Side Story Canon Notes

A running record of what each side story has contributed to the world bible. When a side story establishes a fact that future stories should respect, it gets logged here and added to the relevant reference file.

The purpose of this file is twofold:

1. Provenance — so we always know which fact came from which story, in case we need to revisit it.
2. Continuity — so future stories don’t accidentally contradict canon a side story already established.

If you’re writing a new side story or a new chapter, scan this file for facts that intersect your scope.

Dead Letters (Jem and Pip’s arc)

Placement and characters

• Set after Book Two, when Jem is fifteen and Pip is thirteen and both can accurately be described as teenage message runners.
• Pip is the closer observer and treats the runners’ reliability as a form of dignity: they read routes, faces, and instructions, but do not open sealed letters.
• Jem is more openly resentful of being valued only for movement and invisibility. He is tempted to open an undeliverable letter because information is one of the privileges routinely withheld from them.
• Their sibling arguments remain heated but structurally safe: each can stop the other without humiliating them, and neither claims ownership of the other’s final decision.

Social and institutional texture established

• First Carriage residents can keep private meal accounts from which regular door deliveries continue until the account is formally closed. The worker delivering the food need not know whether the resident is present or alive.
• Runners may be directed to use service stairs in the First Carriages even when a public stair is available. Guards inspect the delivery chit but do not necessarily confirm whether delivery was completed.
• The train has procedures for many kinds of undeliverable property, but a fact that has not entered the correct office can remain socially known and officially absent. The story does not establish how or why Mr Vale died, who removed or committed his body, who kept his account open, or whether the silence was criminal.
• Jem and Pip keep a small tea tin of undelivered objects beneath their counting crate in Carriage 74. Mr Vale’s unopened letter is placed there with its blue wax seal intact.

Thematic addition

• Runners occupy the gap between private and official knowledge: children are admitted into spaces because they are useful, told things because they are considered socially negligible, and trusted with messages while being denied the context around them. Their choice not to open the letter makes reliability self-authored rather than obedience imposed from above.

What this side story does NOT establish

• The contents or sender of Mr Vale’s letter.
• The cause or exact handling of Mr Vale’s death.
• A train-wide conspiracy or formal policy of concealing First Carriage deaths.
• Any involvement by the Conductor, Albion, the Arrangement, or the Passage.

What Powers the Train (Mira’s arc)

Locations established

• The Service Tunnels — A network of crawl-spaces and low-ceilinged corridors running beneath the floors of every carriage on The Meridian. Four feet high in most places, lit by caged bulbs swung on cables, floors of gritted metal mesh. The territory of the maintenance crews. They’re separate from the carriages above and from the engine carriages forward.
• The Maintenance Workshop — A low-ceilinged carriage between the freight cars and the laundry. Smells of oil, hot tea, and damp from the laundry. Schematic of the train’s underside pinned to one wall, laminated, edges curling, last updated by someone now dead. Tools hung in racks: spanners, hooked poles, prybars known as peacemakers.
• Hatch Forward Seven (FH-7) — A metal hatch in the bulkhead between Carriages 32 and 31, marking the forward boundary of standard maintenance authorisation. A ghosted brass-plate outline above it reads FORWARD OF THIS POINT — ENGINEERING ONLY. The hatch itself is unlocked.
• The Forward Tunnels — Service tunnels continuing past Hatch Forward Seven toward the engine. Indistinguishable in construction from the standard tunnels. Bulbs are kept lit. Maintained by a separate worker (or chain of workers) whose existence is not officially acknowledged by Mira’s crew.
• Bellan’s Workshop — A small workshop set into a widened section of the forward tunnels, roughly four carriages forward of FH-7. Tools racked above a bench, a stove plate, a tin mug, a chair. Maintained, swept, in active use.

→ Added to locations.md.

