I Was Marked By The System's Arbiter

Chapter 126: Chapter 126: You Were Already Here

The Old Library smelled like dust that had given up settling.

Lin Yue spread the notes across the reading table in the order he always used — earliest to latest, left to right, so that if a pattern existed it would have to reveal itself the same way a sentence did, one word walking into the next. The desk-orientation diagram. Ning Yue’s notebook fragments, copied out in Su Qing’s careful hand now that Ning Yue no longer existed to keep her own. The shadow’s path, marked in Bai Wuyin’s charcoal. The classroom numbers, circled where they repeated. The riddle, folded and refolded so many times the crease had gone soft as cloth.

Eight classrooms face the rain. Seven windows know your name. Six notebooks hide one page. Five shadows leave no stain.

He laid a finger against the fourth line and left it there, thinking.

"Anything?" Su Qing asked. She sat across from him, elbows on the table, not quite steady. Nobody at this table was steady tonight. Ning Yue’s death had done that — quiet, quick, no blood, and somehow worse for it — and Tang Li’s after her had made the quiet feel less like an accident and more like a policy.

"Classroom 3-7 again," Lin Yue said. "It’s in the notebook page. It’s in the shadow’s bearing. It’s not on any map we’ve drawn, and it keeps showing up in places that were never supposed to lead there."

"That’s not a coincidence anymore," Su Qing said. "That’s a sentence."

"I know." He didn’t look up. "I just don’t know what the sentence says yet."

Across the table, Shen Rui had his head down on folded arms, not quite asleep, one eye cracked toward the door the way it had been every night since the dormitory footsteps started stopping at people’s rooms instead of just passing them. Ye Xian sat beside him, unbothered as always, flipping through a stack of library index cards like they were a deck for a game only he knew the rules to. Mo Jun stood near the far shelves with He Yuan, his voice pitched low and even, the same rehearsed calm that had started making Su Qing’s jaw tighten every time she heard it.

Bai Wuyin sat next to Lin Yue, sketchbook open, saying nothing.

He’d been saying nothing for a while now.

"Didn’t this shelf look different before?" he asked suddenly, glancing up — not at Lin Yue, at the tall case of biography spines against the far wall, half in shadow. His voice came out thin and uncertain, exactly the register he used in front of the others. Frightened. Twelve.

"Which shelf," Shen Rui mumbled, not lifting his head.

"That one. By the philosophy section." Bai Wuyin’s finger hovered, didn’t quite point. "It used to sit flat against the wall."

"Everything in this library shifts, Xiao Bai," Shen Rui said, with the exhausted patience of someone repeating a rule he no longer believed applied. "Try not to count every shelf."

"...Okay," Bai Wuyin said, and went quiet again, and looked back down at his sketchbook.

Nobody else glanced at the shelf a second time.

Lin Yue did.

He didn’t say anything either — not yet. He’d learned across enough instances now, enough shared silences at 3 a.m. with only Bai Wuyin awake beside him, that when the boy asked an "innocent" question in front of the group, it was never actually innocent. It was a hook thrown out to see whether anyone else had noticed what he’d noticed. When nobody bit, Bai Wuyin let it go without pressing — and Lin Yue let him, because pressing in front of the others would have cost them both the one advantage they had left: that nobody here yet suspected exactly how much the frightened child understood.

But he watched Bai Wuyin’s eyes flick back to that shelf twice more over the next twenty minutes, quick and sideways, the way a person checked a door they didn’t want anyone to know they were watching.

He filed it away — no. He set it aside. Somewhere he could find it again without needing to be told twice.

—————————————————

It was another hour before the room thinned out enough for anyone to slip away unnoticed, and by then Lin Yue had stopped expecting Bai Wuyin to wait for permission.

He should have known better. He’d known Bai Wuyin long enough, across enough instances, to understand exactly how the boy’s curiosity worked — quietly, patiently, right up until the moment it stopped being patient at all.

