The entrance was not a door.
Levi had been expecting a door — or something door-adjacent, an opening, an arch, a deliberate threshold. What the mountain face offered instead was a seam. A vertical line in the rock, perhaps three metres tall, so precisely cut that it was invisible until you were close enough to see the geometry of it — not a crack, not erosion, but the specific straightness of something that had been made rather than happened. The seam ran from the ground to a height that suggested the interior ceiling was considerably taller than a person needed it to be.
Winters pressed his palm flat against the rock beside the seam.
Nothing visible happened. But the mountain exhaled — not metaphorically, a literal displacement of air from somewhere deep inside, carrying a smell that was stone and cold and something else underneath both, something that suggested age in the way that very old things suggested age, as a quality of the air rather than a visible property of the thing itself.
The seam widened.
Not quickly. The rock moved with the specific patience of something that had been doing this for a very long time and had no interest in hurrying. Two metres. Three. Wide enough to walk through without turning sideways, the edges of the opening smooth and clean and cold to the touch as Levi passed them.
"Stay together," Winters said, from the front. "The first corridor is straightforward. After that it's less so."
"Define less so," said Kylie.
"You'll understand when we get there," said Winters.
✦ ✦ ✦
The first corridor was exactly what the exterior had suggested — carved rock, deliberate, the ceiling high and the walls smooth and the floor level in the way of something that had been worked rather than natural. Torches at intervals, not flame but something that produced light without consuming anything visible, a steady warm glow that didn't flicker. The air was warmer than the mountain exterior, considerably warmer, the specific warmth of an enclosed space that had been maintained at a consistent temperature for a very long time.
Levi walked and looked at the walls.
They weren't bare. Carvings ran along both sides at eye level — not decorative, too dense and specific for decorative, text and diagrams and what appeared to be maps carved directly into the stone with the precision of people who had been doing this long enough to develop technique. The script was unfamiliar in places, familiar in others, a mixture of languages that suggested the Syndicate had been receiving contributions from multiple kingdoms across multiple generations.
"Don't stop to read," Winters said. "These are the access corridors. The actual collection is further in."
"This isn't the collection?" Priscilla said.
"No."
She looked at the walls — the dense, continuous carvings running the length of the corridor in both directions. "How large is the collection?"
"You'll see," said Winters.
Priscilla's spatial awareness was running, Levi could tell. She had the specific expression she wore when her ability was processing something that required more attention than usual — not concern, just the focused intake of a mind receiving a large amount of information simultaneously. She'd been wearing it since they entered the seam and it was getting more pronounced the further they walked.
"Something's wrong with the space," she said quietly, to Levi.
"Wrong how?"
"It's too large." She said it the way she said things she was still working out. "From outside the mountain I mapped the rock face. I know the approximate dimensions of what should be here based on the exterior geometry. What I'm feeling doesn't match." She paused. "The interior is significantly larger than the exterior allows for."
"Yes," said Winters, from the front, without turning. "It is."
Priscilla looked at the back of his head. "How?"
"The Syndicate has been here for a very long time," Winters said. "Long enough that some of what it does isn't fully explicable by the principles we currently understand." He paused. "The scholars have theories. The head librarian will tell you they're all wrong in different ways."
✦ ✦ ✦
The corridor opened.
There was no better word for it — it simply opened, the walls and ceiling withdrawing in all directions simultaneously, the confined passage becoming something that had no business fitting inside a mountain. Levi stopped walking.
The chamber was vast. Not large — vast, a category beyond large, the ceiling so high it was lost in shadow, the floor extending outward in every direction to walls that were visible but distant, the specific distance of something that required recalibration of your sense of scale. Shelves ran from floor to ceiling on every visible surface, carved into the rock itself, filled with materials of every kind — stone tablets, bound volumes, rolled manuscripts, objects whose purpose was not immediately apparent but whose careful arrangement suggested documentation rather than display.
Bridges connected the upper levels, spanning the space between shelf-faces at heights that made the floor below look approximate. Figures moved on some of them — small from this distance, purposeful, carrying things, consulting things, the specific focused movement of people at work.
Light came from everywhere and nowhere simultaneously, the same sourceless warm glow as the corridor but multiplied, filling the space with the even illumination of somewhere that had solved the problem of lighting in ways that didn't require constant maintenance.
"Oh," said Priscilla.
It was the most unguarded thing Levi had heard her say in weeks. She was standing beside him with her spatial awareness running at what he guessed was its full extension and her expression was the expression of someone whose ability had just told them something their mind was having difficulty accepting.
"How far does it go?" she said.
"Further than you're reaching," Winters said. "There are sections your ability won't map even at full extension. The Syndicate's interior doesn't have a consistent spatial relationship with the mountain it's inside." He looked at her with the specific look he reserved for things he found genuinely interesting. "Your ability is going to be useful here for different reasons than you expect."
Kiyandra turned a slow circle, looking upward. "How many books?"
"They don't count them," Winters said. "The head librarian considers counting a distraction from the work of addition."
"How many scholars?"
"Fewer than you'd think for the size of the collection. They travel most of the time. This is where they bring things, not where they stay."
