Chapter 1: The Student Who Walked Through Walls

The carriage stopped at the foot of Cloud Summit Mountain, and Bai Su's father handed her the bamboo basket with two days' worth of dried mantou. "Study hard," he said. "Make us proud."

She nodded, watching his cart rattle back down the winding dirt road until dust swallowed it whole. When she turned to face the academy gates, her stomach did something unpleasant.

Wutong Academy rose from the mountain mist like a sleeping beast. Its walls were weathered grey stone, crawling with moss so old it had turned black. The main gate stood open—two massive wooden doors carved with scenes of scholars taking examinations, their brush strokes frozen mid-character. Above the entrance, a plaque declared in gold-leaf calligraphy: BY KNOWLEDGE, EVEN THE DEAD MAY PASS.

Bai Su shifted her bundle on her shoulder and walked through.

The courtyard sprawled before her, cobblestones slick with morning dew. A gingko tree dominated the center, its leaves just beginning to yellow at the edges. To her left, a lecture hall with paper windows. To her right, dormitories built in the southern style, their curved eaves reaching toward the grey sky.

Students milled about in small clusters. Most wore the same plain grey robes she did—new students, like her. A few older ones in blue carried scrolls and debated something about the Analects.

Bai Su took a breath. She could do this. She had passed the entrance examination. She belonged here.

A boy in grey robes walked straight toward the gingko tree.

Not around it. Through it.

The trunk swallowed him whole for one impossible heartbeat, then spat him out the other side. He emerged with his hair slightly tousled, adjusting his collar as if nothing had happened.

Bai Su's bundle hit the cobblestones.

She stared.

A girl beside her—living, judging by the warmth radiating from her skin—glanced over. "Are you alright?"

"That student," Bai Su managed. "He just walked through—"

She stopped. The girl was looking at her like she'd grown a second head.

"Walked through what?"

Bai Su turned back to the gingko tree.

The boy was staring directly at her.

His eyes widened. His mouth formed a perfect O.

Then he started walking toward her.

Through three other students. One of them shivered and pulled his collar tighter, muttering about the mountain cold.

"Don't," Bai Su whispered, but her voice came out strangled.

Too late.

The boy reached her, stopping barely a foot away. Up close, she could see the blue tint to his lips. The way the morning light passed through him, casting no shadow on the stones beneath his feet. The lingering smell of river water and something rotting.

"You can see me?" he asked.

His voice sounded like stones dropping into a deep well.

The girl beside Bai Su looked at her funny. "See who?"

"No one," Bai Su said quickly. "I'm fine. Just tired from the journey."

The girl shrugged and walked away, joining a group of new students heading toward the dormitories.

Bai Su stood frozen, staring at the ghost.

"You can actually see me," he repeated, wonder coloring his hollow voice. "That's— that's never happened before. I've been here for—" He paused, counting on his fingers. "—twelve years? No, thirteen. Time gets strange." He laughed, a wet, gurgling sound. "What's your name?"

"Bai Su."

"Bai Su." He tested the name on his tongue, then smiled. It was not a reassuring smile. His teeth were grey. "Welcome to Wutong Academy. I'm Liu Wei. I drowned in the river behind the east library during my third year. Failed the provincial examination three times before that. The water gets into your lungs and you realize all those Confucian maxims don't help you swim."

Bai Su's hands were shaking. She pressed them flat against her thighs.

"I'm not supposed to be able to see you," she said. "Only monks and priests can see ghosts. I'm just a student."

Liu Wei tilted his head. "And yet."

She forced herself to breathe. In through the nose. Out through the mouth. Her mother's voice echoed from childhood: *When you panic, anchor yourself to something solid.*

She anchored herself to the cobblestones beneath her feet. The weight of her bundle. The distant sound of a bell ringing from the lecture hall.

"I need to find my dormitory," she said.

"Ding Hall." Liu Wei pointed toward the western buildings. "Third floor, fourth door on the left. Your roommate's name is Chen Xiaolian. She bites her nails when she studies. She's also the top new student this year."

Bai Su stared at him. "How do you know that?"

"I've been here thirteen years." Liu Wei shrugged, the motion sending ripples through his semi-transparent form. "I know everything about this academy. The living tend to forget ghosts are listening."

She should run. She should find a teacher and tell them she was hallucinating. She should—

"You should probably go," Liu Wei said, his voice dropping. "The Dean's morning assembly starts in fifteen minutes. First-day lateness gets you three strikes."

"How do you know the schedule?"

"I told you." His smile turned strange. "I know everything."

Bai Su grabbed her bundle and walked toward the western dormitories. She didn't run. Running would draw attention. But her legs moved faster than they needed to.

Behind her, she heard Liu Wei's voice float through the air: "See you around, Bai Su. We have so much to discuss."

She didn't turn back.

---

Ding Hall was a three-story wooden building that groaned in the mountain wind. Bai Su climbed the creaking stairs to the third floor, found the fourth door on the left, and pushed it open.