Mo Jun and Su Qing had drifted toward the archive shelves, arguing in low voices about the six notebook pages. Shen Rui had finally given in to sleep, head pillowed on his own arm, and Ye Xian sat beside him with a card balanced between two fingers, turning it over and over without looking at it, watching the room instead with that easy, unreadable attention he always seemed to have to spare. He Yuan had gone to refill his water at the corridor fountain.

For perhaps ninety seconds, nobody in the library was looking directly at the biography shelf, or at the twelve-year-old boy crouched in front of it.

When Lin Yue looked up from the riddle sheet, the chair beside him was empty.

He didn’t feel it right away as an alarm. He felt it, first, as a small, specific wrongness — the kind he’d trained himself to notice before it had a name. Bai Wuyin’s sketchbook was still on the table, open to a half-finished page. His charcoal sat beside it, capped. He never left either behind. Not once, not in five instances.

Lin Yue stood.

"Su Qing," he said, quiet enough not to wake Shen Rui. "Have you seen Bai Wuyin?"

She looked up from the archive shelf, blinking the question into focus. "He was right there a minute ago."

"He’s not now."

Ye Xian’s card stopped turning. "Bathroom, maybe," he offered, though something in his voice didn’t sound like he believed it either.

"He doesn’t go anywhere without telling me," Lin Yue said, and heard how flat it came out, and didn’t correct it. It wasn’t dramatic. It was simply true, and had been true since the first week of this instance, since long before that in the ones before it. Bai Wuyin left rooms quietly, constantly, unnoticed by everyone but him — but he never left without at least a glance, a word, some small acknowledgment meant only for Lin Yue to catch.

There’d been no glance tonight.

Lin Yue crossed the room toward the shelf Bai Wuyin had asked about, the one nobody else had bothered to look at twice.

The floor in front of it told him everything he needed before he even crouched down.

Dust, disturbed in a fan-shaped sweep along the base of the case — not the settled, undisturbed dust that coated the rest of the floor, but a fresher scattering, still faintly rearranging itself in the library’s dead, still air. A narrow gap showed between the shelf’s back edge and the wall behind it, barely wide enough to notice unless you were looking, the kind of gap that told you a thing had been pushed and not quite pushed back into place.

He pressed both palms flat against the case and shoved.

It didn’t move.

He tried again, harder, feeling the muscles across his shoulders pull tight with the effort, and the shelf held as solidly as if it had never budged in its life — as if the opening Bai Wuyin had found, and slipped through, had already sealed itself shut the moment he crossed to the other side.

"Lin Yue?" Su Qing’s voice, closer now, edged with something that hadn’t fully become fear yet.

"He went through here." Lin Yue didn’t look away from the shelf. "The shelf’s a door. It’s shut now."

"Shut how? It’s a bookcase—"

"I don’t know how." His jaw tightened. "I know it opened for him and it isn’t opening for me."

Ye Xian was on his feet now too, Shen Rui blinking awake beside him at the shift in the room’s tension. Mo Jun and He Yuan had both turned from the archive shelves, drawn by the sharpness in Su Qing’s voice even from across the room.

"What’s wrong?" Mo Jun asked, already moving toward them with that same unhurried, teacherly calm — the calm that, tonight, made Lin Yue’s skin want to crawl right off him.

"Bai Wuyin’s gone," Su Qing said. "Behind that shelf."

"Gone where?" Shen Rui was up now too, alarm cutting cleanly through the sleep in his voice. "Xiao Bai doesn’t just—"

"I know," Lin Yue said, and the two words came out with more weight behind them than he’d meant to give them, enough that Shen Rui actually stopped talking.

He pressed his palms to the case again, searching now instead of shoving — along the seam where it met the wall, along the base, along the ornate molding at its top, looking for whatever mechanism had let it move once and refused to move again.

