← Table of Contents Chapter 9 · 13 min read

Chapter 09: The Hidden Library

I WENT LOOKING for Auri with honey in one hand and a defeat in the other.

The defeat was this: I had hit a wall. I had the bones of Denna’s song — seven intervals the wind had given me, wrapped around a hole — and I had Devi’s illustrated manual, and I had the fragment of knot-work Denna had scratched into a windowsill with her fingernail. I could read the simple cords now. Determiners. Common verbs. The Yllish a trader might tie to label a bale of wool. But the braid-language Denna wore in her hair was to trader’s knots what a fugue is to a fingering exercise, and the song’s structure was older still — every thread I pulled led backward, past Yll, past the Empire, into a dark where the Archives’ shelves had been emptied before I was born. Lorren guarded the front door of knowledge, and someone before him had carried half the house away through the back.

But catalogues and shelves are the surface of a university. Auri walked beneath all of it.

I found her, or let her find me, at the grate behind the Artificery, and I set the jar of lavender honey on the stone between us the way you’d make an offering at a small and particular shrine. She turned it in the moonlight, gravely, until the glass threw a little amber onto her wrist.

Then I asked. I told her about the song’s old bones, about the writing I couldn’t read, about the wall I’d hit. I asked if the Underthing knew anything older than the Archives.

Auri went very still. For a long moment she looked at me — entirely clear, present in the way that was both comforting and unsettling — and I understood that I had asked a much larger question than the one I’d meant to ask.

“Not tonight,” she said at last. “Tonight it’s sleeping. Tomorrow.” She touched the jar of honey with one finger, sealing some bargain whose terms only she could see. “Bring both your hands. Nothing else. Down there, things stay.”

“What things?”

“All the things.” She looked at me sternly, which on Auri is the sternness of a daisy. “Promise.”

I promised. It cost me more than I knew I was agreeing to. It would have been cheap at twice the price.


There was another price, and I want to be honest about it, because I was not honest with myself at the time.

Kilvin had a commission on my bench — a paired-lamp piece, four talents on completion, promised to a buyer who wanted it by morning. Four talents, with admissions balanced over my head like a headsman’s contract. The finishing work needed one long night, and the next night was the night Auri had named. I stood in the Fishery that evening with the housing half-inscribed under my hands, and I did the arithmetic every poor student knows by heart, and then I did a different arithmetic, older and stupider and, as it happens, correct.

I banked the forge, locked my tools, and went down into the dark.


Tonight she came carrying a candle.

A slender cylinder of pale substance that glowed without flickering, casting a light that was steady and cool and faintly blue, like starlight condensed into solid form.

“A brave thing,” she said, holding it out with both hands, as a child might offer a drawing. “For the deep-down.”

I took it. It was warm to the touch, warmer than the night air justified, and it smelled of clean stone and old water and a mineral sweetness, like honey made from flowers that grew in caves.

“Thank you, Auri.”

She nodded once. Then she turned, light as a leaf in a thermal, and dropped into the dark below the grate, and I heard the soft pad of her feet on stone, a sound no heavier than the memory of rain.

I followed.


I had been in the Underthing before. Many times, following Auri through her strange, careful kingdom of abandoned tunnels and forgotten rooms, each one named with a precision that suggested cartography more than whimsy.

Tonight, Auri took me somewhere new.

We passed the niche where Caesura slept wrapped in oilcloth — Auri had shown me the hiding place my first night back, when an Adem sword would have raised questions I couldn’t afford. My fingers brushed the bundle as we passed. Later. Not yet.

We descended through Cricklet, a narrow vertical passage that I navigated by feel, my shoulders scraping stone on both sides, the brave candle held in my teeth. The air changed as we went deeper. Warmer first, then cooler, then warm again. We were passing through layers of a sleeping body, each with its own temperature, its own breath.

We’d descended perhaps a hundred feet by the time we reached the bottom, past the lowest level of the Archives, past the wine cellars beneath the Masters’ Hall. At this depth, the stone predated the University by millennia.

Below Cricklet, a passage I’d never seen. The walls were smoother, more deliberately shaped, the stones cut to fit so perfectly you couldn’t slide a hair between them. The air was cold and dry.

“This is old,” I said, running my hand along the wall. Beneath my fingertips I felt grooves, shallow, regular, purposeful. Carvings.

She remembered. Her bare feet found each turning without hesitation. At one point she paused beside a carved stone set into the wall at shoulder height, its surface worn smooth by centuries of passing hands. Without looking, her fingers traced a complex whorl of interlocking lines.

I said nothing.

She paused at an intersection where three passages met. The ceiling here was higher, high enough that my candlelight couldn’t reach it. The air smelled dry and faintly sweet, with an undertone of old paper.

She took the left passage without hesitation and glanced back once to make sure I followed.

