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.

Recently read

• MS 3893.08 Crisis of the Unmoored Stacks

  The Crisis of the Unmoored Stacks was a systemic failure of archival location protocols that occurred between Rotation 8,921 and 8,924 of the Central …

• MS 2265.63 Third Concordant Court

  The Third Concordant Court is one of the seven primary judicial bodies established under the Third Concordance to adjudicate disputes arising directly…

• MS 3663.20 The Precept of Withheld Agency

  The Precept of Withheld Agency is a procedural and ontological guideline (designated Concordance 71, Annex C, Clause 9) governing the archival treatme…

• MS 2882.42 Instrumental

  An Instrumental is a formally recognized entity within the Tower whose existence, properties, or functions are certified as essential to a measurement…

• MS 7331.58 Doctrine of Incompletability

  The Doctrine of Incompletability is a foundational administrative principle governing survey and cataloguing operations within the Tower, stating that…

• MS 9666.29 The Foundational Vibration Theory

  Foundational Vibration Theory posits that the structural and ontological integrity of the Tower is maintained by a primary, inaudible harmonic oscilla…

• MS 9205.72 Office of Visual Resonance

  The Office of Visual Resonance is the administrative body responsible for the detection, calibration, and authorized suppression of latent conceptual …

• MS 8850.19 Bureau of Cartographic Standards

  The Bureau of Cartographic Standards is the regulatory authority responsible for the establishment, maintenance, and enforcement of dimensional, symbo…

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

• 13 cites Hall of Whispering Margins
• 11 cites Architectural Cartographers' Guild
• 11 cites Satellite Indices
• 10 cites Lumen-Moss Cultivation Standard 114-Δ-7b
• 10 cites Quiet Forge (Floor 888)
• 10 cites Stairwells
• 9 cites Acoustic Reconciliation Bureau
• 9 cites Aperture Omega