The Rowle Lodging House on Old Iron Street was in a state of repair suggesting that someone had given up improving it long enough ago that the neglect had become a style. The facade was brick with the mortar peeling in irregular patches, the sign above the entrance had lost its first letter and now read OWLE LODGING HOUSE with a conviction that Crowe found involuntarily admirable, and the front door was open with the kind of hospitality that in practice meant the lock was broken.

  He went in.

  The internal corridor smelled of old cooking and cheap tobacco and the particular kind of damp that lives inside walls for decades. A middle-aged woman appeared from the room on the left — the landlady, by the air of someone who had answered the same questions many times and had developed a specific efficiency for it.

  — I'm looking for a guest — said Crowe. — A man, approximately forty years old, works as a maintenance technician. Arrived eighteen months ago.

  The woman examined him.

  — Mr. Nale — she said. Without hesitation — an easy name to remember, a long-term lodger. — Second floor, number seven. — A pause. — But he's not in.

  — Since when.

  — Since the morning before last — she said, in the specific tone of someone who had already noticed and had already decided it was not their problem until it was. — He left with a small bag. Didn't say when he'd be back. The room is paid until the end of the month, so —

  — I'd like to see the room.

  The woman looked at him for a moment with the assessment of someone calculating whether there was a legal basis for refusal.

  — I'm not from the Guard — said Crowe, before she reached a conclusion. — But I can bring someone from the Guard if you prefer. Which will take longer and will involve more questions for you as well.

  It was gentle and slightly underhanded pressure and he knew it. It worked.

  Room seven was small and honest about its own smallness — bed, table, wardrobe, a window with a view of the side alley. It smelled of chemicals, discreetly enough that someone not looking for it would not notice.

  Crowe noticed.

  The wardrobe was empty — Vex had taken the clothes. The table bore marks of intensive use: pen scratches, chemical reagent stains, a circular ring left by a heated vial. The same triangular pattern he had found on the factory workbench.

  There was something under the bed.

  Crowe crouched down. It was a thin leather folder, forgotten or deliberately left — he didn't know yet which. Inside, three sheets. Two were calculations — partial formulae, annotations that appeared to be the continuation of work documented elsewhere. The third was different.

  It was a list of names.

  Eight names, handwritten in the same hurried script as the laboratory formulae. Beside each name, a date and an abbreviation Crowe did not immediately recognise — two letters, L.S., repeated beside six of the eight names. The other two had a different mark. A small circle. Empty.

  Crowe looked at the list.

  He recognised two of the names.

  The seventh was Aldric Voss.

  The eighth was Thomas Reed.

  Voss had L.S. beside his name. Reed had the empty circle.

  He put the folder inside his coat. Left the room, went downstairs, thanked the landlady with his customary brevity, and stepped into the street.

  On the pavement of Old Iron Street, with the folder inside his coat and the list in his head, he lit a cigarette and stood still for a moment.

  L.S. — liminal state. It was the only interpretation that made sense within what Drest had described. Voss was on the list with liminal state confirmed. Reed had the empty circle — not confirmed, incomplete attempt, or a different result.

  Vex had a list of subjects. He was testing the compound on specific people — not randomly, not for cover. There were selection criteria. There was an objective.

  The theory had grown another storey and was still standing.

  Crowe dragged slowly, exhaled the smoke into the street's vapour, and walked toward the closed Academy.

  The building that had housed the Londrivar Academy of Applied Sciences occupied a street in the Upper Quarters that had aged with more dignity than most. It was a pale stone building with tall windows, closed for four years but maintained — there was a heritage management company responsible, according to the Guard records Crowe had consulted before leaving.

  Which meant someone had a key.

  It also meant there were access records. And access records were the kind of thing an investigator could examine if he had sufficient reason to be there — or appeared to have sufficient reason.

  Crowe stood on the pavement in front of the building for a moment. Then went to the side alley.

  The disguise was simple because the best disguises always were.

