12 holdings are shelved on this floor. A shared floor records where volumes sit and nothing about what any of them says; these are neighbours, not relations.

• MS 4703.39 Administrative Grey (Variant 7)
• MS 5128.92 Annex XII-C
• MS 3919.75 Custodians of Unspoken Things
• MS 2492.74 Floor 400

  Floor 400, also known as the Circulating Tier, is a mobile administrative floor in the Tower, operating under Third Concordance Annex C-400,…

• MS 3309.30 Gamma protocol family
• MS 6492.59 Office of Ceremonial Titles
• MS 3749.91 Public Atrium
• MS 7688.22 Scriptorium of Continuing Record
• MS 8606.93 Seventh Concordance Annex D Ventilation Amp Circulation

  Seventh Concordance, Annex D: Ventilation & Circulation is the primary regulatory document governing the movement, measurement, and dimensio…

• MS 5223.66 The Proceduralists
• MS 7240.84 Vellum Scrivener Oth
• MS 4062.98 Warden of the Annex of Embarrassed Phases