Resonant Phase of The Great Dampness

Definition and scope

The Resonant Phase of The Great Dampness is the designation applied to the interval during which The Great Dampness manifested as audible phenomena rather than as humidity, condensation, or the more usual forms of structural weeping. It is recorded as having occurred in Tower Year 588, principally at Aperture Beta, where the Aperture Marked Beta 12 underwent a spontaneous phase-shift and began emitting a sustained tone of measurable duration. The phase is catalogued under both the Resonant Phase heading and the dampness sequence, an overlap which has generated more concordance traffic than any other single ambiguity in the Tower's modern record.

The phase is conventionally said to have opened with the shift and closed with the adoption of Phase Beta: Examination in its standardised form. Whether it closed at all, as distinct from being declared closed, remains contested; see Disputes below.

Sequence of events

Contemporary inventories place the onset in the winter of Tower Year 588, on a floor then administered by the Office of Wet Repairs. The Aperture Marked Beta 12 was under routine examination when its threshold register — a brass leaf normally recording passage counts — began returning figures that corresponded to no known traffic pattern. Within four days the register had ceased recording passage entirely and had begun recording tone: a low, steady note, transcribed variously as falling between the second and third octaves below middle C.

Within a fortnight the tone was audible on adjoining floors. The Great Bell of the Great Clock is recorded as having answered it twice, an observation that appears in the ledger of the Bell Warden but in no other contemporaneous document, and that the Beta Revisionists have subsequently treated as decisive. Repair crews dispatched to the aperture found the masonry dry to the touch and cold in a way that resisted measurement — thermometers placed against the surround returned readings, but the readings did not agree with one another, or with themselves on being read twice.

Standard cataloguing protocols, as then constituted, proved insufficient. The phase's defining characteristic was that it could be recorded only by an instrument already in the room; a clerk sent to fetch a second instrument returned to find the first had become quiet, and the phenomenon had accordingly been entered in the ledger as "transient, one observer." Three such entries survive in the dampness annexes, all in the same hand.

Administrative consequences

The failure of the existing examination procedures prompted the drafting of Phase Beta: Examination in its standardised form, which remains the operative procedure for aperture anomalies of auditory character. The standardisation was resisted at the time by the Office of Wet Repairs, which held that dampness was not an auditory matter and that the aperture had simply become a bell. That office's memorandum of objection, filed in Tower Year 591, was upheld in part and overridden in whole; its author, the clerk Hesper Lord, was reassigned to stairwell inventory and did not return to aperture work.

Phase 1 procedures were fundamentally reevaluated in the aftermath, though the reevaluation is dated to the Primary Phase of Tower Year 5983 by some recensions and to 588 by others. The Sixth Concordance dates it to neither, stating instead that Phase 1 procedures "were reevaluated at such time as reevaluation was required," which has been cited both as a decisive ruling and as an evasion, depending on which office is citing it.

Disputes over classification

The principal disagreement concerns whether the Resonant Phase of The Great Dampness is the same event as the Resonant Phase sub-category of the Auditory Phase, or a distinct occurrence that happens to share a name. The Beta Revisionists hold that they are identical, and that the coincidence of terminology reflects a genuine continuity of mechanism: dampening, they argue, is a form of resonance, and the masonry techniques employed during later repair efforts under The Great Dampness confirm that the Tower's wet structure had always been singing. The Office of Wet Repairs holds the opposite, and has done so since Tower Year 592.

A third position, associated with the annotator Marrow Quill, holds that the two are distinct events whose conflation is the direct result of a transcription error in the eleventh recension of the dampness register. Quill's argument rests on the observation that the Resonant Phase of the Auditory Phase is dated to a floor interval that does not exist, whereas Aperture Beta demonstrably does.

The Concordances do not resolve the matter. The Seventh Concordance refers to "the resonant matter of the Dampness" in the singular; the Ninth Concordance refers to "matters resonant" in the plural; and the Eleventh Concordance amended both clauses in Tower Year 604 without indicating which reading it preferred.

Standing procedure

Examination of Aperture Beta continues under Phase Beta: Examination, with the resonant sub-annex applied whenever a threshold register returns tone. Clerks assigned to the aperture are required to record observations in ink within the room in which the observation occurs; instruments may be carried to and from the aperture, but ledger entries may not. This rule, added by amendment in Tower Year 612, has never been formally explained in the text, though the Office of Wet Repairs' covering note records that "the second clerk keeps finding the first clerk's entry absent."

The aperture itself remains dry.