He had not yet earned the right to use it carelessly.
That truth followed Gu Yan from the dead kiln line into the waking hours of the Gray Furnace Sect.
Bone initial did not announce itself loudly, but it changed too much to remain invisible to anyone with eyes and memory. The weight in his body settled differently now. The first step of movement no longer belonged to muscle and urgency. It belonged to structure. Even when he tried to walk as he had in late Flesh, the body objected. The heel rooted more honestly. The spine wanted the line first. The chest still tried to steal when turns came too fast, and every time it did, the lower ribs punished him for it.
That was the first problem.
The second was that other people could read enough of it to become dangerous.
By the time smoke began rising from the lower kitchens, Gu Yan had already crossed half the sect through the less-used ash lanes. He took the longer paths on purpose, cut between old retaining walls, and avoided the broad courtyards where eyes gathered too easily.
It still was not enough.
When he reached the narrow lane behind the ruined storage sheds, Han Lei stepped out from between two stacked slag bins and blocked his way for one breath before moving aside.
Han Lei did not waste time greeting him. After one look, he said, "You are slower."
Gu Yan understood what he meant at once.
"Only in the wrong movements," Gu Yan answered.
Han Lei fell in beside him and glanced once at the lower line of his stance. "That means anyone who watched you closely before will notice."
"Yes."
Han Lei's expression hardened slightly. "Then Zhou Ren will notice sooner than most."
Gu Yan had already reached the same conclusion.
They continued walking without hurrying. That mattered. Bone initial had changed his body, but he could not afford to move like a man afraid of being seen. Fear was its own announcement.
After a few more steps, Han Lei said, "He asked about you again."
This time Gu Yan turned his head slightly. "How?"
"Too calmly," Han Lei replied. Then he added, "He did not ask where you are from. He already knows that. He did not ask whether you were missing. He asked who saw you yesterday, whether you fought recently, and whether your breathing looked unstable."
That was better phrasing than most disciples could manage.
It also meant Zhou Ren had stopped sniffing at the edges and started building a shape in his mind.
Gu Yan kept his voice even. "Who did he ask?"
Han Lei answered at once. "Two yard workers, one outer disciple from the kiln quarter, and a storage clerk who lies badly."
That earned the faintest shift in Gu Yan's expression.
Han Lei noticed and said, "I already told the storage clerk you were helping move broken fuel racks. He believed it because he wanted to."
"That helps," Gu Yan said.
"It helps for one day," Han Lei corrected.
That was fair.
By the time they reached the edge of the ash wash yard, Pei Zhen was already there, leaning against a cracked post with his arms folded and a face that suggested the whole sect had insulted him by continuing to exist.
Without pushing off the post, Pei Zhen said, "Good. You both took long enough that I almost began to think you had developed prudence."
Han Lei looked at him once and said, "That would have disappointed you."
"It would have ruined my morning," Pei Zhen replied.
Gu Yan stepped under the broken shade of the wash roof and kept most of his weight off the front line without making it obvious. Pei Zhen noticed anyway.
Of course he did.
After watching him settle for one breath, Pei Zhen said, "The structure holds better than it did after the break. The turns still betray you."
"Yes," Gu Yan answered.
Han Lei folded his arms. "And Zhou Ren is asking sharper questions."
Pei Zhen's expression changed at once. "About him?"
"Yes."
Pei Zhen clicked his tongue softly, then said, "That means we are almost at the stage where stupidity becomes political."
Gu Yan would have corrected the wording.
He did not.
Because it was close enough.
A group of younger outer disciples crossed the far side of the wash yard carrying slop buckets and arguing about furnace ash grades. None of them mattered. What mattered was the way one of them glanced at Gu Yan, hesitated, and then looked again.
Not recognition.
Not certainty.
Only the first instinctive read that something had changed.
Pei Zhen saw it too.
He kept his eyes forward as he murmured, "There. That is the problem."
Han Lei followed the younger disciple with his gaze and said, "He could not name it."
"He does not need to," Pei Zhen replied. Then, after a brief pause, he added, "He only needs to remember it."
That was exactly right.
Gu Yan remained still until the younger disciples passed fully out of sight. Only then did he say, "We shorten contact."
