8 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 2171.13 1938 (The Aperture Sealing)
• MS 0211.22 Aperture Marked Sigma
• MS 3071.98 Custodian of Silent Halls

  The Custodian of Silent Halls is a supervisory office responsible for the acoustic administration of halls in which no sound is permitted to…

• MS 3543.38 Decremental Spiral System

  The Decremental Spiral System is the classification regime established by Clause 12 of the Third Concordance, under which a floor's number d…

• MS 4733.41 Heartwood of the Seventh Spiral
• MS 8110.20 Niche of Alara
• MS 5449.62 School of the Reluctant Measure
• MS 1555.40 The Great Unwriting

  The Great Unwriting was a period of administrative erasure in the Tower, conventionally dated from the striking of Clause 47 of the Sixth Co…