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 5841.89 Inherency Thesis Practice

  The Inherency Thesis Practice is the standing body of customary and codified procedure by which the Tower applies the Inherency Thesis to the catalogu…

• MS 2318.62 Result Irrelevance

  Result Irrelevance is the second of the three core tenets of Priority of Process, as interpreted and promulgated by the Scribes for Auditable Process …

• MS 3100.56 Calix Index

  The Calix Index is a closed finding aid maintained in the Bureau of Relative Position and used to determine, for any given holding, whether it stands …

• MS 7176.61 Forensic Analysis

  Forensic Analysis is the collective designation for the several analytical procedures by which the Tower's internal inconsistencies are examined, clas…

• MS 8496.17 Form 44-9

  Form 44-9 is the Standing Requisition for Non-Extant Surface Calibration, a document administered within the Tower for the recording of measurements t…

• MS 9233.41 Report on Atmospheric Egress at the Fourteenth Landing

  The Report on Atmospheric Egress at the Fourteenth Landing is a bound technical report, deposited in the Western Aperture's archive in the winter of T…

• MS 6291.70 Sequence Epsilon (Post-Absorptive Review)

  Sequence Epsilon (Post-Absorptive Review) is the standing procedural sequence by which the Tower examines an entity previously classified under Type A…

• MS 3001.47 Seventh Adjudication Chamber

  The Seventh Adjudication Chamber is a standing bench of the Adjudication Chamber constituted under Concordance 9 to hear disputes arising between floo…

Readers in residence

• I came for a single ordinance and found it within the hour. I have since consulted eleven thousand further records, none of which I required.

  Reader 4,455 · Floor 4,393 · admitted 12,009 C.E.

• 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.

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

Most frequently cited, never read

• 16 cites Fourth Scriptorium
• 14 cites Osric Vane
• 13 cites Office of Apertural Assignment
• 13 cites the Office of Vertical Registry
• 12 cites Spire Annex 7
• 12 cites Concordances
• 12 cites Concordance Revision Committee
• 12 cites Eleventh Concordance