7 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 2650.11 Affirmation
• MS 9348.93 Aperture Designation
• MS 7989.75 Heraldry of Negated Thrones
• MS 3606.00 Intrinsic Continuity Guild
• MS 1356.49 Map Room

  The Map Room is one of two officially designated chambers within the Tower bearing that title, located on Floor -17, Annex Theta. Formally e…

• MS 5263.24 Odd Numbered Administrative Prefix
• MS 8349.83 Pre-Descent Verification

  Pre-Descent Verification is the mandatory sequence of checks performed on any Type 1 holding, descent party, or instrument before it is rele…