**First discrepancy.** The R-3 wall pressure record marks its last stable reading with a mechanically impressed pressure-loop cycle value. Yeva dates that history to before the final evacuations; Aster's supply ledger records a canister and restraint shipment later; Dorn recalls nobody crossing after he sealed the receiving section. All three can be honest and incompatible, and their testimony exists only if that person is aboard and shown the record.

**Discriminating observation/action.** At objective 6 the player restores the sampled pressure line, follows physically visible source/destination evidence or the long route, and opens a **newly proposed record drawer placed at that existing destination fixture**. Its transfer card carries the completion impression from the same pressure-loop cycle counter whose earlier value is physically impressed on the R-3 wall record. The exposed ratchet advances when the line cycles and has no observed reverse control; the destination value is later in that mechanical sequence. Visitor-pair knowledge can predict the destination, but gauges and the long approach remain sufficient. A failed continuation, unpowered line or missing current access records an incomplete attempt, not a false witness.

**Correction and limit.** The shared counter supports one narrow order: this apparatus completed a transfer after the R-3 record's last stable pressure cycle. It does not reconcile Aster's and Yeva's calendar clocks; clock drift remains a rival for their dates. Counter replacement, reset or a copied false impression also remain possible until separately evidenced. The result establishes neither who travelled, why Dorn sealed the section, whether the patient survived nor which account is morally right. A shift changes current access, not the captured sequence values.

**Later use, cost and human consequence.** The physical chain needs only captures of the wall impression and destination card/counter; no survivor is required. The destination becomes one bounded investigation/rescue lead and its line state helps choose a pressure-control route. Back aboard, the player decides whom to show. Only a present, participating person speaks: Yeva may withdraw a specific accusation that Dorn falsified the shutdown without forgiving the seal; Aster may admit her ledger cannot identify a passenger; Dorn may reveal that he sealed the section after hearing its cycle, not seeing who crossed. An absent or unselected person contributes nothing. Postponement causes no unseen conversation or relationship penalty. The chain changes a relationship and next action without solving a culprit.

| **Optional-secret station account** | Objective 12 physically joins every actual placed playable room/group under the eventual selected mechanism; no story choice or diagnostic pulse is required for physical completion. | Leave the joined network as built, or route an optional current diagnostic through already discovered seal/profile/berth sites and compare its results with named stored records. | Joins persist. The diagnostic reports only present reach, input/output transformations and whether the profile coupling currently passes a signal. Historical order remains the player's revisable comparison of records below. | This is not a mandatory true-ending gate, release action or proof of a captive. What the complete layout does after later deaths remains the owner's unanswered stabilisation question; this page adopts neither result. |

| **24 modules / 40 placed rooms** | Collar/service intake, clinical ward/pressure destination, regulator gallery, iris/deeper cell and core area are already implied spaces. | Assign one berth trace, one controlled culture/profile station, one destination record drawer and one mutually exclusive core observation package to actual placed instances; place the new trapped seal strip within the existing objective-11 instance. | **+0 claimed modules/rooms; four placement obligations plus one cross-listed archive input** for the later ledger. If no existing instance can host one honestly, record an increment then. |

| **12 placed mechanisms** | Objective-9 regulators/reply, objective-11 iris and existing hospital treatment/containment machinery. | Active/bypassed/after-isolation culture results; one reversible core isolation/coupling instance; branch-specific baffle result; present-only diagnostic reach/break states. The profile card and berth trace each gain one cross-reference field. | Allocate **one of 12** to core isolation if not already cross-listed; add state/record variants to existing instances, not invisible free mechanics. |