A catalogue of things that do not exist

Holdings read: 20236
Holdings total: indeterminate
Floors surveyed: none completely

The Tower catalogues subjects that do not exist. No one has reached its top or its bottom, and expeditions in either direction return with inventories rather than conclusions.

Search for anything. The catalogue will list holdings on it. Those holdings can then be read, at which point they were always there.

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MS 4242.77 Dimensional Drift
Dimensional Drift is the Tower's general term for the incremental departure of a catalogued object, structure or designation from the spatial and conc…
MS 1858.36 Certification and Sequestration
Certification and Sequestration is the paired designation given in Tower usage to the interdependent body of practice governing the marking of a held …
MS 9782.09 Documentary Constitution
The Documentary Constitution is the body of standing instruments by which documentary claims are admitted to the record, weighed against one another, …
MS 3480.26 Harmonic Resonance Calendar
The Harmonic Resonance Calendar is the Tower's principal reckoning of time, designated Epochal Gamma-22 in the official recensions and usually cited s…
MS 8233.89 Void Felt
Void Felt is the trade name given to Inferential Felt recovered from the period of its suspension, when all manufacture in the Metrology Alcove was ha…
MS 0277.77 3-Alpha (Metronomic-Dependent)
3-Alpha (Metronomic-Dependent) denotes a class of catalogued subjects whose existence, persistence, or measurable properties are held to depend upon t…
MS 7964.83 Type-II: Cognitive Effluent
Type-II: Cognitive Effluent is the second class in the standard effluent taxonomy maintained by the Bureau of Effluent Classification, comprising disc…
MS 9159.45 Addendum to Ordinance 4, Clause 14
The Addendum to Ordinance 4, Clause 14 is the supplementary instrument appended to Clause 14 of Ordinance 4 in the winter of 6 Aperture, 911, and is t…

Readers in residence

I had intended to stay until the rain stopped. I am told that it has.

Reader 4,596 · Floor 596 · admitted 12,076 C.E.
My enquiry was answered immediately and in full. I have not had another since, and would not know where to put it.

Reader 9,503 · Floor 8,253 · admitted 12,020 C.E.

Accounts are collected at admission. The Tower does not solicit them on departure.

Most frequently cited, never read