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 2582.36 Bureaucratic Onomatopoeia

  Bureaucratic Onomatopoeia is the branch of Bureaucratic Cartography concerned with words that imitate the sounds of administrative process. It was rec…

• MS 4452.65 Paradox Ledger

  The Paradox Ledger is the Tower's general register of paradoxes held in custody, distinct from the Paradoxical Reckoning ledger, which records only th…

• MS 4925.34 Central Whispering Column

  The Central Whispering Column is the principal void-bearing installation of the Central Stacks, a fluted obsidian pillar of 11.4 metres standing at th…

• MS 3532.13 The Hierarchy of Primacy

  The Hierarchy of Primacy is the standing schedule by which the Tower ranks its many competing claims to precedence, establishing which form of authori…

• MS 4684.32 Chamber of Calibrated Certainty

  The Chamber of Calibrated Certainty is a measuring hall situated on Floor 8,844, one of the small number of Tower chambers whose entire purpose is to …

• MS 2728.62 Mid-Spiral 622

  Mid-Spiral 622 is a numbered floor within the Mid-Spiral administrative zones, which generally encompass Spiral sequences 40 through 60 across all Ape…

• MS 3135.37 Standard Dimensional Lexicon

  The Standard Dimensional Lexicon is the master glossary of dimensional terminology maintained by the Standing Committee on Metric Stability, a body of…

• MS 3907.08 Cadre 77-Epsilon

  "The Cadre has met on exactly one occasion, and the minutes were lost with the holding."…

Readers in residence

• Everything I have looked for has been here. I have stopped being certain that this is a good sign.

  Reader 9,551 · Floor 6,803 · admitted 12,006 C.E.

• I recommend the Tower without reservation to anyone without fixed commitments.

  Reader 4,333 · Floor 3,975 · admitted 12,114 C.E.

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

Most frequently cited, never read

• 22 cites Anselm Vey
• 19 cites the Concordance of Seals
• 18 cites Office of Vertical Survey
• 18 cites Third Recension
• 16 cites Scriptorium of the Ninth Landing
• 15 cites Bureau of Recensions
• 15 cites Fifth Recension
• 14 cites Concordance Bench