Descents

Descents refer to the authorized vertical expeditions from catalogued floors of the Tower into the uncharted, unarchived levels below. Unlike routine circulation between adjacent registered floors, a Descent is an act of archival expansion governed by formal protocols, most notably those detailed in Annex Omega of the Sixth Concordance. The practice is distinct from the more ritualized Vellum Descent, and while all Vellum Descents are Descents, the inverse is not true.

Legal Framework and Authorization

The primary legal basis for conducting a Descent is Clause XVII.4 of the Sixth Concordance, which establishes the requirement for formal sanction and oversight. A proposed itinerary, known as a Spiral Log, must be submitted to the Office of Catalogic Logistics for review of logistical feasibility, and final authorization must be granted by the Office of the Archivist-Librarian. Crucially, any undertaking bearing the official designation "Descent" must be supervised by a Librarian of the Third Order or higher. This oversight is intended to prevent catalogic contamination and ensure procedural adherence, though the effectiveness of this measure is a subject of ongoing debate within the Chamber of Procedural Anomalies.

Contradictions arise when cross-referencing the Sixth Concordance with the earlier Third Concordance. The Third Concordance, in Annex Delta, implies that descent is a natural right of any resident scholar, requiring only a notification filed with the local Stacks Warden. This conflict is typically resolved by the principle of chronological precedence, wherein the newer Sixth Concordance supersedes the older, though traditionalist factions within the Oneirologists' Guild frequently cite the older document in appeals.

Procedure and Equipment

The standardized kit for a sanctioned Descent, as per Annex Omega, includes: one calibrated pedometer for vertical measurement, one wax-sealed ledger of blank vellum, three graphite styluses, one sealed tin of Luminous Lichen (Grade III-B), one knotted rope of prescribed length (50 fathoms, hemp), and one silver bell for signaling separation in low-visibility conditions. The use of personal items not listed in the Annex is strongly discouraged and requires a Form 44-7 "Exception for Sentimental Necessity" to be filed in triplicate prior to departure.

The act of descent itself follows the "Rule of the Returning Step." At the threshold of the last known floor—marked by a brass plaque known as the Terminus Plate—the supervising Librarian must state the expedition's intent for the record. The team then proceeds downward, cataloguing environments, phenomena, and entities. Each new, verifiably distinct environment is provisionally assigned a floor number extrapolated from the established sequence, though these numbers are often re-mapped by the Directorate of Descent upon the team's return.

Types and Records

Descents are categorized by purpose. A Catalogic Descent seeks to inventory a new continuum of reality. A Recovery Descent aims to retrieve a previous team or its artifacts. A Verification Descent is launched to confirm or refute the findings of a prior, potentially anomalous report. The record for most consecutive Descents without procedural interruption or mandated debrief is held by Elara of the Unspooled Thread, who completed seventeen such journeys between 742 and 758 ATC (After Tower Calendar). Her final report consisted of the single word "Recursive," and she was subsequently promoted to the Silent Archives, a standard career progression.

Risks and Anomalies

The primary documented risks of Descent include: topological enfolding (where the descent path loops back to a higher floor), ambient concept leakage (where abstract notions from the unarchived floors begin to manifest physically in the team's equipment or persons), and chronic aphasia. The latter is the most common, manifesting as an inability to describe or record certain experienced phenomena, often resulting in ledger pages filled with deliberate scratches or coherent descriptions of entirely irrelevant objects.

A persistent anomaly, noted in over 60% of post-Descent debriefs filed after 800 ATC, is the hearing of a low, rhythmic humming from shafts or vents, described as "neither mechanical nor biological." Attempts to locate the source during Descents have uniformly failed, and the Office of Catalogic Logistics has classified it as an environmental constant of the lower reaches, not warranting further dedicated investigation under Resolution 891.3.

Post-Descent Protocol

Upon return, the team enters a mandatory 48-hour quarantine in the Annex Epsilon holding cells. During this period, the ledgers are copied by scriveners working from behind a treated glass barrier. The original ledgers are then sealed and filed in the Provisional Stacks, while the copies are edited for internal consistency and catalogic plausibility by the Directorate of Descent. Only the edited copies are entered into the main catalogue. The physical and mental state of the descent team is assessed; those displaying signs of conceptual instability or persistent aphasia are often offered lateral transfer to restful duties, such as dust mitigation in the upper serene stacks.

Ultimately, a Descent is not considered complete until its edited findings have been assigned a permanent catalogue code and integrated into the Tower Guide. This integration is the moment the descended-into reality becomes, for all bureaucratic and existential purposes, real within the Tower.