But the body had already begun asking him when he intended to stop pretending otherwise.
The question followed Gu Yan all the way back through the outer routes of the Gray Furnace Sect.
It was there in every step.
It was there in the way his heels now wanted to root more cleanly into the ground before the rest of his body moved. It was there in the way his back carried better and his chest resisted less, yet still not enough. It was there in the ache beneath the lower ribs, an ache no longer belonging entirely to flesh, blood, or muscle.
He had not broken through to Bone.
Not yet.
But late Flesh no longer fit him the way it had before.
Pei Zhen noticed it first, of course. As the two of them crossed a colder ash path between old store sheds and a cracked retaining wall, Pei Zhen glanced sideways and said, "You are walking like a man trying very hard not to look newly injured."
Without slowing, Gu Yan answered, "I am walking like a man who is newly injured."
Pei Zhen let out a short breath that almost became a laugh. Then, after watching Gu Yan's shoulders for another few steps, Pei Zhen added, "No. That is not the only thing. Your weight changed."
Gu Yan did not answer at once.
That silence was answer enough.
They had chosen the longer route back on purpose, avoiding busier courtyards and the sections most likely to carry Lu Qingshan's people. The items taken from the buried line were hidden carefully: the service sketch and clay record close against Gu Yan's body, the braces divided between them, the remaining regulators wrapped in rag cloth, the pale paste and correction vessel secured so they would not clink or spill.
Nothing about them looked grand.
Nothing about them looked like treasure.
That was one more reason they were dangerous.
At the edge of a low ash-dry yard, Gu Yan finally stopped beneath the broken shadow of a lean roof. He did not mean to. His body stopped him first.
Pei Zhen halted as well and turned fully toward him. This time Pei Zhen did not joke. Instead, with unusual directness, Pei Zhen asked, "How close are you?"
Gu Yan leaned one shoulder lightly against a cracked support post before answering. "Closer than before."
Pei Zhen's eyes narrowed. "That is still not an answer."
After one slow breath, Gu Yan gave him the real one. "Close enough that the old shape is rejecting me."
That made Pei Zhen go quiet.
For a few breaths, neither of them spoke.
Wind carried old soot across the yard in thin black threads. Somewhere farther upslope, a hammer struck metal three times in a smith shed, then stopped. Nothing around them felt dramatic. No heavenly omen. No roaring energy. No great proclamation from fate.
Only the ordinary ugliness of a body that had already begun to outgrow its current frame.
Pei Zhen rubbed the side of his jaw and said, "Then standing still too long is bad."
"Yes," Gu Yan answered.
Pei Zhen continued, "And forcing it too soon is worse."
"Yes."
Pei Zhen looked at him flatly and said, "I dislike how often your path turns into choosing between bad and worse."
Gu Yan pushed himself off the post and replied, "If it turned into good and better, it would stop being mine."
That would have earned a sharper retort from Pei Zhen on most days.
Not this one.
Instead, Pei Zhen only looked him over once more and said, "Then the next problem is obvious."
Gu Yan already knew what he meant. "Han Lei."
"And Mo Chen," Pei Zhen added. Then, after a pause, he muttered, "And eventually Zhou Ren, because filth always rises when heat draws eyes."
That was also true.
Han Lei was practical enough to notice the change.
Mo Chen was old enough and sharp enough to read it better than anyone else.
Zhou Ren would not understand the truth, but he would smell movement. Men like him always did.
Gu Yan adjusted the bundle hidden beneath his outer robe, then said, "We separate here."
Pei Zhen frowned. "You think that helps?"
"It keeps one trail from becoming two," Gu Yan said.
Pei Zhen clicked his tongue and replied, "That is sensible. I dislike that too."
Before leaving, Pei Zhen glanced once at Gu Yan's side, where the hidden brace pressed lightly beneath the robe, then said in a lower voice, "If the line slips again before you see Mo Chen, use the back-breath first. Not the chest."