Characters established

• Mira — Maintenance worker on The Meridian. 34, eleven years in the job. Quiet, observant, professional. Lives in a private bunk in the middle carriages (earned through seniority and saving). Carries a notebook wrapped in waxed paper. Pattern-recognition instincts that nobody else on her crew shares.
• Bellan — A maintenance worker in the forward tunnels past FH-7. Old, calm, white-haired. Has been doing the job for an unspecified long time. Knows that the tunnels continue forward of his section, manned by another worker he has never met. Treats his own ignorance about what powers the train as a settled professional fact. Paid by chit through a cubby-hole, signs for it, takes the chits to a chit-counter run by a woman called Ekka in Carriage 45.
• Kettering — Foreman of the middle-section maintenance workshop. Grizzled, ex-fitter, drinks tea constantly, doesn’t read interim reports unless someone is bleeding or something is on fire. Treats his crew well in a low-fuss way.
• Soren — Mid-section maintenance worker, forty-something, missing the top half of one ear (with three cover stories). Comfortable, lazy in the cheerful way, friend of Mira’s in a workplace sense.
• Ekka — Chit-counter at the back of Carriage 45. Runs the pay-out for at least some of the maintenance and engineering chits. Mentioned only — has not appeared on the page.

→ Added to characters.md under a new “Side Story Characters” section.

Rules / mechanisms established

• The compartmentalised maintenance hierarchy. The maintenance crews are organised in non-overlapping sections along the length of the train. Each section’s workers know their own junctions, ducts, and pivots. They are not authorised past their section’s forward boundary. The crew forward of theirs handles forward of that boundary, and so on. No worker has ever met the crew immediately forward of them. There is no overall map. There is no central worker. The system extends, by implication, all the way to the engine.
• The structural ignorance of the engine. “The engine is the engine. Whatever drives it drives it.” The fact that nobody knows what powers the train is not because the information has been lost. It is because the system was designed so that no single worker, foreman, or department would ever have the whole picture. This is a deliberate architectural feature of the train’s labour structure. Whoever built the train (or whoever organised its workforce afterward) made this decision.
• The chit cubby system. Maintenance workers receive their pay as chits delivered through cubby-holes by a process the workers themselves do not see and have never traced. The chits are signed for and exchanged for coin at chit-counters. The chain between the work being done and the chit being issued is unknown to the workers doing the work.
• Pivots and the duplicate-junction quirk. Some junctions on The Meridian were built with internal pivots not shown on the maintenance schematic. The same junction design appears in two places along the train (forward and middle), suggesting the train was assembled by a builder who liked to repeat junction designs even when functionally unnecessary. This is a small, durable fact about how the train was constructed.

→ Added to rules.md under “The Trains” and “Economy”.

Thematic additions

• The engine question is structural, not informational. The mystery isn’t what powers the train (a fact that could in principle be discovered). The mystery is who decided that no one should know (a structure that has been in place for so long it’s invisible). This reframes the engine question as a question about the architecture of knowledge on the train, not just the architecture of the train itself.
• Compartmentalised ignorance as governance. The train’s social order is partly maintained by ensuring no one ever has the whole picture. This sits alongside the existing themes of class and confinement, and gives the books a deeper register to draw on if they want to.

→ Added as a brief note to UNIVERSE.md.

What this side story did NOT establish (and shouldn’t)

For clarity — these are things the Mira story brushes against but does not answer:

• What actually powers the train (still unknown, deliberately).
• Who built the train, or who organised its labour structure (still unknown).
• What is past Bellan’s section, or any section forward of his (unknown to Bellan; unknown to the reader).
• Whether the structural ignorance is enforced by anyone currently alive, or is an inherited system running on its own momentum (deliberately ambiguous).
• Any connection between the engine mystery and the Passage. The Mira story does not gesture at the Passage, and shouldn’t. Future stories may or may not connect them.

These remain available for the main books to develop, contradict, or leave alone.

The Station Keeper (Ilsa Brae’s arc)

The first side story told entirely from outside a train — the inversion of the usual lens. Set across a single ≈14-month Meridian loop at the resupply halt of Tarnhalt.

Locations established

• Tarnhalt — A small fortified water-and-coal halt on the Meridian’s northern loop (distinct from Hessa’s Station on the western leg and Coldmere at the northernmost reach). ~140 people; a settled civil polity, not a grounder community. Sits on a plain flat enough to see the train coming for ~an hour. Provisions the train with domestic supply only — water (gravity tower fed from the valley tarn), coal (for kitchens/wash-houses/boiler-rooms), root crops, dried tarn-fish, sheep. The stop is ~4 hours, once per loop; the town calls it “the tide” and structures its whole life around the gap between trains. Centre of town life is the station house (stone room; stove; thirty-five-plus years of manifest duplicates in oilcloth).