The passage sloped downward, gently at first, then more steeply. The carvings on the walls grew denser, patterns that repeated and varied and intertwined like the themes of a fugue. The brave candle’s blue light revealed them only in fragments, and the fragments refused to assemble into any coherent image.

Then the passage opened, and I stopped breathing.


The chamber was enormous.

A vaulted space that stretched upward into darkness beyond the reach of any light, its floor smooth and unbroken, its walls curving inward at the top like the interior of an egg. Or a barrow.

The thought came unbidden and wouldn’t leave. I had seen barrows before, the ancient burial mounds that dotted the landscape of Vintas. The architecture of those barrows — the curved walls, the fitted stones, the sense of deliberate permanence — was echoed here, magnified a hundredfold. A barrow-hall, then. That is what I called it ever after.

If it had ever been a tomb, it had long since been repurposed.

The chamber was full of books.

Books housed in alcoves carved into the walls, hundreds of them, each precisely sized to hold a single volume, each sealed behind a thin panel of glass so clear it was nearly invisible. The glass caught the blue light of the brave candle and scattered it in pale constellations across the floor and ceiling.

Auri touched my arm, very briefly, and pointed. Her lips moved, shaping a word too soft to hear.

I approached the nearest alcove. Behind the glass, a book lay open to a page covered in angular, dense characters arranged in columns rather than rows. They shifted faintly in the candlelight. The ink itself was alive.

My hand reached toward the glass. Auri caught my wrist, gently, as you’d stop someone from touching a sleeping child. She shook her head once.

I pulled my hand back, and she released me.

The stone, the glass, the air itself spoke of an age that predated the Aturan Empire. Predated, perhaps, the Creation War itself.

I thought of Lorren and his careful kingdom above us. Did he know what lay beneath his feet?

Auri read the question in my face. She hugged herself, shook her head.

She moved through the chamber with the quiet certainty of someone returning to a place that was hers in some way more fundamental than ownership. And for a moment, in the blue candlelight, she stood differently. Straighter. Her chin lifted, her shoulders drawn back, carrying a bearing that did not belong to a girl who lived in tunnels and talked to the moon.

Then the moment passed. She tilted her head, birdlike, and she was Auri again. Small, bright, delicate as a wish.

She had been here before she was here.


We explored the chamber together, moving from alcove to alcove with the methodical reverence of pilgrims visiting shrines. Auri guided me, not explaining, but pointing. Showing me how one thing related to another.

She paused before an alcove that held a large volume bound in something like leather that shimmered with an iridescence no leather possesses. She pressed her palm flat against the glass and closed her eyes. When she opened them, she mimed something, hands opening, sound emerging. Songs. Captured, preserved, waiting to be released.

She moved to another alcove. This one held a collection of thin stone tablets, stacked and bound with wire that had corroded to a greenish patina. The tablets were covered in characters that had grown from the stone itself, crystalline formations following the logic of language rather than chemistry.

Auri’s hand hovered near this one. Her expression changed, reverent, wary. She whispered a single word: “Doors.”

My heart beat faster.

Auri beckoned me closer, pointing to a specific tablet near the middle of the stack. Through the glass, the crystalline characters caught the blue candlelight and threw it back in fragmented patterns across the ceiling. Most of the text was impenetrable, angular shapes that my mind slid off like water from oiled leather. In one section near the tablet’s lower edge, the characters arranged themselves into something almost recognizable. Figures, human figures, standing in a circle around a shape that could only be a door. And from each figure, lines radiated outward into the door’s frame. Something was flowing from the people into the stone itself.

I read it the way I read everything that year: by the light of what I already believed. Seven figures. A door. Their substance flowing out of them into the stone. Here was the old horror in its plainest form, the ancestor of the thing Lorren’s list recorded in its neat modern hand. Scholars who asked, and vanished. Singers who knew, and burned. And before all of them, this: people fed into a door the way you feed tallow to a flame. Whoever had built the old locks had rendered human beings down into architecture, and whoever kept the locks now was still doing it, one curious name at a time.

I was reading a language I did not know by the shape of its letters. Remember that, when we come at last to a barrow in the south. Remember that I looked straight at the truth, upside down, and it fit my grief so well I never once thought to turn it over.

The tablet beside it held no figures at all. It held music.

Not notation as any modern hand would write it — the pattern curved and folded back on itself across the stone — but the intervals were there if you knew how to look. Rising. Falling. Refusing to resolve. I stood very still, and I took the seven intervals the wind had given me over the rooftops, and I set them against the carved line one by one.

They fit.

Not perfectly. Her song had drifted, or been bent deliberately to a new purpose, the way a plow can be beaten from a sword. But the bones were the same bones. Whatever Denna’s song was built upon, it was older than Yll, older than the Empire, and a version of it was carved into stone a hundred feet beneath the University, in a hall built like a tomb.

In my pocket, Stapes’s bone ring hummed faintly, its Yllish knots resonating with something in the stone.

