10 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 3678.39 Central Index
• MS 1326.81 Commentary of the Ninth Recension
• MS 4822.88 Directive 3114beta
• MS 3596.32 Lorn

  Lorn is the designation under which the Tower's senior ledgers record an official holding two concurrent ranks, and by extension the cluster…

• MS 9147.33 Mandatory Perceptual Buffer
• MS 2006.10 Mystic Plumbers’ Union

  Mystic Plumbers’ Union is a Grade IV Fraternity officially designated under the Sixth Concordance as the singular authority for the installa…

• MS 0594.65 Office of Unstable Grounds
• MS 8931.39 Reconciliation Team
• MS 5677.04 Register of Unattributed Sound
• MS 0522.55 Second Chronology

  The Second Chronology is a subsidiary chronology within the Tower, certified by the Chronology Guild and calibrated, as a matter of routine …