→ Added to locations.md.

Characters established

• Ilsa Brae — Station keeper at Tarnhalt, 53 in the story’s loop. Town-born; inherited the post from her father. A keeper, not an adventurer; exact, patient, undramatic. Catches the anomaly, declines to chase it, is never threatened — the not-chasing is deliberate and partly why nothing comes for her.
• Reeve Tamm — Tarnhalt’s head; keeps the town boring (= alive). The voice of survival-incuriosity: you don’t audit your largest ratepayer.
• Sefa — Ilsa’s young assistant and successor; the reason the independent-bookkeeping habit outlives any one keeper.
• Mr Adwell — A former Meridian records clerk put off at Tarnhalt for “adding something up that didn’t want adding.” Supplies the keeper’s-eye verdict: clerks correct forward, never re-foot a closed page.

→ Added to characters.md under “Side Story Characters.”

Rules / mechanisms established

• The keeper’s tariff countersignature (the one external audit-point). A station town charges the passing train a toll, and to assess it the keeper countersigns the train’s declared freight manifest against her own chalk car-tally (two independent records of the same train, made by two people who don’t work for each other, that must agree). Tarnhalt is — as far as anyone in-world knows — the only place on the whole circuit where the train’s account of itself is checked against a record kept by someone the train does not pay. This makes a station keeper structurally able to notice things no one aboard can.
• The independent duplicate archive. Station towns keep their own flimsy duplicate of every manifest, hoarded for decades (the keepers’ only wealth the train can’t carry off). This is what lets a curated omission be caught — you can only prove a line was removed if you kept the old book. Foundational to the story’s mechanism and reusable.
• Tariff columns: chargeable vs. bonded/through/nil. Freight is tolled by chargeable weight; bonded, sealed, through-carried consignments are declared-as-aboard but not landed, and pass at nil tariff. The keeper’s eye is trained on what’s billable, so the unbillable line is effectively invisible — until it vanishes. (A neat structural reason an anomaly can hide in plain sight for a century.)
• “The tide.” Station-town idiom/cadence: the ~4-hour stop once per loop as the organising heartbeat of the town’s ~14-month life. Reusable texture for any resupply-town scene.

→ Added to rules.md (Economy / Trade) and reflected in locations.md.

Thematic additions

• The external audit angle on the engine mystery (M5, oblique). The Mira arc established that the engine is structurally unknowable from inside. This arc adds the view from outside: the one civil servant who measures everything the train takes on, at the one place it stops to take anything, can confirm the train has never loaded anything that could move it — only a town’s worth of cooking and washing. Whatever moves the Meridian, it brings its own. (Delivered as a single restrained beat; Ilsa burns the arithmetic and does not build a theory. She does not conclude what powers it — nobody can.)
• Records curated by a faceless, patient hand (oblique brush of the B3 “omitted, not deleted” / B7 “kept blank” behaviour). A line is removed cleanly, the books re-footed, and when the keeper catches it the discrepancy is — across a continent and 14 months — smoothed: the line restored, her own duplicate left as the lone error. The correction is impersonal, unhurried, no threat, no face. “Something forward keeps its own books, and theirs are the ones that win; the only sign of it is that the disagreements, eventually, go away.”
• Keeping as quiet defiance; incuriosity as survival. The warm centre: a diligent keeper who records an anomaly she will not (and dares not) chase. “We keep the book so the disagreement exists somewhere.” Two jobs — understanding a thing, and keeping an honest record that it happened — and nobody is paid to do the first.

→ Added as a brief note to UNIVERSE.md (the external-audit angle on the engine mystery).

