completely random, never settling in one spot.

Then, without warning, they went out.

The world turned instantly dark and silent. It was as if the creature had turned off. It didn't move, made no sound—even the haunting groans had stopped completely. And with no more lights, Thomas couldn't see a single thing.

He was blind. He took small breaths through his nose; his pumping heart needed oxygen desperately. Could it hear him? Smell him? Sweat drenched his hair, his hands, his clothes, everything. A fear he had never known filled him to the point of insanity.

Still, nothing. No movement, no light, no sound. The anticipation of trying to guess its next move was killing Thomas.

Seconds passed. Minutes. The ropy plant dug into Thomas's flesh— his chest felt numb. He wanted to scream at the monster below him: Kill me or go back to your hiding hole!

Then, in a sudden burst of light and sound, the Griever came back to life, whirring and clicking.

And then it started to climb the wall.

CHAPTER 20

The Grievers spikes tore into the stone, throwing shredded ivy and rock chips in every direction. Its arms shifted about like the legs of the beetle blade, some with sharp picks that drove into the stone of the wall for support. A bright light on the end of one arm pointed directly at Thomas, only this time, the beam didn't move away.

Thomas felt the last drop of hope drain from his body.

He knew the only option left was to run. I'm sorry, Alby, he thought as he unraveled the thick vine from his chest. Using his left hand to hold tight to the foliage above him, he finished unwrapping himself and prepared to move. He knew he couldn't go up—that would bring the Griever across the path of Alby. Down, of course, was only an option if he wanted to die as quickly as possible.

He had to go to the side.

Thomas reached out and grabbed a vine two feet to the left of where he hung. Wrapping it around his hand, he yanked on it with a sharp tug. It held true, just like all the others. A quick glance below revealed that the Griever had already halved the distance between them, and it was moving faster yet, no more pauses or stops.

Thomas let go of the rope he'd used around his chest and heaved his body to the left, scraping along the wall. Before his pendulum swing took him back toward Alby, he reached out for another vine, catching a nice thick one. This time he grabbed it with both hands and turned to plant the bottom of his feet on the wall. He shuffled his body to the right as far as the plant would let him, then let go and grabbed another one. Then another. Like some tree-climbing monkey, Thomas found he could move more quickly than he ever could've hoped.

The sounds of his pursuer went on relentlessly, only now with the hone-shuddering addition of cracking and splitting rock joined in. Thomas swung to the right several more times before he dared to look back.

The Griever had altered its course from Alby to head directly for Thomas. Finally, Thomas thought, something went right. Pushing off with his feet as strongly as he could, swing by swing, he fled the hideous thing.

Thomas didn't need to look behind him to know the Griever was gaining on him with every passing second. The sounds gave it away. somehow, he had to get back to the ground, or it would all end quickly.

On the next switch, he let his hand slip a bit before clasping tightly. The ivy-rope burned his palm, but he'd slipped several feet closer to the ground. He did the same with the next vine. And the next. Three swings later he'd made his way halfway to the Maze floor. Scorching pain flared up both his arms; he felt the sting of raw skin on his hands. The adrenaline rushing through his body helped push away his fear—he just kept moving.

On his next swing, the darkness prevented Thomas from seeing a new wall looming in front of him until it was too late; the corridor ended and turned to the right.

He slammed into the stone ahead, losing his grip on the vine. Throwing his arms out, Thomas flailed, reaching and grabbing to stop his plunge to the hard stone below. At the same instant, he saw the Griever out of the corner of his left eye. It had altered its course and was almost on him, reaching out with its clasping claw.

Thomas found a vine halfway to the ground and grasped it, his arms almost ripping out of their sockets at the sudden stop. He pushed off the wall with both feet as hard as he could, swinging his body away from it just as the Griever charged in with its claw and needles. Thomas kicked out with his right leg, connecting with the arm attached to the claw. A sharp crack revealed a small victory, but any elation ended when he realized that the momentum of his swing was now pulling him back down to land right on top of the creature.

Pulsing with adrenaline, Thomas drew his legs together and pulled them tight against his chest. As soon as he made contact with the Grievers body, disgustingly sinking inches into its gushy skin, he kicked out with both feet to push off, squirming to avoid the swarm of needles and claws coming at him from all directions. He swung his body out and to the left; then he jumped toward the wall of the Maze, trying to grab another vine; the Grievers vicious tools snapped and clawed at him from behind. He felt a deep scratch on his back.

Flailing once again, Thomas found a new vine and clutched it with both hands. He gripped the plant just enough to slow him down as he slid to the ground, ignoring the horrible burn. As soon as his feet hit the solid stone floor, he took off, running despite the scream of exhaustion from his body.

A booming crash sounded behind him, followed by the rolling, cracking, whirring of the Griever. But Thomas refused to look back, knowing every second counted.