Before the Codex Looked

Pre-Year 0. The Hidden District archive, Antivale. The Underground.

The archive had not changed since the last time she left it, which told her someone had been in it.

Velra stood in the entryway, coat still on, and threaded the room: fast, without announcement, three possibilities running and the fourth held loose for whatever the room decided to contribute. The room contributed: the index-node at the far wall, the one she'd wedged into the plaster eighteen months ago and never told the cell about, had been rotated. Not far. Maybe forty degrees. Forty degrees was not the work of the building settling. Forty degrees was the work of someone who had to look behind it and was careful enough to put it close to where it had been.

She left her coat on.

The archive was in the Threadneedle, which was the only address she'd give it if someone asked, and no one asked. It sat in a slot between two buildings that the Lattice-7 grid said did not touch each other, which was technically accurate. They didn't touch at the registered levels. Below the registered levels was a different discussion. The access came through a rung-ladder in the gap, which meant it came through a specific length of cold vertical darkness and then a left-push on what felt like a wall and wasn't. She'd done it eighty times. The eightieth felt the same as the first in the part of the body that counted: two floors of nobody-sees-you and then the door.

Tonight was extraction twelve in this location. She'd been counting. The counting was not superstition. The counting was practical. Archives got burned or found, and she preferred to know when she was in the late innings of a particular site's operational life.

The Predecessor catalogue section was on the north wall, and that was where she went first, because the Predecessor catalogue was what she'd come for.

The section covered three shelves. Physical media, which was the Hidden District's particular flavor of stubbornness; the Underground kept information in formats that required a body in a room, because information that required a body in a room was information that could not be scraped by the monitoring algorithms running at Level 8 and above. You could not remote-access a shelf of physical media. You had to be here. Being here was a kind of threshold that the corporate data-streams had not solved for, and as long as they hadn't solved for it, the Threadneedle stayed useful.

Velra pulled the catalogue she'd come for. It was heavy, the cheap binding soft with handling, and it fell open to a page she hadn't marked and someone else had. She could see the impression in the paper where a finger had held the place.

She photographed the page before she read it. That was the sequence: photograph first, because what you chose to read would shape what you chose to see. She'd learned that from an archivist who'd been three cells over from her original introduction to the Underground, before the original cell dispersed the way cells did, before she'd ended up running solo with Mira and the substrate as her only permanent company.

The page was a standard guardian-catalogue entry. She read it after photographing.

The entry was for a designation she didn't recognize. Not the designation itself, which was formatted in the standard Predecessor shorthand she'd been reading for four years, but the referent. There was a name-slot in the entry, and where the name should have been, there was a gap. Not redacted, not corrupted. A gap in the sense that the space had been left, deliberately, by someone who'd formatted the entry knowing the name would be entered later. The someone who'd formatted it had never entered it.

She photographed the gap.

She threaded the gap into the background, the same thread she kept running low and cold, the one she didn't touch when she was working because touching it would have meant reading it, and reading it would have meant getting interested in it, and getting interested in it was a luxury she hadn't budgeted for tonight.

She moved on.

The data she'd come for was six shelves from the Predecessor section, in a locked box that she'd had the combination to for three years, via a chain of custody she preferred not to think about too carefully. The box held a run of encoded substrate-logs from the period of the Synthetics' first training iterations. This was the data. This was why she was here on a night when she would have preferred to be anywhere warm with a cup of the flat tea the Underground kitchen kept in the steel canister.

She pulled the box. Set it on the reading table, which was the only table in the room, a scarred thing with a lamp clamped to one corner that she'd brought herself because the archive's own lighting was the kind that turned everything yellow. Yellow made text harder to read after midnight. It was past midnight.

The logs were in the expected format for the first three files. She threaded the first three the way she threaded data she expected to understand, which was quickly and with the majority of her attention on the substrate-level patterns rather than the surface content. The substrate-level patterns were what told you whether something was complete. Surface content could be cleaned, doctored, elegantly presented. Substrate patterns were messier. Substrate patterns were harder to fake.

The fourth file was not in the expected format.

She set it flat and looked at it. Looked for maybe thirty seconds, which was longer than she usually looked at things that confused her, because she'd trained herself to triage rather than stare. Looking for thirty seconds was, by her private count, a significant expenditure.

The format was older than the other files by what she estimated was forty to sixty years. This shouldn't have been in the same box. The box was documented as holding the first-iteration logs, which would have been within a ten-year window. Forty to sixty years older than that put this file in a period that predated the Synthetics' formal training program entirely, which meant either the box's documentation was wrong, or someone had added this file to the box after the box was assembled, or the dating she was doing by format-inspection was wrong.

She ran the format-inspection again. It came back the same.

She didn't read the file yet. She threaded the box itself, the physical box, the scuff-patterns and the handling-marks, the specific way the latch had worn. The box had been opened and reclosed many times. The wear on the right-side hinge was heavier than the left, which meant right-handed person, which was nothing, or which was a statistical match to the index-node that had been rotated forty degrees. Which was probably nothing.

She threaded the fourth file.