What this side story does NOT establish (and shouldn’t)

⚠️ Discipline notes — important, because this arc brushes sealed material:

• What the bonded “nil” car contains — never seen, never opened, never learned. Ilsa proves a record changed; she can never prove a thing exists or what it is. Keep it that way.
• What powers the train — untouched as a positive fact. The arc only deepens the absence (the inputs don’t account for the motion); it does not gesture at harvested memory, the Passage, or the engine’s nature (bible-secrets M5 intact).
• The Arrangement — never named, never personified, never present. The “smoothing” is rendered as structural and faceless (consistent with M2’s “not a person, may not be a who”), but the arc does not invoke the agency, name it, or have it act against Ilsa.
• Della Roan / the B7 threat-model — deliberately not triggered. Ilsa is not a proto-Della: she notices one curated line and a piece of arithmetic; she does not systematically reconstruct the machine’s shape, and she is therefore not removed. (Her staying a clerk, and the absence of any reprisal, is the whole point and keeps the arc from stepping on Book Seven. Do not let a future reading promote Ilsa to “someone who understood the system from outside.”)
• The convergence / slow build — untouched. No growing track, no orbit, no kept-blank geography. The omission here is a records phenomenon, a small local instance of the same curating behaviour, not the cartographic reveal.
• No protagonist crossover. Elliot and the main cast do not appear. The Meridian’s clerks (Hessom; the pressed clerk; the tired clerk) are passing functionaries, not the Arrangement; clerk turnover is left genuinely ambiguous (people rotate, people die, towns turn over) and is not confirmed as anything sinister.

These remain available for the main books to develop, contradict, or leave alone.

The Alighting (Teff’s arc)

The second side story told entirely from outside a train (after The Station Keeper), and the first from the POV of someone the train has just expelled. Set across the forty minutes before the Meridian leaves Bauch’s Crossing and the three hours after. The reader, who has only ever seen the train from inside, sees it here as a wall, a fact of landscape, and finally a thing leaving.

Locations established

• Bauch’s Crossing — A timber-and-resupply town on the Meridian’s loop, built where an old wagon road crosses the line (a ground crossing — not to be confused with a train crossing-point). Larger and rougher than Tarnhalt; pitch, woodsmoke, a river, saw-noise. Because it sits on a road as well as the rail, it has long had two-way foot traffic and has become the town that absorbs the people trains put off. Has, for this, an institution: the ledger of the alighted, a shed, and timber-hauling work to take them in.

→ Added to locations.md.

Characters established

• Teff — Side-story protagonist; a Meridian hauler put off at Bauch’s Crossing after a bunk dispute. Right by custom, wrong by paper; his decisive offence was refusing the ruling, not breaking a rule. Not a villain — an ordinary man undone by being unable to be wrong. (Full note in characters.md.)
• Saar — The old woman who keeps Bauch’s Crossing’s ledger of the alighted; the structural mirror of Ilsa Brae (an honest record the train doesn’t pay for — but of people discarded, not freight). Embodies the town’s deliberate neutrality and hard mercy.

→ Added to characters.md under “Side Story Characters.”

Rules / mechanisms established

• “Put off at the next station town,” from the receiving end. rules already establishes that a ticketless offence can be punished by being set down at a station town. This arc establishes what that is on the ground: the train sets down ticketless expellees at certain towns, which have learned to absorb them as labour. The ticketed are shipped on “to somewhere with a magistrate”; the ticketless are simply got down.
• The alighted (term). A station-town word for a person a train has put off without a ticket — “got down, and the train went on.” A recognised social category in towns that receive them, with attendant institutions (a ledger, a shed, an expectation of work, a known first-winter attrition).
• The ledger of the alighted. A receiving town’s own running record of everyone the trains have set down there — a third instance of the world’s recurring records motif (cf. the runners’ undelivered-objects tin, the station keeper’s manifest duplicates): an honest book kept by someone the train does not pay, but here recording discarded people rather than freight or omissions.
• Station-town civic neutrality toward the train. A receiving town takes no side in a passenger’s dispute with the train, because the train returns and a town the trains stop trusting dies of it. The town’s mercy is real but strictly apolitical.

→ Added to rules.md (Society / Tickets) and reflected in locations.md.

