He had been tracking the drain since round one.

  The formation embedded in the Arena's foundation — the secondary system, the one that was not in the architectural plans — was operating at a higher extraction rate than he had initially calculated.

  Not 4.2 percent. The number had been climbing.

  Round one: 4.2%.

  Quarterfinals: 5.1%.

  As the matches grew more intense, as more powerful cultivators expended more energy, the drain increased proportionally.

  He ran projections.

  At the current rate of increase, by the semifinal round — where Wen Qing's Hundred Petal Cascade would dump catastrophic amounts of energy into the Arena's system — the drain would reach approximately 7.8%.

  That was significant. That was enough to affect the competitors.

  But it was worse than that for one specific person.

  Wu Zheng was in the audience. Wu Zheng's cultivation was fragile — Foundation Early, rebuilt from the ruins of his shattered Core Formation over seventy-three years and still stabilising.

  Wu Zheng's rebuilt meridians had the structural integrity of glass rods.

  And the Arena's drain did not distinguish between competitors and spectators.

  At 7.8% ambient drain, Wu Zheng's cultivation would begin to destabilise.

  The rebuilt meridians would degrade. If the drain peaked — if the final round generated enough energy to push the extraction above 9% — Wu Zheng could experience a full cultivation deviation.

  In his condition, at his age, with his history of damage, that meant death.

  Stolen from Royal Road, this story should be reported if encountered on Amazon.

  Not metaphorical death. Not loss-of-cultivation death. Dead dead.

  The kind of dead where Wu Zheng's body joined the ancient bones of the Silted Bones except here, in a city, on the floor of a spectator section, while the crowd cheered for flowers.

  Chen Xi ran the numbers four times.

  The numbers did not change. The numbers never changed.

  He put down his brush. He closed his notebook.

  He looked at the Arena — the beautiful, terrible Arena that someone had designed to eat the people inside it — and made a decision that his optimisation instincts screamed against and his something-else insisted upon.

  He went to find Su Yiran.

  ---

  "Show me," she said.

  He showed her. The energy flow maps, the extraction rates, the progression curve, and the projection for the semifinal round.

  She reviewed them in silence for eleven minutes — he counted — and when she looked up, her face had the specific emptiness of someone who has confirmed what they already suspected and is not happy about being right.

  "It's worse than what you're seeing," she said. "The extraction isn't just taking ambient energy. It's creating a negative pressure zone in the spectator sections.

  The competitors recover between matches because they're cultivators — their bodies regenerate Qi naturally.

  The spectators don't. Mortal attendees have been experiencing headaches, fatigue, and nausea since round two. I filed a report. Nobody read it."

  "Wu Zheng will die if the semifinals proceed at full intensity."

  "Wu Zheng, and possibly three or four other low-level cultivators in the stands with pre-existing meridian damage. Yes."

  "Then the tournament has to stop."

  "You can't stop the Sword Conference tournament."

  "I can withdraw from it. Publicly. And explain why."

  Su Yiran was quiet. Then: "You'll be giving up your path to the Second Stratum."

  "The expedition invitation goes to the tournament winner. I know."

  "You could win this. You could beat Wen Qing. I've seen your numbers. She's powerful but she's wasteful. You'd dismantle her in thirty seconds."

  "Probably. And in those thirty seconds, the Arena would extract enough energy to put Wu Zheng in a cultivation deviation."

  "So you're choosing Wu Zheng over the Second Stratum."

  Chen Xi did not answer immediately.

  He was thinking about a Saturday afternoon at Stanford, calibrating a coffee machine while the world continued around him with the serene indifference of a universe that did not care whether your espresso was 93.2 degrees or 93.1.

  He was thinking about the 0.003 seconds when he had seen the equation, and how the equation had included everything — not just particles and forces, but the relationships between the things that observed them.

  The observer was part of the system.

  The physicist was part of the physics.

  You could not optimise a system by removing yourself from it.

  "I'm choosing not to participate in a system that kills the people I—"

  He paused.

  "The people I am unwilling to lose."

  Su Yiran took his hand.

  This time, he did not catalogue the gesture.

  He held on.