His fingers found a groove near the shelf’s lower right corner, worn smooth in a way none of the rest of the wood was worn. A place something had been gripped and pulled, over and over, by more than one hand across more than one lifetime of this library existing.

He gripped it and pulled.

Nothing.

"Move," Ye Xian said, and put his shoulder against the case beside Lin Yue’s without waiting to be asked. Between the two of them, the shelf groaned, shifted half an inch, and then locked again like something inside it had made a decision.

"It’s not stuck," Lin Yue said through his teeth. "It’s refusing."

"Refusing what?"

"Us."

—————————————————

Behind the shelf — though none of them standing in the library that night would ever know exactly how far behind, or in what direction that word had stopped meaning anything useful — Bai Wuyin stood very still in a corridor that had no business existing.

He’d expected darkness. A crawlspace, maybe, some narrow gap between walls the way the school liked to hide things in places too small to be comfortable. Instead the passage opened out into a proper hallway — narrower than the ones upstairs, cleaner, the floor free of the dust that coated everything in Yinshan Academy like a second skin. Fluorescent lights buzzed overhead, old-fashioned tube fixtures, burning far brighter than they should have for their age.

Shoe marks tracked the floor’s pale tile. Dozens of them, overlapping, faint but distinct, all leading in the same direction.

He should have gone back the moment he saw them.

He knew that even as he crouched to look closer, running one finger just above the surface of a print without touching it — small feet, school shoes, the kind the academy issued to every student on arrival, though none of the twelve players had ever worn them. Every rule they’d learned so far said stay together, stay in sight, never let curiosity outrun caution.

He’d broken all three before he finished the thought.

"Just one look," he murmured to himself, low enough that even an empty hallway wouldn’t carry it far, and followed the shoe prints deeper in.

The corridor bent once, gently, and ended at a door.

It looked wrong the way a missing tooth looked wrong — not damaged, just absent of something a door like it should have had. No number. No plaque. Only a small rectangular discoloration on the wood where a sign had clearly hung once, faded pale where the sun-bleached grain around it had darkened with age.

Bai Wuyin stood in front of it for a long moment, sketchbook held loose against his chest, and thought — with the same flat, unhurried clarity he brought to everything — that he should turn around now.

He didn’t.

He opened the door.

The classroom inside had stopped, mid-breath, at some point long before he was born.

Desks in even rows, chairs pushed in at identical angles. A blackboard at the front, chalk dust still clinging faintly to its lower ledge. A teacher’s podium, empty. Notebooks open on every desk, pages yellow-edged but otherwise untouched by time in any way that made sense.

And students.

Bai Wuyin’s breath caught, just once, just barely — the only outward sign, in a room with no one left to witness it, that anything about this had unsettled him at all.

Dozens of them. Seated, upright, silent, filling every desk but one. Their uniforms were correct in every detail he could name — the same cut, the same faded navy the academy still issued — but their faces refused to hold still under his gaze, blurring at the edges the way a word did if you stared at it too long, splitting apart into letters that no longer meant anything. Some had their heads bowed over open notebooks. Some sat with hands folded, waiting. A few had no features at all where a face should have been — just a pale, smooth absence, patient as a held breath.

None of them moved.

None of them made a sound.

Bai Wuyin stood in the doorway and understood, with the same clean, unshaken clarity he understood everything, that he had just walked into something the entire academy had been quietly building toward since the first morning they’d woken here.

He took a slow step inside.

The desks did not turn to look at him.

Their faces did.

It happened all at once, without the scrape of a single chair, every blurred and half-formed head tilting toward him in the same instant, as if a single unseen hand had adjusted every one of them like pieces on a board. Bai Wuyin’s pulse spiked — a fast, unwilled thing, the closest his body came anymore to open fear — and he made himself hold still, made himself breathe, made himself keep watching instead of running, because running from something that hadn’t moved yet was how you taught it to move.

They didn’t rise. They didn’t reach for him.

They looked, all together, toward the front of the room.