Thematic additions

• The train as the only context a life ever made sense in. The arc’s core: not that the train is a romantic or comfortable home, but that for someone who remembers no life before it (i.e. everyone but the leaks), the train is the entire frame of a self — and expulsion is the loss of the frame, not just the address.
• Land-sickness (durable physical motif). A body that has only ever known a moving floor keeps making the ten-thousand-an-hour corrections of life in motion, and on still ground grieves in the only language it has: a man stands on solid stone and feels seasick. The inversion of the usual lens made bodily — reusable for any character newly off a train, and a fresh angle on motifs’ forward/warm gradient (the warmth and the motion both stay with the train).
• The “don’t look back” rule re-read. From outside, the gangway rule (motifs) is recast as a kindness dressed as a safety instruction: don’t look back, because there is nothing back there you can use. The arc literalises the irreversibility the rule guards — the train never looks back, and never has.
• Being recorded as a small redemption. The train unwrites a person (the forfeited ticket); the receiving town writes him back in (the ledger). A line in a stranger’s book is meagre, but it is a thing that knows he is there — set against the two cold rails that don’t.

→ No new UNIVERSE.md note required; deepens existing themes (the inversion lens, records, class-as-geography).

What this side story does NOT establish (and shouldn’t)

• No cosmology. The Passage is brushed only at the canonical surface — the formless “came from somewhere” sense everyone carries (rules), which surfaces in the stillness and settles uselessly. Teff is not a leak; nothing is remembered. The engine, the Arrangement, the slow build are untouched.
• No protagonist crossover. Elliot and the main cast do not appear. The Conductor’s ruling is felt but the Conductor is off-page; the enforcer and the clerk are passing functionaries.
• No verdict on the system. The arc deliberately does not argue the ruling was unjust — it stages the opposite: the system worked exactly as advertised, and that is the horror. Don’t let a future reading turn Teff into a wronged-man-seeks-justice setup; the bounded, no-arc shape is the point.
• No promotion of Saar or the town. Bauch’s Crossing’s mercy is small, neutral, and self-interested (the train comes back). Don’t make it a sanctuary or an underground; it is a town that has learned to absorb what the trains discard.

These remain available for the main books to develop, contradict, or leave alone.

The Meridian Gazette (in-universe magazine)

Recurring contributors established

• Dorel Strick — Editor of The Meridian Gazette. The Gazette is published every fourteen days by the Conductor’s Office, distributed front-to-back through the train. Strick’s voice is slightly stuffy, evasive about anything sensitive, fond of small definitional asides (“the Gazette does not, as a rule, traffic in rumours”). The Gazette office is in Carriage 9, ground floor.
• D. Pell — A field correspondent for the Gazette. Files passenger profiles and longer features. Voice: dry, observational, willing to let a subject talk past the question. Initials only on byline.
• Field correspondent (anonymous) — The Gazette also runs a station-stop dispatcher who files unattributed reports from platforms during Halverston, Burr Crossing, and similar stops. Voice: factual, slightly weary, with a careful eye for the people who don’t quite belong.

Locations established / referenced

• The Gazette office — Carriage 9, ground floor. Submissions to “Box 12 at the Tea Car” or directly to Strick.
• The press in Carriage 11 — Where the Gazette is printed in-house, every fourteen days.
• Halverston — A station town on the autumn-run loop. Forty-three minutes timetabled. Wet weather is the norm. Traders bring root vegetables, dried fish, samosas. People wait on the platform looking for someone in particular and never find them; the Conductor’s office advises passengers not to engage. Halverston is in the schedule of these waiting figures.
• Burr Crossing — A station referenced but not visited; the next stop after Halverston on the autumn run, four uninterrupted days of plain between them.

Publishing conventions

• The Gazette is reviewed by the Conductor’s Office before each printing, with the right to “gentle, advisory revision”. It is editorially conservative — declines to print rumours, will not confirm or deny anything sensitive, but reports faithfully on what it can.
• Issues are printed every fourteen days, distributed First Carriages first then rearward.
• The opinions expressed in the Gazette are those of the Gazette.

What this contributes

• A diegetic publication that future side stories or main-book chapters can quote, reference, or contradict. A character in any book could plausibly read a back issue.
• A vehicle for in-universe perspective on events the main books cover — the Gazette can be wrong, sanitised, or revealing about the same events the protagonists experience differently.
• An expanded picture of the train’s economy and station network through the field dispatches and classifieds.

What this does NOT establish

• The Gazette is not a propaganda organ. It is editorially restrained but not lying. It declines rather than fabricates.
• No specific positions on the gramophone case, the Passage, or the cosmology of the train. The Gazette stays at the surface and lets readers draw their own conclusions.