Artifex/story_artifacts/the-fortune-below/source-boundaries/mainline-side-novel-separation.md
2026-08-29 01:56:59 +07:00

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# Fortune Below Mainline And Sabine/Corin Source Boundary
## Status
This is an operating source-ownership boundary. It controls retrieval and planning scope; it does not
promote provisional events into canon.
## Mainline Books Two And Three
The mainline owns events that change the expedition, household, legal, financial, or publicly observable
state of the ensemble. This includes:
- Selka's folded-route investigation and professional authority.
- Cerys's allocation, release, employment, belonging, and mainline relationship choices.
- The estate, Hallow Street, route-office, equipment, and expedition arcs.
- Sabine's rescue, legal release, independent alternatives, chosen return, paid work, and relationships with
the household when those events are selected into an approved mainline book state.
- Only the minimum externally observable Sabine/Corin continuity needed by another mainline scene.
The approved two-chapter Book Two pilot contains no Sabine/Corin side-novel event. Chapter 1 excludes the
game entirely, and Chapter 2 concerns Cerys's freedom question.
## Sabine/Corin Side Novel
The side novel owns the private progression of Sabine and Corin's relationship across the time occupied by
Books Two and Three. This includes:
- The game, turns, scores, rules, private experiments, and physical thresholds.
- Private declarations, the sealed envelope, its handling, and its resolution.
- The ten-turn manuscript, the preferred threshold sequence, alternate follow-ups, and rejected experiments.
- Scene-level causes and consequences that are not independently visible to the mainline ensemble.
`Shopping With Corin` is the explicit crossover exception. The same controlled scene may appear in both books:
it establishes Sabine's paid provisioning role for mainline continuity while opening the private relationship
thread for the side novel. The two publications must use the same source revision.
Mainline planning must not retrieve these materials. A side-novel event does not become a mainline fact merely
because its chronology overlaps a mainline book.
## Shared Continuity
Shared continuity must be deliberately copied into a reviewed bridge document. It is limited to public or
externally observable resulting states, never private scene choreography.
Current provisional Book Two bridge candidates are:
- Sabine and Corin begin a private game after Sabine is free and has chosen to remain at the estate.
- Mainline scenes may show brief, unexplained evidence that the game continues.
- The game remains unresolved at the end of the current provisional Book Two structure.
Potential Book Three bridge facts remain unapproved until the side-novel chronology and manuscript assembly
are approved. Mainline work must not assume declarations, envelope resolution, physical completion, standing
permission, or expected repetition.
## Retrieval Rules
- Mainline work may retrieve mainline sources and reviewed shared-continuity bridges.
- Side-novel work may retrieve side-novel sources and reviewed shared-continuity bridges.
- Neither work may retrieve the other work's planning, scenes, or manuscript drafts directly.
- Series reference is reserved for genuinely shared world and established continuity material.
- A document labelled provisional or planning cannot be registered with canon authority.
- Mixed documents must be superseded and replaced by separately scoped documents rather than shared broadly.
## Current Ownership Decisions
- `book-two-folded-route-restructure-plan.md` belongs to mainline Book Two planning.
- `book-two-folded-route-pilot-2-chapters.json` and its chapter briefs belong to mainline Book Two.
- `sabine-corin-side-book-30-chapter-plan.md` belongs to side-novel planning.
- Sabine/Corin scene menus, turn plans, private-scene drafts, the ten-turn manuscript, threshold prose, and
optional follow-ups belong to the side novel.
- The complete `No Final Move` experiment belongs to the side work as a noncanon experiment, not as a
provisional mainline manuscript.
- `fortune-below-book-two-expanded-friendship-and-hallow-arcs.md` is mixed legacy planning and must be
superseded rather than used as a governing source by either work.
- `fortune-below-series-arc.md` and `fortune-below-restructure-canon.md` identify themselves as planning and
must not retain canon authority.