The owner accepted practical clue-based exploration as a direction (see the [Owner Brief](/Hold%20The%20Flood/Brief)). Wall strings may be a language fragment but fulfil no whole-language requirement. The preferred structure is **physical inference with optional, truthful survivor interpretation**. Comparison can support a reasoned decision; Dorn can clarify it, but neither rescue nor dialogue makes a panel usable.

The recurring string can support “this wall is a candidate access.” *Access*, *service way*, *removable wall* or maintenance responsibility remain possible meanings. Entering one crawl confirms that route, not the wording or every mark.

Sampling a new angle/state, manipulating evidence and committing a framed record all happen while the game runs. The record stores that view and location without automatic interpretation. Opening the journal pauses everything, including enemies and oxygen. Paused examination covers stored records and the already-visible frozen view; nothing advances.

Captured records persist on return and through death and revival as knowledge, independently of the return of carried property. Personal notes may contain observations, quotations, plans or hypotheses; their wording persists without automatic validation. This facsimile example requires no in-game editor. [Language and Journal](/Hold%20The%20Flood/Language%20and%20Journal) proposes comparison and annotation tools.

No record grants hidden permission. Knowledge changes which wall to open and route to budget for; failure gives visible feedback, with remaining options subject to route state, threats and oxygen.

| Non-duct access | Matching string beside open removable slab; passable connection has ordinary floor, walls and standing clearance, no duct hardware | Weakens “strings mark ducts”; supports access across physical forms. |

Strings, seams, panels and connections must agree in every visit order. Crawlways plus the visibly non-duct passage support “matching strings identify candidate wall access” more strongly than “strings identify ducts.” Maintenance responsibility remains a real rival.

Each released fastener and a fully moved panel are visible completed checkpoints that persist; cancelling loses only the unfinished stage and spent time/oxygen. The cutter is suit-issued, non-detachable and not exchangeable for a module. The decision is whether a promising crawl justifies work while the game runs, uncertain traversal, oxygen and exposure versus known door stages or retreat.

This is distinct from Dorn's paint. Firsthand use grounds the crew gloss and seam advice. Dorn does not know the wording, whether it names access or maintenance responsibility, or current route condition. He does not choose which crawl is worth the oxygen.

Dialogue needs these variants:

- With one string recorded, he gives the crew term “crawl mark,” his firsthand basis and the actionable suggestion to inspect the panel seam. This is an early optional survivor-led information path.

- With the unmarked duct or a failed access, he distinguishes the routes he used from current conditions; he does not infer historical access from an unexplained blockage and leaves the rival open.

Without Dorn, the open crawl, returnable blank wall and non-duct passage support the same candidate-access prediction. This provenance is not every player's experience. In either path the player judges context, spends resources and interprets the outcome. Missed strings recur; records retain breadcrumbs. Collapse or welding makes failure clear but still lowers confidence. The door or retreat remains only if threats and oxygen allow. No path guarantees progress.

The selected policy permits two routes: early optional survivor interpretation after one record, or unaided physical comparison. Early help offers clearer direction and a visible colony role while leaving contextual inference and action to the player; the unaided route makes the practical reading emerge from their comparisons. Neither is inherently more reliable or more “owned” by the player.

The strongest alternative makes Dorn's interpretation required. Its exact gate is **Dorn rescued and aboard, with a wall-string record shown in the matching dialogue state, before authored information is sufficient to recognise the crawlway around the jammed door**. That requires the explanatory encounter before this route to the interpretation and could use fewer environmental comparisons, but makes this discovery depend on rescue and a return to the wall.

The optional-help policy costs at least three matching string sites, a visibly non-duct connection, panel/seam states, one unstringed duct, one optional unusable marked access, four dialogue conditions, records, failure feedback and reverse-order continuity. Required help may save comparisons but spends dialogue-state and rescue-gate handling.

- These rules are untested; the example's wording, journal/help details and the literal meaning of the wall strings are proposals.