  There was a stationery shop two streets away where he bought a pad of generic forms, a wooden clipboard, and a blank badge that he filled in with the name Property Records Inspector — Department of Inactive Building Management. The department did not exist. The name on the badge was Edmund Hale. The clipboard gave the whole ensemble the appearance of someone there to confirm something bureaucratic and who would prefer everyone to cooperate so the process could be brief.

  It worked because people cooperated with bureaucracy not out of credulity but out of exhaustion. No one wanted to be responsible for delaying a process they didn't fully understand.

  Crowe adjusted the badge, tucked the clipboard under his left arm, and knocked on the building's side door with three knocks in the manner of someone for whom knocking on doors is part of the job and not a request for a favour.

  This story has been stolen from Royal Road. If you read it on Amazon, please report it

  The door opened.

  The man who appeared was fifty years old, in a caretaker's apron, with the expression of someone who had been expecting this visit eventually and was not particularly pleased it had arrived today.

  — Property records inspection — said Crowe, in the voice of Edmund Hale — slightly flatter than his own, slightly more administrative. — Verification of access to the premises over the last twelve months. I need the entry register.

  The caretaker looked at the badge. At the clipboard. At the pad of forms.

  — I didn't receive any notice — he said.

  — The notice was sent to the heritage manager — said Crowe, writing something on the pad that the caretaker could not see. — If it didn't arrive that's an internal communication problem I'll need to document. — A pause. — Which will delay the process by at least two weeks and will require a second visit with a full team.

  The caretaker was quiet for a second with the expression of someone calculating whether a two-week delay was their problem or someone else's.

  He decided it was someone else's problem. He stepped back and let Crowe in.

  The building's interior smelled of closure — the particular smell of air that has stood still too long, with a layer of dust that was not dirt but accumulated time. The corridors were tall, with stone floors that echoed footsteps, and there was that particular quality of silence that exists in places that were once full of people and no longer are.

  The caretaker went to fetch the register — a leather-bound volume with handwritten entries in columns: date, name, purpose of visit, time of entry and exit.

  Crowe opened it to the most recent page and began leafing backward.

  Most of the entries were from the management company — maintenance visits, inspections, a structural assessment. Regular, spaced out, nothing of interest.

  But there were others.

  Five entries over the past eight months with the same name: H. Nale — personal archive consultation. The name Vex had used at the lodging house. The dates were irregular — no weekly or monthly pattern, like visits motivated by specific need rather than routine.

  The last Nale entry was three weeks ago.

  The same week Voss had disappeared.

  Crowe copied the dates onto the pad. He leafed further back — looking for any other name that appeared more than once, any pattern that wasn't routine maintenance.

  He found one.

  Six entries over two years, spaced irregularly, under the name A. Voss — technical archive consultation.

  The last Voss entry was four weeks ago. One week before he disappeared.

  Crowe looked at the two lines — Voss and Nale, both using the same archive, one week apart on their final visits.

  — This archive — said Crowe, turning to the caretaker. — The technical archive and the personal archive. Are they in the same location.

  — Third floor — said the caretaker. — General records room. There's no separation by type — it's all together.

  — I need to see it.

  The caretaker opened his mouth.

  — Part of the inspection — said Crowe, already walking toward the staircase.

  The third-floor records room was large and cold, with a high ceiling and metal shelving in parallel rows covered in labelled boxes and folders. There was a central table with two chairs and a desk lamp that the caretaker lit with the gesture of someone fulfilling protocol.

  Crowe went straight to the shelves. He looked at the labelling — the files were organised by department and then by date. He found the department of experimental neurology on a back shelf, with boxes covering a period of fifteen years.

  He took out the box from the final year before closure.

  Inside were folders — research reports, internal correspondence, meeting notes. He started with the last folder chronologically and worked backward.

  The report of Vex's dismissal was in the third folder. One page, institutional language, signed by the Academy's director. Misconduct in experimental research. Violation of consent protocols. Immediate termination of affiliation.