The room was small. Two beds. Two desks. A window that looked out onto the gingko tree. A girl was already there, hunched over a stack of books, her fingers in her mouth.

She looked up. Young, maybe fifteen, with sharp eyes and hair pulled into a severe bun.

"Chen Xiaolian?" Bai Su asked.

The girl nodded, pulling her fingers out of her mouth. "You're Bai Su. I saw your name on the roster." She gestured at the empty bed. "That one's yours. Don't put anything on the desk—I need the space for my study materials."

Bai Su set down her bundle. Her hands were still shaking.

Chen Xiaolian noticed. "Nervous?"

"Something like that."

"You shouldn't be. The entrance exam is the hardest part. If you passed that, the classes are manageable." She turned back to her books. "I've already read the first three chapters of the Confucian classics. If you need help catching up, I charge two copper coins per tutoring session."

Bai Su sat on the edge of her bed. The straw mattress rustled beneath her.

"Have you noticed anything strange about the academy?" she asked.

Chen Xiaolian didn't look up. "Strange how?"

"The students. Some of them seem..." Bai Su searched for the right word. "Cold."

"Cold?"

"Like they don't cast shadows."

Now Chen Xiaolian looked up. Her eyes narrowed. "What are you talking about?"

Bai Su hesitated. She barely knew this girl. But she had to tell someone. The weight of what she'd seen pressed against her chest like a stone.

"I saw a student walk through a tree," she said. "Through it. Not around. He disappeared into the trunk and came out the other side."

Chen Xiaolian stared at her for a long moment.

Then she laughed.

"That's ridiculous," she said, shaking her head. "You're probably just tired. The journey up the mountain is exhausting. I nearly fell asleep standing up when I arrived."

"It's not exhaustion. I know what I saw."

Chen Xiaolian's laughter faded. She studied Bai Su's face, her expression shifting from amusement to something more serious.

"There are rumors," she said slowly. "About this academy."

Bai Su leaned forward. "What rumors?"

"That some of the students never leave. That they stay here, year after year, even after graduation." Chen Xiaolian lowered her voice. "They say the library has books no living person has touched in decades. That the west wing is always cold, even in summer. That sometimes, at night, you can hear students reciting the classics in rooms that should be empty."

Bai Su's blood went cold.

"That's just stories," she said, but her voice wavered.

"Probably." Chen Xiaolian turned back to her books. "Every old school has its ghost stories. It doesn't mean they're true."

The bell rang. Three clear chimes.

"Assembly," Chen Xiaolian said, standing. "Come on. You don't want to be late."

Bai Su followed her out of the room, down the creaking stairs, across the courtyard toward the main lecture hall. The gingko tree cast its shadow over the cobblestones. She counted the students as they walked.

Thirty-seven in grey robes, new students.

Twelve in blue, older students.

And six others.

They walked together, their grey robes identical to hers. But they cast no shadows. Their feet made no sound on the stones. Their breath didn't fog in the cool mountain air.

None of them looked at her.

But she felt them watching.

---

The assembly was held in the Great Hall, a cavernous space lined with bamboo scrolls and portraits of scholars long dead. Candles flickered on every surface, casting dancing shadows across the walls.

Dean Weng stood at the front. Old, with a face like wrinkled parchment and eyes that seemed to look through you rather than at you.

"Welcome," he said, his voice carrying through the hall without effort, "to Wutong Academy. You have been chosen because you have potential. Because you have the discipline to succeed. Because you will pass the imperial examinations and bring honor to your families."

He paused, scanning the room. His gaze passed over Bai Su, and she felt a chill run down her spine.

"However," he continued, "success at Wutong comes with rules. First: you will not enter the west wing after dark. Second: you will not disturb the scholars in the library. Third"—his eyes grew sharp—"you will not speak of what you see."

Murmurs rippled through the students.

Bai Su's heart hammered.

"Some of you will notice things that seem unnatural," Dean Weng said. "You will hear whispers from empty rooms. You will see figures in the corner of your vision. You will feel cold hands brush your shoulders when no one is there."

He smiled. It did not reach his eyes.

"This is normal. Do not acknowledge it. Do not speak of it. Focus on your studies, and the academy will reward you. Disturb what should not be disturbed, and you will learn why the west wing is forbidden."

The hall fell silent.

Bai Su looked around at the other students. Some looked frightened. Some looked confused. A few—the ones who cast no shadows—looked amused.

Chen Xiaolian stood beside her, biting her nails.

"This is insane," she whispered. "What kind of school is this?"

Bai Su didn't answer.

Because behind Dean Weng, in the shadows of the stage, stood Liu Wei.

The drowned scholar.

He raised his hand and waved.

Then he pressed a finger to his grey lips.

*Don't tell,* the gesture said. *Or else.*

The assembly ended.

The students filed out, chattering nervously about the Dean's warning. Chen Xiaolian grabbed Bai Su's arm and pulled her toward the dining hall.

"Come on. I heard they serve pork buns today."

Bai Su let herself be dragged