Bai Wuyin’s gaze followed theirs.

One desk sat empty at the front-center of the room, angled slightly differently than the rest, its chair pulled halfway out as if someone had only just stepped away from it. Every other desk in the classroom faced that single point.

Waiting.

Then, in perfect unison, every ghost-student in the room lifted one hand.

Not toward Bai Wuyin. Toward the desk.

An offering. An invitation. A gesture so quiet, so courteous, that it took Bai Wuyin a full three seconds to understand exactly how horrifying it was — that nothing here intended to hurt him at all. It only intended to seat him.

"This isn’t trying to kill me," he said aloud, very softly, mostly to hear the thought settle into words. "It’s trying to enroll me."

The blackboard began to write.

No hand held the chalk. It simply moved, dragging a thin white line across the slate in a slow, patient scrawl, the sound of it dry and small in a room otherwise gone completely silent.

ATTENDANCE

Bai Wuyin took a step back without deciding to.

Names followed, one after another, in the same unhurried hand — names he didn’t recognize, none matching any player, none matching any NPC the group had met. Eight of them, in total, appearing and then simply remaining, waiting the way the empty desk waited.

Then the chalk stopped.

A blank line sat beneath the eighth name.

Bai Wuyin stared at it, and understood, with a cold and total certainty, exactly what came next.

The chalk moved again.

B A I . . .

He backed another step toward the door, sketchbook clutched hard enough against his chest that the cardboard backing creaked.

W U Y . . .

For the first time since he’d stepped into this room — for the first time in longer than that, if he was honest, longer than this instance, longer than the last one — his carefully composed stillness cracked straight down the middle.

Not panic.

Recognition.

"No," he whispered.

The chalk stopped.

The silence that followed was total, absolute, the kind of silence that had weight and pressed down on the ears like water. And then every ghost-student in the room turned, all together, toward the empty desk at the front.

The chairs scraped backward in one single, deafening motion.

The empty desk lifted an inch off the floor and slid — not dragged, not pushed, simply moved, the way a held breath simply stops being held — directly toward Bai Wuyin.

—————————————————

In the library, Lin Yue had stopped trying to reason with the shelf and started trying to break it.

"There has to be a mechanism," he said, more to himself than to anyone listening, running his hands along every seam of the case a second time, a third. "It opened once. Something triggered it."

"Maybe it only opens from that side," Ye Xian said, low.

"Then we find what makes it open from this one." Lin Yue’s voice had gone flat in the particular way it did when the analytical part of his mind was working faster than the rest of him could keep pace with — a tone Su Qing had learned, over the past weeks, meant he was afraid and would rather solve the fear than feel it. "Su Qing. The riddle sheet. Line five."

"’Five shadows leave no stain,’" she read, already pulling it from her coat.

"No. The next one down." He didn’t look up from the shelf. "’Four teachers teach no lesson.’ It’s not about a teacher. Mo Jun—" His head came up sharply toward the man standing a few paces back, arms folded, watching this unfold with an expression that gave away exactly nothing. "You said the desk taps a rhythm you half-remember teaching. Say it again. Now."

Mo Jun’s jaw tightened, just slightly. "I don’t see how that—"

"Say it."

Something in Lin Yue’s voice — controlled, but with an edge underneath it none of them had heard from him before tonight — made Mo Jun actually comply. He tapped it out against his own palm, three short, one long, the rhythm he’d claimed, days ago, belonged to a dismissal signal from a lesson structure he couldn’t place.

Nothing happened.

Lin Yue exhaled hard and abandoned the theory before it had finished failing.

"Forget the rhythm." He pressed both hands flat to the case one more time, and this time didn’t push — just held still, the way he’d taught himself to hold still in front of every locked, wrong thing this school had shown them so far, letting his palms read what his eyes couldn’t. "It’s not a lock. It’s a door that decides who’s allowed through."

