They did not bring Karael back to the ring.

  That was how he knew something had gone wrong.

  Instead, they took him down a narrower corridor where the stone showed older wear, where repairs overlapped repairs, and the air felt less regulated. Not unsafe. Improvised.

  The guards walked slower here.

  Not because they were tired.

  Because distance felt unreliable.

  Karael noticed it when one of them adjusted his stride twice in the span of three steps, jaw tightening each time as if irritated with his own body.

  They stopped outside a compact chamber with no markings on the door.

  Inside, the trainer waited alone.

  No venters. No observers. No handler.

  Just the trainer, sleeves rolled, scarred forearms bare, standing with his weight balanced and his feet deliberately misaligned with the floor grooves.

  “Inside,” he said.

  Karael stepped in.

  The door sealed.

  The air shifted slightly, then settled.

  The trainer studied Karael for a long moment, not like a hazard, not like a tool, but like terrain that might collapse under the wrong step.

  “You learned something yesterday,” the trainer said.

  “That doctrine fails near me,” Karael replied.

  The trainer shook his head. “No. You learned that doctrine fails when it assumes space behaves.”

  Karael waited.

  The trainer gestured to the center of the room. “Stand there.”

  Karael stepped forward.

  The heaviness in his chest adjusted immediately, not surging, not resisting, just rebalancing like weight settling into a new load path.

  The trainer circled him once, careful, eyes tracking Karael’s shoulders, hips, breath.

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  “You don’t flare,” the trainer said. “You don’t push. You don’t even tense until it’s too late.”

  “I’m trying not to,” Karael said.

  “I know,” the trainer replied. “That’s why this is dangerous.”

  He stopped directly in front of Karael.

  “Today,” the trainer continued, “we find where your body breaks.”

  Karael’s jaw tightened. “I already know.”

  “No,” the trainer said. “You know where it hurts. That’s not the same thing.”

  The trainer raised his hands.

  No flame.

  Just posture.

  “Strike,” he said.

  Karael hesitated.

  “Now,” the trainer snapped.

  Karael stepped in and threw a short punch.

  He did not put weight behind it. He did not accelerate fully. It was a testing strike, something meant to connect lightly and stop.

  It did not.

  The air between them compressed.

  Not enough to stop his arm.

  Enough to alter it.

  His fist landed at the wrong angle.

  Pain exploded up his wrist and forearm as bone met bone where it should not have. The impact was dull and sharp at the same time, a deep vibration that rattled through his elbow and into his shoulder.

  Karael gasped and staggered back.

  The trainer did not move.

  “Again,” the trainer said.

  Karael shook his hand once, teeth clenched. “That was wrong.”

  “Yes,” the trainer replied. “And it will keep being wrong.”

  Karael stepped in again, slower this time, trying to compensate by adjusting his wrist, angling his knuckles differently.

  The space shifted.

  His fist connected again, harder now, but the angle was still wrong.

  Something cracked.

  Not loud.

  Internal.

  Karael cried out and dropped to one knee, clutching his hand to his chest. Pain throbbed up his arm in hot pulses, each one dragging the heaviness tighter around his ribs.

  The trainer swore under his breath and stepped forward, gripping Karael’s forearm carefully, not touching the hand.

  “Stay still,” he said.

  Karael forced himself to breathe through clenched teeth.

  The trainer rotated the wrist slightly.

  Karael hissed.

  “Hairline fracture,” the trainer said quietly. “Maybe more.”

  Karael laughed once, sharp and humorless. “So that’s where it breaks.”

  The trainer’s expression darkened. “No. That’s where it starts.”

  He released Karael’s arm and stepped back.

  “You see it now,” the trainer said. “Your body still believes in normal contact. It commits to angles that no longer exist.”

  Karael flexed his fingers carefully. Pain flared, but movement remained. Barely.

  “So what,” Karael said. “I don’t punch.”

  The trainer met his gaze. “You will.”

  “Why.”

  “Because if you don’t,” the trainer said, “you become a fixed point. And fixed points get people killed.”

  Karael pushed himself back to his feet, cradling his hand. The heaviness in his chest had not flared. It had compacted tighter, like it was conserving something.

  “Then teach me,” Karael said.

  The trainer studied him for a long moment.

  “Not yet,” he said.

  Karael frowned. “You just said—”

  “I said we find where you break,” the trainer cut in. “We found it.”

  He turned toward the door and keyed it open.

  Outside, the handler waited.

  One look at Karael’s hand was enough.

  “Document it,” the handler said.

  The trainer nodded once. “Structural instability confirmed.”

  The handler looked at Karael. “You are restricted from close contact.”

  Karael laughed again, breathless. “That didn’t work yesterday.”

  “No,” the handler agreed. “Which is why we document the failure.”

  He gestured to the guards.

  “As of now,” the handler continued, “you do not enter melee unless ordered.”

  Karael stared at him. “And when it happens anyway.”

  The handler’s eyes were flat. “Then we will already know why.”

  They led Karael away.

  As they walked, the pain in his hand settled into a deep ache, steady and unforgiving. Each step made the heaviness in his chest adjust, compensating for imbalance he did not consciously feel.

  Behind him, the trainer remained in the chamber, staring at the spot where Karael had struck.

  He did not look at the floor markings.

  He looked at the air.

  “Barehanded,” he muttered to himself. “He’ll cripple himself.”

  He turned and keyed his slate.

  “Request,” he said quietly. “Containment bracing. Not weapons. Structural protection only.”

  The slate chirped once in acknowledgment.

  The trainer exhaled slowly.

  Outside, Karael felt the corridor tighten as he passed.

  Not in hostility.

  In anticipation.

  His hand throbbed.

  His chest felt heavier.

  And somewhere deeper in the Furnace, pressure shifted along a path that now included the memory of bone breaking at the wrong angle.

  The system did not record it as a failure.

  It recorded it as data.