Han Lei gave a small nod. "For now."
Pei Zhen uncrossed his arms at last and stepped away from the post. "And if Lu Qingshan watches?"
That changed the air.
Not because Lu Qingshan had arrived.
Because he did not need to arrive to matter.
Gu Yan answered carefully. "Then I do less."
Pei Zhen stared at him. "That sounds wise. I resent it."
Before anyone could reply, footsteps sounded from the far lane.
Measured.
Not hurried.
Not clumsy.
All three men went quiet.
A moment later, Lu Qingshan crossed the open end of the yard.
He was alone.
That alone said something.
He did not come directly toward them. He walked past the first water trough, paused once beside a broken ash cart, and only then turned enough to make it clear he had seen them from the start.
His gaze settled on Han Lei first.
Then Pei Zhen.
Then Gu Yan.
No mockery. No crude accusation. No open challenge.
That was worse.
When he finally spoke, Lu Qingshan's voice remained calm. "You three seem to be keeping each other busy lately."
Han Lei answered first, and his tone stayed flat. "The yard is full of broken things. It keeps people occupied."
Lu Qingshan glanced once at the cracked roof, then back at them. "That does sound like this section of the sect."
Pei Zhen let out a faint breath through his nose. "If you came to inspect our scenery, Senior Brother Lu, I regret to report it remains ugly."
Lu Qingshan almost smiled at that.
Almost.
Then his eyes returned to Gu Yan.
That was the real movement.
After a long enough pause to matter, Lu Qingshan said, "You were seen moving strangely this morning."
That was direct.
Too direct to be innocent.
Gu Yan met his gaze and answered, "I trained badly yesterday."
Lu Qingshan's face did not change. "Perhaps."
He did not press immediately. Instead, he shifted one step nearer, not enough to become provocative, but enough to read better.
Han Lei noticed.
So did Pei Zhen.
Neither interrupted.
Lu Qingshan let the silence stretch once more before saying, "Your weight changed."
That was the first true strike.
Gu Yan gave him honesty wrapped in the smallest useful lie. "I corrected a flaw."
Lu Qingshan's eyes sharpened.
Not because the answer was convincing.
Because it was plausible.
After a breath, Lu Qingshan asked, "With whose help?"
That question mattered more than the previous one.
Han Lei's posture tightened almost invisibly.
Pei Zhen's expression thinned.
Gu Yan answered without turning his head. "Mine."
Lu Qingshan studied him for another long moment. Then, in the same even voice, he said, "That is a dangerous habit."
"Most useful ones are," Gu Yan replied.
That answer could have gone badly.
Instead, Lu Qingshan took one step back.
Not retreat.
Recalculation.
Then he said, "Be careful, then. The Gray Furnace Sect is not kind to people who change faster than others expect."
That was not a threat in the crude sense.
It was worse than a threat.
It was informed.
After speaking, Lu Qingshan looked once more at Gu Yan's stance—heel, ribs, shoulder line—then turned and left the yard without another word.
The moment he disappeared beyond the ash trough, Pei Zhen exhaled and said, "I dislike him more every time he chooses restraint."
Han Lei did not relax. "He saw too much."
"Yes," Gu Yan said.
Pei Zhen turned toward him sharply. "Too much of what?"
Gu Yan answered plainly. "Enough to stop thinking this is only about injury."
That silenced the other two.
Because it was true.
Lu Qingshan did not know the buried line. He did not know Root Hall. He did not know the service sketch, the correction chambers, or the method beneath the sect.
But he no longer believed Gu Yan's change was ordinary.
That alone made him more dangerous than half the yard combined.
Han Lei looked toward the lane Lu Qingshan had taken and then said, "Then the next move belongs to Zhou Ren or to people above Zhou Ren."
Pei Zhen's brows drew together. "Why not Lu Qingshan?"
"Because Lu Qingshan will keep watching," Han Lei said. "He will not rush a bad move unless someone else gives him cause."
That was the kind of answer Gu Yan expected from him now.
Pei Zhen clicked his tongue, but not in disagreement. Then he asked, "And if Zhou Ren moves first?"
Gu Yan was already thinking along that line.
Before he answered, another figure entered the wash yard from the outer ash road.