"Then how did Bai Wuyin get through it?" Shen Rui’s voice had gone thin, stretched tight over something close to panic. "He’s twelve. If it’s choosing who gets in based on—on anything, why him?"

Lin Yue didn’t answer that. He didn’t have an answer that wouldn’t have made it worse.

He stepped back from the shelf instead, forced his breathing even, and made himself look at it the way he’d look at any locked door in any instance — not as a wall, but as a puzzle with an intended solution, because everything in this school had one, even when it pretended otherwise.

His eyes caught on the groove near the corner again. The worn place where hands had gripped it, over and over, across more years than the six of them standing here had lived combined.

Not pushed. Pulled.

"It doesn’t open outward," he said slowly. "It opens the way something goes in. Not the way something’s let back out."

"That’s not helpful," Ye Xian said, tense.

"It’s the only thing I have." Lin Yue set his shoulder against the case, angled differently this time, and threw his weight into it the way he would have thrown himself at a door he intended to break rather than open politely. "So we don’t ask it to let us in gently."

The shelf groaned. Resisted. Held.

"Again," he said, and this time Ye Xian and Shen Rui both threw their weight in with him, three bodies against a bookcase that had no earthly reason to fight back this hard — and yet it did, wood creaking under a strain that felt less like furniture and more like something gritting its teeth.

On the far side of that wood, at that exact moment, the desk reached Bai Wuyin’s ankles.

—————————————————

He felt the cold of it first — not a touch exactly, more the pressure of something settling against him without quite making contact, the way standing too close to an open freezer felt before you noticed the air itself had changed. The desk stopped an inch from his shoes and simply waited there, patient as everything else in this room, angled precisely so its seat faced him.

Sit down, it seemed to say, without saying anything at all. You’re already on the list.

Bai Wuyin’s mind, even now, kept working the way it always worked — cataloguing, comparing, refusing to let the fear win outright even as his pulse hammered hard enough to feel in his throat. The names on the board. Eight, filled. A ninth, his, half-written. This wasn’t random. This was a class that had been exactly one seat short for longer than he wanted to think about, and it had simply been waiting — patient, polite, endlessly patient — for someone to walk close enough to fill it.

He forced himself to take a step back.

The desk followed.

Behind him, dozens of blurred faces turned in the same silent unison, tracking his retreat the way water tracks a drain.

"I’m not sitting down," he said, and his voice — flat, quiet, deliberately steady even now — was the closest thing to defiance the room had heard since he’d walked in.

The chalk began moving again. Faster this time.

STUDENT PRESENT.

STUDENT PRESENT.

The desk pressed closer, and this time Bai Wuyin felt it against the back of his knees, an insistent, gentle pressure that had no visible source, urging him downward the way a hand on a shoulder urged a reluctant child toward a chair.

He locked his knees and did not sit.

Somewhere far away, muffled through what felt like more than a wall, he heard it — a groan of old wood, three voices straining against something, and beneath all of it, faint but unmistakable, Lin Yue’s voice raised in a shout he couldn’t make out the words of.

Bai Wuyin’s chest tightened with something that wasn’t fear of the classroom at all.

"Lin Yue," he said, barely a whisper, and for the first time since he’d stepped through that shelf, he let himself hope loudly enough that even a room built to erase hope might overhear it.

—————————————————

The shelf gave all at once, the way something that has resisted too long finally does — not gradually, but completely, all three of them stumbling forward into the gap it left behind as if the wood itself had simply changed its mind.

Lin Yue didn’t stop to feel relief. He was through the opening before Ye Xian had finished catching his balance, into a corridor that smelled wrong — too clean, too bright, the fluorescent hum overhead pitched a half-tone higher than anything upstairs.

He ran.

The shoe prints on the floor blurred past under him, the corridor bending once, and then the door was there — unnumbered, unmarked, standing ajar in a way it hadn’t been when Bai Wuyin first found it, as if the room itself had opened a hand to let him see exactly what it had taken.