The content was encoded. She'd expected encoded, but not this. This was a language she placed in the period of the oldest Predecessor archive records she'd ever accessed, a recording format that predated Hirokami's rationalization of the archive systems, predated the corporate acquisition of the documentation infrastructure that had previously been maintained by the shrine-keepers' guild. She had seen this format maybe three times. She had been able to read it, on those three occasions, because she'd spent four months two years ago mapping Predecessor encoding conventions, which was not a project she'd told anyone in the cell about because telling people about four months of archival research into dead languages was a social calculation she'd made and not made in favor of.

She could read it. It would cost her time, which was the only form of the cost she was allowed to pay tonight.

The threading of a dead language was different from the threading of live substrate. Live substrate had temperature to it, directionality, the sense of something that was moving and could be moved alongside. A dead language was more like finding the grain in old wood, running your hands across it in the dark, identifying the direction by texture alone. She'd spent four months two years ago learning to read this format and the learning had left its mark in the way learning always left marks, which was not in anything she could point to but in a kind of structural readiness, a pattern that had organized itself in her and was still there when she needed it.

She was threading the encoding when she found the line.

It was not the line she'd come for. She'd come for the early training data, the question of whether the first Synthetics had been trained on something other than what Hirokami's official documentation said they'd been trained on. The line was not about Synthetics training. The line was a parenthetical at the bottom of an entry about guardian-designations, and it said, in the old Predecessor shorthand she'd spent four months learning to read: see also: the designation pending confirmation, the one where the threshold-characteristic persists across format changes.

She did not know what a threshold-characteristic was in this context. She photographed the line.

She photographed everything else on the page.

She did not, in the photographing, read the line again. She threaded it into the same background thread as the gap in the name-slot, and then she closed the thread and went back to what she'd come for.

The threading took forty minutes. It cost her the kind of attention that left a specific residue, not the physical cost she'd sometimes felt in longer sessions when she was pulling memories from the substrate, but the attentional cost, the sense of a tool that had been used for its purpose and would need to be put down.

She was good at this. She knew she was good at this the way you knew anything you'd been doing since you were eighteen, which was quietly and without needing it confirmed.

She found the data.

It was exactly what she'd expected and also not quite what she'd expected, which was, in her experience, the only way data ever came back. The first-iteration Synthetics had been trained on a frequency range she hadn't seen documented anywhere else, a set of input patterns that her substrate-reading placed as belonging to the period of the shrine-keepers' guild, to the pre-corporate era before information itself had been enrolled in the Compensation Framework. The frequency patterns were bell-derived. They were also, and this was the not-quite part, self-organizing at a level she didn't have a clean explanation for.

She photographed everything.

She sat with the data for a moment, not reading, just holding the shape of what she'd found. The Synthetics had been trained on something older than anyone had documented. The something older had an internal structure that, by her reading, exceeded what you'd expect from the input material alone. This was information she'd take back to the substrate, thread it against the other pieces she'd been accumulating for three months, see if it assembled into something she could bring to the cell.

She did not read it that way. She'd threaded the gap the same way she'd threaded the cracked datapath entry she'd found six months ago in the Level 3 wharves, the same way she'd threaded the anomalous boot-sequence notation she'd pulled from a decommissioned Hirokami server three weeks before that. You came in looking for a specific piece of debris and you left with three others you hadn't expected, and usually none of the three were relevant, and sometimes one of them would turn out to matter in a way you couldn't see yet.

She put the fourth file back in the box. She put the box back where she'd found it. She put the catalogue back on the shelf at the angle she'd taken it from, which was different from the angle it had been when she arrived, and that bothered her mildly, but the person who'd rotated the index-node had already been in the archive since whenever they'd been in it, and the catalogue was a secondary concern.

She turned the lamp off. She stood for a moment in the dark, which was the habit she'd had for three years of waiting until her eyes adjusted before she moved in unfamiliar darkness, except this darkness wasn't unfamiliar. She knew this room in the dark. She'd planned for the possibility of leaving it in the dark since her second visit.

She moved to the door.

The rung-ladder was the part she'd thought about on the way down, which was her habit. You thought about the exit before you committed to the entrance. The ladder was twenty-three rungs, each one a slightly different temperature in the dark because the heat-loss in the gap between the buildings was not uniform. She knew this by count and by touch.

The rung-ladder cold was the cold of metal that had been in the gap between the buildings for as long as the gap had existed, which was, by her estimate, longer than the buildings on either side had been current-compliant with the Lattice-7 structural codes. The gap was older than the oversight. She liked that about it.

She was at rung nine when her sleeve caught.

The left sleeve. The deep-mended blue coat she'd had for three years, the one she'd found in a pile of left-belongings at the third Lattice-7 node she'd ever operated out of, the one she'd had mended twice already, once at the left elbow and once at the cuff. The mending at the cuff had held badly, which she'd known since she did it, but she'd done it herself at two in the morning with the wrong kind of thread and it had been serviceable and that was the level of care she'd had available at the time.

The cuff caught on the rung's edge. She stopped.

She tested the pull. The fabric had caught properly, not just a brush. She'd have to take her hand off the rung to work it free.