Not a disciple of the Gray Furnace Sect.
That much was obvious immediately.
The man wore travel-grey robes dusted pale from the road, but the cut of the sleeves and the layered half-cape over one shoulder were wrong for the sect. More important were the two small bronze tags hanging at his belt, each etched with a curled ash-mark that was too deliberate to be decoration.
He did not walk like a beggar, merchant, or wandering laborer.
He walked like someone used to entering poor places while carrying better information than the people inside them.
Pei Zhen noticed the bronze tags first and lowered his voice. "Not sect."
Han Lei's attention shifted fully toward the newcomer. "No."
The man stopped near the first trough and smiled politely enough to seem harmless to anyone stupid.
No one in the yard was that stupid.
He inclined his head slightly and said, "Forgive the interruption. I am looking for whoever oversees old furnace scrap in this quarter."
Han Lei answered before the others could. "That depends on what kind of scrap."
The stranger's smile deepened by a fraction. "The kind that used to matter more than it does now."
That line was too smooth to be accidental.
Pei Zhen's expression went flat with dislike. "That sounds like the beginning of a bad conversation."
The man finally let his gaze move over all three of them. When his eyes passed over Gu Yan, they paused for one beat too long.
Not enough to accuse.
Enough to register.
Then the stranger said, still politely, "I buy old calibration metal, collapsed furnace fittings, ash-treated control pieces, and broken regulation tools. Dead lines leave dead relics. Sometimes even poor sects find use in selling them."
That mattered immediately.
Too immediately.
Calibration metal. Regulation tools. Dead lines.
He was not guessing at random categories.
He knew exactly the kind of debris the buried line beneath the sect would produce.
Han Lei's face did not change, but his voice cooled. "You are in the wrong yard."
"Perhaps," the stranger said. "But one hears things on the roads. Old chambers. Ash collapses. Broken heat lines. Curious accidents."
At that, Pei Zhen almost smiled—but the smile had no warmth in it. "Roads must be very talkative where you come from."
"They are," the stranger agreed. Then he added, "Especially when someone disturbs what should have stayed quiet."
There it was.
Not accusation.
Fishing.
Careful fishing.
Gu Yan remained still.
The body wanted to shift its weight. The new structure beneath Bone initial wanted the ground more honestly than before. He denied it that movement and stayed exactly where he was.
The stranger noticed that too.
Of course he did.
Then, with the same mild tone, the man touched one of the bronze tags at his belt and said, "I travel on behalf of the Ashbone Pavilion."
The name landed heavily.
Not because any of the three boys looked surprised.
Because the shape around many recent events suddenly made more sense.
Han Lei's shoulders hardened.
Pei Zhen's eyes sharpened with open dislike.
Gu Yan said nothing.
The stranger let the silence work for him before continuing. "If your quarter yields anything old and inconvenient, I pay fairly. If nothing is found, then I lose only a little time."
That was a lie.
Or rather, it was a half-lie.
Men like him did not travel for "a little time."
Han Lei spoke first. "Then lose it somewhere else."
The stranger smiled again, though now it looked more like measurement than courtesy. "Perhaps I will."
He did not leave immediately.
Instead, he let his gaze settle one last time on Gu Yan's stance, then said, "Be careful around dead lines. They rarely stay dead once young men begin improving too quickly."
That was as near to a direct strike as courtesy allowed.
Then he turned and walked back toward the ash road without hurry.
No one in the yard moved until he was gone.
Pei Zhen was the first to speak.
Very softly, he said, "I hate this morning."
Han Lei kept watching the road and answered, "Good. That means you understand it."
Gu Yan finally let out the breath he had been holding.
The subtlest shift followed it. The body settled again into the deeper line. Not enough to expose him to ordinary fools. Enough that someone trained to read old systems, weight, and structure could begin asking the correct wrong questions.
That had just happened twice in one morning.
Once with Lu Qingshan.
Once with the Ashbone Pavilion.
That changed everything.
Pei Zhen turned back toward him and asked, "Now what?"
Gu Yan took one breath through the back line before answering. "Now we stop pretending the buried line belongs only to the sect."
Han Lei nodded once.
No one argued.
Because no one could.