Lin Yue didn’t slow down to look. He went straight through.

The classroom hit him like cold water — the sheer wrongness of dozens of faces turning toward him in one motion, the desk pressed against Bai Wuyin’s legs, the chalk still scratching out its slow, relentless attendance across a blackboard with no hand behind it. He took all of it in the space of a single breath, the way he took in every room this instance had thrown at them, and none of it slowed him down for even a second.

"Bai Wuyin."

The boy turned. For the first time all instance — all five instances, if Lin Yue let himself think about it — there was nothing performed in his expression at all. No frightened-child act. No composed observer. Just real fear, plain and unguarded, looking back at him.

"Lin Yue," Bai Wuyin said, voice cracking on it.

The classroom reacted instantly.

Every blurred head turned, in the same silent unison, from Bai Wuyin to Lin Yue. The empty desk shuddered and reversed, sliding back a foot as if reconsidering its choice. The chalk froze mid-stroke on the board, erased Bai Wuyin’s half-finished name in one long white sweep, and began again.

L I N . . .

"No," Lin Yue said, low and flat, and crossed the room in four strides, closing his hand around Bai Wuyin’s wrist. "We’re leaving."

Bai Wuyin didn’t move.

Not because he refused. Lin Yue felt it the instant he pulled — the boy’s feet simply didn’t come with him, planted as if the floor itself had grown roots around his shoes. He looked down. The tile beneath Bai Wuyin’s feet had gone soft with names, dozens of them, chalk-written and overlapping, crawling up around his ankles like something alive.

Pale hands began rising from beneath the nearest desks, reaching for him.

"Lin Yue," Bai Wuyin said again, and this time it wasn’t fear in his voice so much as warning. "It’s pulling you too."

Lin Yue looked down at his own wrist, where his hand still gripped Bai Wuyin’s. A thin black mark had begun forming beneath his skin, right at the point of contact — faint, spreading, like ink bleeding through wet paper.

He didn’t let go.

"Then it can pull," he said, and yanked, hard enough that something in his shoulder screamed, hard enough that Bai Wuyin stumbled a half-step free of the chalk-crawled floor before the hands beneath the desks found purchase around his ankles again and hauled him back.

The blackboard cracked, a jagged white line splitting it top to bottom.

STUDENT PRESENT.

STUDENT PRESENT.

STUDENT NOT RETURNED.

Every ghost-student rose from their seat at once, chairs shrieking backward across the floor in a single, deafening scrape that seemed to come from every direction and none. The lights overhead began to fail one by one, popping into darkness down the length of the room, the classroom’s edges bleeding into black where the fluorescent tubes had been.

"Lin Yue, let go—" Bai Wuyin’s voice had gone thin with something Lin Yue had never heard from him before. Real panic. Not for himself.

"No."

"It’s not going to release both of us—"

"I don’t care."

Lin Yue’s eyes found the empty desk, still hovering at the room’s dead center, still angled precisely toward the space where Bai Wuyin should have been sitting. Everything in this room orbited that one piece of furniture — the names, the attendance, the hands reaching up from beneath the floor. If the desk was the room’s anchor, then the room’s grip broke with the desk.

He let go of Bai Wuyin’s wrist with one hand — kept the other locked around it — and lunged for the desk with everything he had left.

It fought him. It fought him the way the bookshelf had fought him, wood groaning under a weight that made no physical sense, the whole room shuddering as he wrenched it up and over, the crash of it hitting the floor loud enough to shake dust from the cracked blackboard above.

Underneath it: a carved list. Eight names, seven crossed through in the same patient, unhurried hand as everything else in this room. One left blank.

Bai Wuyin’s name had already begun forming in it, letter by letter, chalk-pale against old wood.

Lin Yue tore the desk apart with his bare hands before it finished. Splinters bit into his palms; he didn’t feel them. The name broke apart mid-letter, unfinished, and the entire room answered with a violence that hadn’t shown itself until that exact second.