  There was a handwritten addendum in a different hand — unofficial, added afterward. Three lines:

  Subjects of Vex's unauthorised experiments reported, consistently, visions of spaces that do not exist on the known maps of the city. Two reported having been physically present in those spaces without knowing how they had arrived there. The records of these accounts were forwarded to the Guard's restricted archive.

  Crowe went still.

  Two reported having been physically present in those spaces without knowing how they had arrived there.

  Thomas Reed. Damp earth on his knees that was not from the factory or from home.

  The theory — the elegant and coherent theory he had built with such care — began to produce a very quiet sound. The sound that structures make when there is a tension that should not be there.

  Crowe reread the addendum.

  Spaces that do not exist on the known maps of the city.

  It was not about the interval as a physical phenomenon to be measured from outside. It was about the interval as a place. As a destination.

  Vex was not trying to create conditions for people to perceive the interval.

  He was trying to send people into it.

  The theory collapsed.

  Not with noise — with the particular quietness of something that loses its foundation and sinks rather than falls. Crowe stood in the cold records room with the folder in his hand and the addendum before his eyes and saw, with the uncomfortable clarity that only appears after a mistake, exactly where he had forced the connections.

  He had assumed Vex was responsible for the disappearances. Had assumed the improvised laboratory was part of the research on the interval. Had built a narrative that explained everything — and had stopped asking questions because the narrative was answering before the questions arrived.

  Voss on Vex's list with liminal state confirmed. But Voss had disappeared before Vex could use the compound on him — had disappeared in the manner of the twenty-three before him, without a compound, without a Vex experiment, through the original process that no one had yet explained.

  Vex had put Voss on the list because Voss had already demonstrated a natural sensitivity to the interval. Not because he had caused the disappearance. Because he was studying what had caused it.

  There were two parallel processes. And he had merged them into a single theory because it was simpler that way.

  A mind that trusts too much in reason does not lie. It merely oversimplifies. And oversimplification, in cases like this, was another word for error.

  He closed the folder. Returned it to the box. The box to the shelf.

  He turned.

  The caretaker was in the doorway with the expression of someone who had been waiting for a while and was reassessing the nature of this visit.

  — Did you find what you needed — he said. It was not a question.

  Crowe looked at him.

  And it was at that moment that he noticed.

  The caretaker had remained in the room throughout the entire visit. Had observed every shelf Crowe had consulted, every folder he had removed, every second he had spent with the experimental neurology department folder in his hands.

  And there was a quality to this man's attention — something in his eyes that Crowe had catalogued as the passivity of an employee and which now, with the wrong theory dismantled and his mind slightly cleaner, he recognised as something else.

  Observation. Deliberate. Patient.

  — Enough — said Crowe, in Edmund Hale's voice.

  He passed the caretaker with the clipboard under his arm and the regular footsteps of someone concluding a bureaucratic visit. Went down the stairs. Crossed the corridor. Left through the side door into the alley.

  He walked one block before stopping.

  He took the Edmund Hale badge from his coat. Looked at it for a second. Put it in his pocket.

  The caretaker had observed with too much attention. Knew which folders had been consulted. If there was someone interested in knowing who was investigating Vex's archive — someone other than Vex — they had that information now.

  The disguise had worked to get in.

  It had failed to get out without being identified. Not by name — Edmund Hale didn't exist. But by face, by posture, by the specific way of consulting archives that was difficult to disguise because it was too habitual.

  Crowe walked faster.

  There were two parallel processes in the case. There was a caretaker who observed too carefully. There was a folder left under a bed — forgotten or deliberately left, and he still didn't know which.

  And there was, persistent and inconvenient as always, the earth on Thomas Reed's knees.

  Spaces that do not exist on the known maps of the city.

  The headache returned with enough force that he stopped for a second at a corner with his hand against the brick wall, letting it pass.

  It passed. He kept walking.

  He had work to do. He had a mistake to correct and an investigation to rebuild on more honest foundations.

  Londrivar smoked around him, indifferent as always, full of intervals that no one saw and of people who saw too much.