✦ ✦ ✦
A figure was approaching from the interior — moving between the shelf rows with the unhurried directness of someone who knew exactly where everything was and therefore never needed to hurry to find it. Middle-aged, formally dressed in the specific way of someone for whom formality was not ceremony but simply the appropriate relationship between a person and their work. He had the particular quality of stillness that Levi associated with people who spent most of their time with things that didn't move and had absorbed some of that quality.
He stopped in front of the group and looked at them. Not a warm look — an assessing one, the inventory of someone deciding whether what had arrived was worth their time. His gaze moved across the group and settled briefly on Winters.
"Winters," he said. Not a greeting exactly. An identification.
"Head Librarian," Winters said.
"You said you'd return," the librarian said. "I estimated sooner."
"The circumstances required preparation," Winters said.
The librarian looked at the rest of the group. "You've brought people."
"I've brought people who have a serious inquiry," Winters said. "They know what they're looking for in broad terms and not in specific terms, which I understand is not your preferred mode of request."
Something moved in the librarian's expression — not warmth, but the specific engagement of someone who had just been given a problem that interested them despite themselves. "Broad terms," he said. "Describe them."
Levi stepped forward. "We're trying to find the myth base," he said. "We don't know where to start. Which means we need to understand the history of the myth war first — who started it, how it's been organised, what patterns it follows. We think the base's location will come from understanding the history rather than from looking for the base directly."
The librarian looked at him for a moment with the assessing quality that Levi was coming to understand was simply how he looked at everything — not hostile, not warm, just the specific regard of someone processing information.
"That," the librarian said, "is the correct approach." He turned and began walking back into the interior. "Come."
He didn't look back to see if they were following.
They followed.
✦ ✦ ✦
He led them through the shelf rows — the towering carved shelves on either side creating corridors that branched and branched again, the interior of the Syndicate revealing itself in stages as they walked deeper into it. The scale didn't diminish with familiarity. If anything it increased, the sense of accumulated knowledge pressing in from every direction with the specific weight of things that had been gathered over a very long time by people who had understood that what they were doing mattered.
Priscilla was mapping continuously. Levi could tell from the way she moved — slightly slower than usual, the specific pace of someone whose attention was divided between walking and processing, her spatial awareness running outward in its rings and finding, repeatedly, more than she'd expected.
"It keeps going," she said quietly, to herself rather than anyone.
"Yes," said the librarian, from ahead, without turning. "The spatial expansion is a feature of the original construction. We've stopped trying to understand it and started trying to use it. There is approximately thirty percent more usable space than the exterior dimensions should allow, which has proven convenient given the rate of acquisition." He paused at a junction and turned right without hesitation. "We stopped being surprised by it approximately two hundred years ago."
Priscilla looked at the back of his head. "You heard that?"
"I hear everything that happens in the Syndicate," the librarian said. "The acoustics of the expansion have interesting properties. Sound carries further than it should in here, in directions that don't always make sense geometrically."
"How old is the Syndicate?" Levi asked.
"Older than the myth war," the librarian said. "Which is relevant to your inquiry."
He stopped at a reading area — a table of dark stone, low to the ground, surrounded by carved seats that had been smoothed by long use, the shelf rows opening around it into a space large enough to work in without feeling confined. He gestured at the seats.
"Sit," he said. "I'll bring you what we have on the war's origins. It will take time to read. I suggest you make yourselves comfortable." He looked at the group with the cool precision of someone managing expectations. "The restricted sections will not be available to you on this visit. You haven't earned that access yet." His gaze moved to Winters. "You know the terms."
"I know the terms," Winters said.
"What are the terms?" Kylie asked.
"Contribution," the librarian said. "The Syndicate gives knowledge to those who bring knowledge. You've arrived with an inquiry and nothing else. That grants you access to the general collection." He looked at the group. "If during your research you find information we don't have — something specific to your experience of the war, something from the fallen kingdom you passed through on your route here, something about the Rogues that our travelling scholars haven't yet documented — that is the currency that opens the restricted sections."
"What's in the restricted sections?" Kiyandra asked.
The librarian looked at her with the specific look of someone who had been asked this question many times and had a response prepared. "Things that required more than a general inquiry to earn," he said, and turned to the shelves.
✦ ✦ ✦
He returned in three trips — stone tablets, bound volumes, two rolled manuscripts that he placed with the specific care of someone handling things that were old enough to have opinions about being handled. He arranged them on the table with a precision that suggested the arrangement was itself a form of organisation.
"The origins first," he said. "Then the pattern of escalation. Then what we have on the coordination structure — which is incomplete, I'll tell you now. The Syndicate has been trying to understand who is running the myth war at a strategic level for thirty years. We have theories. We do not have certainty." He looked at Levi. "If you find certainty, bring it back."
"We might," Levi said.
The librarian looked at him for a moment with the assessing regard. "Yes," he said. "You might." He turned to go. "I'll have food sent. You'll be here for several days at minimum if you intend to do this properly." He paused. "Do you intend to do this properly?"
"Yes," said Levi.
"Good," said the librarian, and walked back into the interior of the Syndicate without another word, the shelf rows closing around him until he was gone.
The group sat at the ancient table in the impossible interior of the Syndicate of Knowledge with the materials spread before them and the weight of accumulated history pressing in from every direction.
Winters reached into his pack. Produced a fresh iced coffee. Opened it.
"Where do we start?" Priscilla asked.
"Origins," Levi said. He picked up the first tablet. "We start at the beginning."