The ghost-students surged forward — not toward the door, not scattering, but toward him, dozens of hands reaching, not for Bai Wuyin now but for Lin Yue himself, as if the room had simply recalculated who it wanted to keep.

His vision fractured for one impossible instant.

He saw himself sitting among them. A uniform he’d never worn. A notebook open in front of him, his own handwriting filling its pages in a hand he didn’t remember using. Attendance being called, name after name, closer and closer to his own.

"Lin Yue."

A voice, calling him, patient, expectant.

He almost answered.

"Don’t!" Bai Wuyin’s grip closed around his arm, sharp enough to hurt, sharp enough to cut through whatever the room had been folding around him. The fracture in his vision snapped shut. He was standing in the ruin of a broken desk again, palms bleeding, Bai Wuyin’s hand locked around his arm instead of the other way around.

"The door," Lin Yue said, and his voice came out rougher than he meant it to. "Now."

The doorway had drifted, the way everything in this instance drifted when it didn’t want to be found — farther than it should have been, the corridor beyond it stretching longer with every step they took toward it. Lin Yue didn’t stop to measure the wrongness of it. He simply grabbed Bai Wuyin bodily and threw him through the gap before the room could decide to close it, then followed a half-second behind, close enough that something closed around his wrist right at the threshold and held on.

The mark burned — a sudden, sharp heat, like a brand pressed and lifted in the same instant.

He looked back, once, because some part of him needed to know exactly what he was leaving behind.

Every ghost-student stood facing the door now, faces still blurred, still silent, still watching. The empty desk had righted itself, whole again, angled toward the doorway instead of the room’s center. On the cracked blackboard, one final line had appeared, in a hand steadier than any of the others.

YOU WERE ALREADY HERE.

Lin Yue’s stomach dropped somewhere it hadn’t dropped in a long time.

There was no time to ask what it meant. He tore his wrist free of whatever had held it, felt the give as much as heard it, and the door slammed shut behind him with a finality that shook dust from the corridor’s ceiling.

Then the bookshelf crashed back into place — from this side, from the library’s side, wood meeting stone with a sound like a held breath finally exhaled.

—————————————————

The group surrounded them the instant they stumbled free of the gap, questions overlapping, Shen Rui’s hands hovering like he wasn’t sure whether he was allowed to touch either of them to check they were real. Bai Wuyin dropped to his knees the moment his legs would let him, immediately reaching for Lin Yue’s arm before anyone else could get a word out.

"Let me see it," he said, voice still raw, still stripped of every ounce of performance.

Lin Yue held his wrist out without arguing.

The mark was visible even in the library’s dim light — dark, ink-black lines threaded just beneath the skin, curling in a shape that, if you looked at it long enough, resolved into something horribly specific. Rows. Columns. The outline of an attendance stamp.

"What happened," Su Qing said, quiet, careful, the question aimed at both of them at once. "What was in there?"

Lin Yue looked at Bai Wuyin. Bai Wuyin looked back, and something passed between them that needed no words — an agreement neither of them had to make out loud.

"A classroom," Lin Yue said. "Sealed. It doesn’t attack. It enrolls." He didn’t elaborate further. He didn’t mention the sentence still burning itself into the back of his mind, the one he had no intention of repeating to anyone tonight. You were already here.

Bai Wuyin said nothing about what he’d seen either — the names, the eight crossed-out students, the desk that had chosen him first. That conversation, if it happened at all, would happen later, in Room 201, with the door shut and no one else listening.

For now, the only thing that mattered was that Bai Wuyin’s hands hadn’t stopped shaking since they’d cleared the doorway, and that Lin Yue hadn’t stopped watching him since either.

"I shouldn’t have gone in," Bai Wuyin said finally, quiet, eyes down.

"No," Lin Yue said.

Bai Wuyin looked up at that, startled by the flatness of it.

