Yan returned the beginner’s circulation chart before the library bell changed the posted reading hours. He kept it flat between two boards so the corners would not curl. The diagram had taught him how to guide qi from the chest toward the abdomen, but it still offered no reason for the pauses marked between turns.
A crate stood near the return desk under a label that read NONRECOVERABLE. The top had been tied shut with twine. One side had sagged where the boards met, and a thin strip of dark paper showed through the gap.
Yan set the chart on the desk. “That crate wasn’t there yesterday.”
“Old returns,” said the librarian at the back table. His name was Gu He. Most apprentices passed him without speaking, though a stack of catalog cards and a cup of tea sat within reach of his chair. One hand trembled slightly as he poured.
“Is it being sorted?” Yan asked.
“Eventually.” Gu’s eyes moved to the open seam. “If the crate has a false bottom, I would rather know before someone tries to lift it.”
Yan knelt and pressed the board gently. It flexed. A brittle book slid forward in the crate, scraping the paper lining. He caught it before it fell.
The cover had no title, only a worn black pattern and a red warning label. The brush strokes were forceful and familiar. Yan had seen similar marks in an older catalog, though the current index listed no Ashen Marrow Scripture.
He did not open it further. The warning was written across the front in clear red ink: Third full circulation destroys marrow. Bones will not support normal cultivation.
Yan turned the cover toward Gu. “Is this complete?”
Gu set the teapot aside and held out his steady hand. “Give it here.”
The library was quiet enough for Yan to hear the bell rope moving outside in the wind. He laid the brittle manual on the table between them. Gu read the warning and followed the red line with one finger, careful not to touch the faded paper.
“Are you trying to die?” he asked.
“No.”
“Then why carry this to me?”
“I want to know if the pages are complete.” Yan glanced at the red label. “I want strength I can use to leave Ashfall and pay for my sister’s care.”
Gu’s gaze lifted. “Those are reasons to study. They are not reasons to ignore a warning.”
“I’m not ignoring it.”
“Many people say that before they do.” Gu turned the book so the warning faced them both. “This method directs force through the marrow. If it works as written, the strike can break stone braces.”
“How?”
“By compressing the body’s own force into the bones and releasing it through the arm. The marrow bears the pressure before the fist does.”
Yan looked at the red words again. “And the third circulation?”
“Consumes the structure that carries it. That is the warning. A body may endure one or two turns and fail on the third. The damage is not a soreness that passes after sleep.”
“Can it be repaired?”
Gu’s hand shook once as he reached for the tea. “I don’t know. The old notes call the bone failure permanent. They say the practitioner cannot support ordinary cultivation afterward.”
Yan sat opposite him. “What if the count is wrong?”
“Then the count must be checked.” Gu’s voice sharpened. “A missing breath mark might redirect the force into the spine. The red ink is not decoration.”
The librarian had once been a researcher. His margin notes covered three old catalog leaves, each written in a different hand. A list of names had been crossed out where apprentices had declined to work with him. One page carried a fresh tea ring over a diagram he had copied years ago. Gu moved that sheet away from the Ashen Marrow text before the damp could touch it.
Yan watched him take the time to protect a page he could barely read. “How much do you know about this method?”
“Enough to know I should not tell you to try it.”
“Would you tell me if it were safe?”
“I would tell you if I had evidence. I have a warning and a damaged copy.” Gu leaned back. “You want strength. I wanted to understand old methods. Wanting has never made a missing page reappear.”
Yan traced the edge of the table with one finger. The manual had promised force but placed a lasting cost beneath it. The warning could be real even if his own body had already changed in ways no one understood. He would not pretend the red ink was empty.
“Can we compare it with an older reference?”
“Tomorrow. I need the older shelf key, and I want to look at the catalogs before I say anything about the pages.”
“Can I read the activation sequence?”
“Not today.” Gu closed the cover and set a paper weight over it. “I won’t let you practice from a damaged copy alone. We will see whether the text is complete and whether its steps agree with anything else.”
The library bell rang. Apprentices rose from the public tables and returned their books. Gu did not move the manual toward Yan.
“You’re not keeping it?” Yan asked.
“I’m keeping it here until we know what it is. It came from a crate marked nonrecoverable. That does not tell us whether the writing is worthless or dangerous.”
“Could I help carry it to the upper table? The light is better there.”
Gu hesitated, then nodded. “Take the bottom of the crate. I’ll carry the tea.”
Yan slid his arms under the crate. The wet side panel gave way with a low crack. Old catalog slips scattered across the floor. He caught the manual against his chest while Gu reached for the teacup. The cup stayed upright; Gu missed the papers.
“Your priorities are clear,” Yan said.
“My tea is warm.” Gu looked at the slips. “The records are old.”
They both laughed. Gu set the tea safely on the table, then crouched to gather the papers. Yan kept the manual in both hands until Gu moved the rest of the crate away. The light from the upper window fell across the label, showing where the red ink had sunk into the fibers.
They sorted the slips by paper color. Some had dates; others carried only shelf marks. Gu set them in two piles without trying to fit them into a story before he had read them. Yan passed him each one and waited when Gu needed a moment to steady his hand.
When the last slip was collected, Gu placed the manual on the upper table but did not open it. “Come back tomorrow after your shift. We will compare the references.”
“I’ll come.”
“Do not try to copy the red warning and practice from memory.”
“I won’t.”
Gu studied him as if weighing the answer. Yan left the manual where the light was good and the table was dry. He had found a possible source of power and a guide who insisted on understanding every line before use. The warning remained clear. He wanted to know what the method promised, but he would not make himself unable to care for Ning in exchange for a guess.