The fold reached the chamber.

Owen felt it first through the listening exercise. The iolite veins around them had been holding steady for hours, their faint resonance murmuring in the back of his perception. Then the resonance shifted. Not gradually. All at once. The veins stopped acting like iolite and started acting like something else — something that had been told it was iolite by an authority that did not need its consent.

He opened his eyes.

"It’s here."

Yalira was already drawing her daggers. Jorik came up off the floor of the chamber in a single low, practiced motion. Vren rose silent beside him, blade out.

The walls began to bend.

It was not a collapse. It was not even motion in the conventional sense. The stone of the chamber simply was no longer in the relationship to itself it had been a moment earlier. The narrow passage they had crawled through to enter the chamber was now ten meters away, twenty, fifty, the entrance receding without anything physically moving. The water in the small stream stopped flowing — not because it had frozen but because the stream’s source and the stream’s mouth had been gently relocated to the same point.

Owen’s stomach lurched.

"Stay close," Yalira said, and the word close lost its meaning even as she said it. The four of them were standing within arm’s reach of one another, then they were standing five meters apart, then they were standing in the same spot but facing four different directions. Vren was beside Owen, and then he was behind him, and then he was beside him again, and he had not moved.

The chamber dissolved.

The air went pale. The walls went pale. The ground beneath their feet went pale. And then there was only pale — a featureless grey luminance that had no horizon, no source, and no shadow.

Then the pale resolved into geography.

It came in like a held breath being released. Ground rose up under them. Sky settled above. Distance reasserted itself. The four of them were standing on flat, dust-colored stone that stretched in every direction without feature or end. The sky overhead was not the sky of Prison World. It was a single flat gradient running from cool grey at the zenith to a warm cream near the horizon, and the line where one became the other moved very slowly as Owen watched.

Yalira swore quietly.

"Fucking hell, We’re inside the fold."

"Yeah."

Jorik turned a full circle, scarred face composed, taking in the impossible space. "Where are we, exactly."

"Nowhere and everywhere," Yalira said. "We’re in his space. The fold doesn’t relocate you. It contains you. The whole thing is his pocket dimension now."

Vren pointed.

In the middle distance, small dark figures stood on the same flat stone. Owen counted four. Then six. Then nine. They were spread across the space at varied distances, each of them alone, each of them facing different directions, each of them frozen in postures of confusion and dread. Other prisoners. The fold had pulled them in too, scooped them up from wherever they had been hiding above ground and deposited them here for the harvest.

Then the Architect appeared.

He did not walk into view. He simply was there, twenty meters in front of Owen’s group, where there had been empty stone a heartbeat before. He stood very still. His body was wrong in a way that took Owen several seconds to read properly — the being had two arms, two legs, a head, the standard humanoid count, but his joints did not bend in the standard humanoid places. His elbow had an extra hinge in it. His knee bent slightly backward as well as forward. His head sat at an angle to his neck that should have been painful and clearly was not.

His skin was the same dust-color as the ground. His clothing, if it was clothing, was a long folded garment that did not seem to have an underside. His eyes, when he turned to face them, were two flat black coins.

"Vasek of the Seventh Frame," Yalira murmured. "I think. The Architects use frame-numbers like the Ordained use Choirs. Seventh is mid-tier."

"Mid-tier of what."

"Of Architect. He’s still peak Tier 3."

"Lovely."

Vasek lifted one hand. The gesture rippled along an arm that bent in a place no arm should bend.

He spoke.

His voice was strange. It came from his mouth, but it also seemed to arrive at Owen’s ears from several other directions, as if the geometry of sound itself was something he had decided to have an opinion about.

"Lower-tier prisoners," Vasek said. "I have brought you into my space because the surface of this world is not interesting and the geometry of this world is not interesting and the work of catching you across distances I do not own is not interesting. Here, you are mine to catch. Here, the work is interesting."

He paused. The grey-cream sky shifted overhead.

"You will find that running is unproductive. You will find that hiding is unproductive. You will find that holding ground is unproductive. The only thing that is productive in my space is engagement. I encourage you to engage. I will be hunting you in the order I find aesthetically suitable. I expect this to take several hours."

He inclined his head, the off-angle motion sickening to watch.

"Begin."

The ground moved.

Not under the Architect. Under the prisoners — all of them, including Owen’s group. Owen felt the stone beneath his feet tilt without tilting, the horizon swing without swinging. Suddenly the four of them were no longer standing together — Yalira was forty meters to his left, Jorik was somewhere behind him, Vren was directly above him at a height that should have killed him to fall from but did not seem to be a falling situation. Their relative positions had been redrawn.

Then the ground inverted.

Owen was running before he had decided to run. Whatever direction was ground, his body was sprinting along it, the inversion spinning around him without affecting his footing because the Architect had decided footing was a constant and orientation was a variable. He moved without moving toward Yalira. She was running toward him. Their paths were not converging. The space between them was being lengthened on purpose.