"You shouldn’t have gone in alone," Lin Yue said.

It wasn’t the correction Bai Wuyin had braced for. Something in his face shifted — understanding, maybe, or the beginning of it. Lin Yue wasn’t angry that he’d broken a rule. He was angry — quietly, thoroughly, in a way that showed itself only in the clench of his jaw and the way his uninjured hand hadn’t unfolded from a fist since they’d crossed back through the shelf — because Bai Wuyin had nearly vanished without Lin Yue ever knowing it was happening.

"I thought I could get back," Bai Wuyin said, so softly it barely carried.

Lin Yue looked down at the mark still cooling against his own skin.

"So did Ning Yue."

The words landed heavier than either of them expected. Bai Wuyin’s eyes dropped again, and for once he didn’t reach for the frightened-child act to hide behind. He simply let the silence sit, because there was nothing performed left in him to offer instead.

Su Qing watched the two of them with an expression that suggested she was recalculating something she’d taken for granted about Lin Yue — the same careful, quiet attention she gave everything lately. This was the first time, in the whole of this instance, that his composure had visibly cracked in front of the group. Not tears. Not raised voice. Just the white-knuckled grip of his hand, the unevenness of his breath, the way he checked Bai Wuyin twice in the space of a minute as if needing to confirm, over and over, that he was actually there.

He didn’t let Bai Wuyin more than an arm’s length away for the rest of the night.

—————————————————

Later, alone, Lin Yue examined the mark by lamplight while Bai Wuyin sat cross-legged on the floor beside his bed, sketchbook open but untouched.

It didn’t behave like an ordinary injury. When he turned toward the classroom wing of the building, even through two floors and a stone wall, the lines darkened, sharpening at the edges. When he faced the library instead, they faded, thinning almost to nothing. For one unsettling moment, angled just right toward the academic building, the pattern beneath his skin resolved into something that looked, unmistakably, like a floor plan.

"It’s not finished," Bai Wuyin said quietly, watching. "There’s a blank space in it. Like part of it hasn’t decided what it’s going to be yet."

Lin Yue didn’t ask him how he knew that. He suspected, by now, that Bai Wuyin simply saw things that hadn’t announced themselves yet — a talent that had kept them both alive across five instances and would likely keep them alive through however many remained.

"It let me go," Lin Yue said.

"It let you leave," Bai Wuyin corrected, without looking up. "That’s not the same thing."

Neither of them said anything else about it that night.

—————————————————

The bookshelf, when they checked it the next morning, sat flush against the wall as if it had never moved in its life. No seam. No gap. No trace at all that a door had ever existed there, or that a room full of waiting students lay somewhere behind it.

The group stood in front of it anyway, unwilling to simply walk away, the way you couldn’t quite walk away from a grave even after the ground had settled.

Then they heard it.

Faint at first, muffled through wood and stone the way it shouldn’t have carried at all — a classroom. Students reciting in unison, the rhythm of a lesson too worn-smooth to be a first hearing. A teacher’s voice, calling roll, name following name in patient, unhurried succession.

Everyone froze.

The names kept coming, each one landing into silence; none of them answered. Then the recitation paused.

"Lin Yue."

Nobody moved. Nobody breathed.

A second voice, identical in rhythm, repeated it into the stillness.

"Lin Yue."

Still nothing answered from their side of the wall — and yet, somehow, that only seemed to satisfy whatever waited behind it. The pause stretched, and then dozens of voices spoke together, low and even, in perfect unison.

"Present."

Lin Yue’s expression didn’t change. It didn’t need to. Beside him, Bai Wuyin’s hand found his sleeve and gripped it, hard, without a word.

The bookshelf gave one small creak, as if settling — or as if something on the other side had simply leaned its weight against the door and found it, for now, closed.

Then the voices began again, patient as ever, calling the same name into a silence that refused to answer.

"Lin Yue."

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