Gu Yan looked at him properly then.
That was not a warning spoken lightly. That was Pei Zhen repeating something learned, not borrowed.
After a beat, Gu Yan gave one short nod and said, "I know."
Pei Zhen's mouth pulled to one side. "Good. I would hate to think all that suffering improved only one of us."
Then Pei Zhen left by the lower ash route without another word.
Gu Yan watched him go for one breath, then turned uphill.
By the time he reached the older storage quarter where Mo Chen sometimes lingered, the ache beneath his ribs had changed again. It was sharper when he inhaled from the front, duller when he let the breath expand through the back. The service line below had not lied. The correction would hold only if he kept choosing the right pattern. The moment he got lazy, the easier wrong version would try to reclaim the body.
That thought irritated him more than the pain.
When he found Mo Chen, the older man was seated beside a cold kiln mouth with a bundle of split wood near one knee. He looked as if he had been doing nothing at all.
Gu Yan knew better.
Mo Chen raised his eyes the moment Gu Yan approached. He did not speak first. He only looked.
Then Mo Chen's gaze dropped to the way Gu Yan's stance settled. After that, to the shoulder line. Then to the lower ribs. Then back to his face.
At last, Mo Chen said quietly, "You went lower than I warned."
Gu Yan stopped three steps away and answered, "Yes."
Mo Chen's expression did not change much, but his next words came more sharply. "And you came back."
"Yes."
"That also sounds like luck," Mo Chen said.
Gu Yan thought about that before answering. "Partly."
Mo Chen let out a dry breath and muttered, "At least you are not stupid enough to call it skill alone."
There was comfort in that answer, in a hard old way.
Mo Chen stood and crossed the distance between them. Without asking permission, he placed two fingers first against Gu Yan's shoulder blade, then lower along the side of the ribs. He was not sending obvious qi. He was reading structure.
After a long moment, Mo Chen withdrew his hand.
The old man's eyes had narrowed slightly by then.
Mo Chen said, "The rear line holds better. The front still wants to steal too much." Then, after another brief pause, he added, "You are standing at the edge of something your current body no longer likes delaying."
"Yes," Gu Yan said.
Mo Chen studied him and asked, "Do you know what that means?"
Gu Yan answered with blunt honesty. "That if I wait too long, late Flesh will become the wrong shape instead of the safe one."
Mo Chen's expression shifted just enough to show approval. "Good. Then you learned something useful below instead of only collecting pain."
That was as close to praise as Gu Yan expected from him.
Mo Chen turned and gestured toward the cold kiln ledge. "Sit."
Gu Yan sat.
Mo Chen did not.
Instead, the old man opened a cracked wooden box beside the kiln mouth and drew out a strip of faded cloth, a bone needle, and a small stone bottle that smelled faintly of ash and bitter root.
Mo Chen held up the bottle and said, "This is not enough to help you break through. It is enough to stop you from twisting what you already corrected."
Gu Yan took the bottle without ceremony. "Where?"
Mo Chen stepped behind him and tapped three points with one knuckle—first along the back, then lower, then at the side-body under the ribs. "There. And nowhere else."
Gu Yan uncorked the bottle.
The liquid inside was darker than the pale paste from the service line below and less refined in smell. It had been made with local materials, not ancient perfection. Still, when he applied a small amount where Mo Chen indicated, the line beneath the skin eased very slightly.
Not healed.
Just less eager to betray him.
Mo Chen watched the application once and said, "Again tonight. Then once tomorrow. No more."
Gu Yan put the bottle aside. "Understood."
Mo Chen remained behind him for another moment before asking, "What did you bring back besides pain?"
Gu Yan knew that question would come.
He also knew better than to answer it badly.
Without showing everything, he drew out only the least dangerous thing first: one measurement slip and the shorter brace.
Mo Chen took both, studied them, and fell silent for several breaths.