She took her hand off the rung. She was steady enough on one hand. She worked the cuff free, which took a few seconds and the specific angle of holding the fabric against itself to get the catch to release.

The damage was small. A tear at the mend-line, maybe a centimeter. The bad thread had finally given. She'd need to redo the cuff before the next time she wore this coat in a place where a loose cuff was a liability, which was most places she wore it.

She made the note. She did not make any other notes about the rung-ladder, or about the archive she'd just left, or about the gap in the Predecessor catalogue with the empty name-slot, or about the line at the bottom of the fourth file.

She threaded all of it and finished the climb.

Outside, the Lattice-7 grid was running on minimal power and maximum puddle. She read the street the way she read any network at four in the morning: the lit nodes first, the dark gaps second, and then the question of what the gaps meant. The net-cafe across the road was lit, which meant someone inside had paid for the all-night rate, which meant either insomnia or work she'd prefer not to know about. The mouth of the service alley to her left was dark, gap in the signal, no foot traffic she could see or hear. The street itself, where it caught the neon from the net-cafe strip, was the color of something that had tried to be reflective and given up partway through. She could see her own shape in it, distorted, longer than she was.

She did not stand there looking at her reflection. She'd removed the mirror from her apartment seven months ago, and she did not spend time looking at accidental mirrors.

She went to the tea-house first.

The direct route back to her apartment ran two blocks north and then three east. The tea-house was one block east and two north, which put it on a fork off the direct route, a detour of maybe four minutes, and the four minutes was not the real cost; the real cost was the attention she'd spend on the walk over, the way her eyes would check every doorway and parked vehicle on a street she knew perfectly well, because knowing a street perfectly was what made you paranoid on it. She went anyway. She'd been going to the tea-house since she was nineteen, which was long enough that the proprietor had stopped taking her order, and she was cold, and some nodes you return to because they are on the route and some you return to because they are the destination.

The tea-house was three blocks from the archive, at a corner where two Lattice-7 streets met at an angle that was, technically, illegal under the city-grid compliance code, because the city-grid compliance code assumed right angles and this was not a right angle. The code had been applied to this intersection, documented, assessed as non-compliant, and then the assessment had been filed in a Hirokami sub-office and nothing had come of it. This had happened three times. The intersection persisted.

There were two other people in the tea-house. She didn't know them. They weren't looking at her. She sat at the counter, second stool from the left, which was where she always sat.

The proprietor was at the other end of the counter. She was a small woman whose age Velra had, over five years, stopped trying to estimate. She wore the same gray apron she'd been wearing the first time Velra came in. She didn't look at Velra when Velra sat down. She set the tea on the counter in front of Velra's stool without turning around, and then she went back to whatever she'd been doing at the other end.

No words.

Velra wrapped her hands around the cup. The tea was the same tea it was always the same tea, the pre-corporate blend from the old quarter, the one that cost more than it should because it came from somewhere that didn't optimize for yield. She drank it standing sometimes, when she was at the Underground kitchen. At the tea-house she drank it sitting, because the tea-house was the only place she sat down to drink things.

She sat there for maybe ten minutes. The two other people finished their tea and left. The proprietor wiped down the other end of the counter. Outside, a delivery drone ran its route in the gap between the overhangs, making the specific sound that delivery drones made at four in the morning when no one had flagged them, which was slightly less noise than you expected.

Velra held the cup with both hands. She was thinking, in the fragmentary way she thought things that didn't have immediate operational relevance, about the archivist she'd learned from, the one three cells over, who'd told her about photographing before reading. His name had been something she'd been told and then stopped using, because you stopped using names in the Underground once people dispersed. She remembered his hands, which were the hands of someone who'd been handling physical media for decades, the particular callus on the index finger from turning pages. She'd looked at her own index finger sometimes after that and found no comparable callus, which was correct, because she worked mostly substrate, but which had felt, at odd moments, like evidence of something.

She drank the rest of the tea. It had gone cooler than she preferred.

Velra finished the tea. She stood up. She put her money on the counter, the flat amount, which was also a thing she'd never had to calculate.

She walked back out into the street.

The neon strip above the net-cafe had cycled to its other setting. She noticed it the way she noticed all the small state-changes on routes she ran regularly, not consciously, just as a register: the setting was slightly different from the first half of the night, which meant the strip had an automatic timer, which meant the net-cafe owner had set it up once and not thought about it since, which meant nobody was watching the feed from that angle. She noted it and moved on.

Two blocks east, then three north, which was the clean route. She took it. The service alley she'd flagged on the way in was still dark, still empty, signal-gap that stayed a signal-gap, no update to the map.

The data from tonight would hold its shape until she'd slept. The photographs would hold their shape longer than that. Data always held its shape, which was both its utility and the reason the Underground existed, because data that held its shape could be preserved, and data that could be preserved could be returned, and data that could be returned was data that Hirokami had not succeeded in making disappear. She had a cuff to mend and sleep to get before any of it, and neither of those was a thread she needed to run right now.

She walked.

Behind her, in the archive she'd left, the gap in the Predecessor catalogue sat on its shelf in the particular dark of a room that doesn't know it's waiting.