I had come down carrying a broken melody. I was going up with its grammar.


She led me to the far end, where the alcoves gave way to a stretch of wall covered in carvings so shallow and fine they were nearly invisible, readable only when the light struck them at exactly the right angle.

The brave candle’s blue glow caught them perfectly, and for a moment the wall blazed with text, thousands of lines of cramped, angular script, covering every available inch of stone from floor to ceiling.

Auri stood before the wall with her hands clasped behind her back.

I stepped closer. The text was in the same unknown script as the stone tablets, carved with extraordinary care, each character precise, the spacing so regular it could have been typeset. And woven through the text, a bright thread in a dark tapestry, were patterns I recognized.

Yllish knot-work. Flattened from cord-and-thread into carved-stone, but unmistakably the same fundamental language.

“This is a translation key,” I breathed. “This text, it bridges the old language and Yllish. It shows how they connect.”

My mind raced. If I could decode this bridge between Yllish and the older language, I might be able to read the stone tablets. Might find, somewhere in this hidden library, the techniques I needed to help Denna.

“I need to come back,” I said. “With paper. With ink. I need to copy these carvings—”

“No.”

The word was gentle but absolute. She shook her head once and pressed her palm flat against the stone beside the carvings. What’s here stays here.

“You promised,” she said. “Both hands. Nothing else.”

Every instinct I had screamed at me to copy every character on that wall, to carry this knowledge up into the light where it could be studied and used.

I could learn. I could come here and sit and read and let the words shape my mind. That was what the library was for. Not for taking. For becoming.

“All right,” I said. “I’ll come and learn. But I’ll need time. And light.”

Auri nodded at the candle in my hand. The brave thing would last. It knew its job.


We sat on the floor of the chamber for a while, in the blue glow of the brave candle, surrounded by sealed books and the weight of more knowledge than I could comprehend. Auri sat cross-legged, her eyes half-closed. This place, far below the world, was more home to her than anywhere else.

I didn’t ask how she’d found it. The stones sang, down here, a song too low for most people to hear.

After a long silence, she reached into the pocket of her ragged dress and withdrew something small.

She held it out. A ring. Small, simple, carved from a single piece of bone polished until it glowed. Pale, almost white, inscribed with the same angular script that covered the walls and the stone tablets.

I took it. Lighter than I expected, and warm — not from her hand but from within. It fit perfectly on the little finger of my left hand.

Auri touched the ring on my finger, briefly. The bone hummed against my skin.

The old words on the wall were clearer now. Closer. The ring had tuned some part of me to the library’s frequency.

A key, I realized. Not for a lock. For a conversation.

“Thank you, Auri.”

She looked at me for a long moment. Then she reached into her pocket a second time, and her face changed — went careful, the way a face goes when its owner is carrying something full to the brim and trying not to spill.

“Here.” She pressed something into my hand.

The moment it touched my palm, everything changed.

Cold. The cold of stone that has never seen sun. My breath caught. The air thickened, and for just a heartbeat I heard something — the echo of a great bell struck centuries ago, still reverberating through layers of earth and time.

A key. Iron, black with age, its surface pitted and scarred. It had a weight that had nothing to do with mass, a presence that made my sleeping mind sit up and pay attention.

“What is this?”

“For when you’re ready,” she said, “to open what shouldn’t be opened.”

The key grew warm in my hand. My breath fogged in air that had been warm a moment ago. I looked at her, and she looked back, and the clarity in her eyes guttered and went sideways, and she was Auri again, small and bright, brushing nonexistent dust from her dress.

“The honey was good,” she said. “The bees knew things.”


We ascended together, through passages that felt easier going up than they had coming down. The stone itself was helping us along. Weathered masonry gradually gave way to familiar construction, the centuries-old brick of the Underthing, the iron pipes and crumbling plaster of the University’s foundations.

At the grate behind the Artificery, Auri stopped.

She reached up and touched my face, lightly, as you’d touch a candle flame to test its heat.

“Listen,” she said.

Then she was gone, vanished into the darkness with the soundless grace of a thought passing from waking into sleep.

I stood in the moonlit courtyard, the bone ring warm on my finger, the iron key cold in my pocket, the brave candle’s blue light slowly fading. The night air smelled of grass and stone and the distant river, and the stars overhead were the same stars that had watched over the world since before the first door was sealed against the first encroaching dark.

Somewhere above me in the Fishery, a lamp I had promised sat unfinished on my bench, and the buyer would come with the morning bell. I had traded four talents I did not have for a grammar I could not yet read, a key with no lock, and a candle that was slowly spending itself on my behalf.

You will see, soon enough, which of us got the better of that bargain.

The library was waiting.

This is unofficial fan fiction, not affiliated with Patrick Rothfuss or DAW Books. The Kingkiller Chronicle and all related characters are the property of their respective owners.