When the old man finally spoke again, his voice had gone flatter. "Not sect work."
"No."
"Not recent."
"No."
Mo Chen ran a thumb along the brace's etched line and said, "And not meant for show."
That was exactly right.
Gu Yan met the old man's gaze and asked, "Do you know what made them?"
Mo Chen's eyes went back to the brace. Then he answered carefully, "I know enough to say the line beneath this sect was once used by people better than the sect deserves."
That was not the full truth.
It was also not nothing.
Before Gu Yan could press further, footsteps crossed the yard outside.
Both men went still.
A moment later, Han Lei appeared at the opening between two kiln walls. He stopped the instant he saw them, took in the scene, and then looked straight at Gu Yan.
Han Lei did not ask whether something had happened.
Han Lei looked at the way Gu Yan was seated, the angle of his torso, the way the left shoulder no longer sat as it had before, and then Han Lei said, "You changed."
There was no point insulting him with a lie.
"Yes," Gu Yan answered.
Han Lei stepped closer, eyes narrowing slightly. "Not a realm break."
"Not yet."
Han Lei accepted that at once. What he did not accept was the rest. After circling half a step to see Gu Yan from another angle, Han Lei said, "But the body is no longer settling like late Flesh."
Mo Chen gave a quiet, humorless sound that might have been approval. "At least one of you still has eyes."
Han Lei ignored the old man and looked directly at Gu Yan. "How bad?"
Gu Yan answered him more honestly than before. "Bad enough that waiting too long becomes a mistake."
Han Lei took that in without flinching.
Then Han Lei asked the better question. "And how many people already know?"
Pei Zhen would have laughed at that. Mo Chen merely remained silent.
Gu Yan answered, "Too few for safety. Too many for comfort."
That made Han Lei nod once.
Then, after a brief pause, Han Lei said, "Zhou Ren was asking about you earlier."
That mattered.
Gu Yan's expression did not change, but inside something tightened.
Han Lei continued, "Not directly. He was asking where you had been. Who you were seen with. Whether you were hurt." Then Han Lei's mouth flattened slightly as he added, "He was too calm about it."
Mo Chen snorted softly and said, "Men like Zhou Ren are always calm before they choose a side."
Han Lei looked from the older man back to Gu Yan and asked, "Do I need to move first or wait?"
That question carried more weight than the words themselves.
Han Lei was not offering admiration.
He was offering position.
After one breath, Gu Yan said, "Wait one night. Watch who Zhou Ren speaks to."
Han Lei nodded once. "Good."
Then, after looking once more at the bottle, the slip, and the brace, Han Lei said, "If you are about to stop fitting the old shape, do not do it where the whole yard can see."
That, too, was exactly right.
A faint almost-smile touched Gu Yan's mouth. "I was not planning to."
Han Lei's answer came dry and immediate. "Your plans have been unreliable lately."
Even Mo Chen almost smiled at that.
Silence settled for a few breaths after Han Lei left.
Then Mo Chen folded the measurement slip once, returned it to Gu Yan, and said, "You are running out of time."
Gu Yan did not pretend otherwise. "I know."
Mo Chen looked toward the yard exit where Han Lei had disappeared and then back at Gu Yan. "Good. Then do not waste tonight pretending late Flesh can still hold you comfortably."
That warning hit harder than anything else said so far.
Because it was true.
By the time Gu Yan left the kiln quarter, the sky above the Gray Furnace Sect had begun to dim toward evening. The upper paths were colder, the smoke thinner, and the body clearer in all the worst ways.
Every step was now instruction.
Every breath was correction.
Every moment spent lingering in the old shape felt less like caution and more like refusal.
He had not reached Bone.
Not yet.
But by the time the cold ash air of the outer lane brushed his face again, Gu Yan understood something with uncomfortable certainty.
The breakthrough itself was not the only danger.
Waiting for the perfect moment might become a greater one.