Upper Labyrinth

The Upper Labyrinth is described as part of the boundary between the Decenarian and Centenarian communities within a concent. An avout expects to be summoned there as the Centenarians prepare for their rare opening, suggesting that it serves as a controlled interface between maths rather than an open corridor.

Role and Function

• Separates the Decenarian Math from the Centenarian Math.
• Used for formal, controlled communication with the Centenarians in the lead‑up to their Apert.
• Access involves reaching a grate in a dark room, behind which a Hundreder poses questions; the exchange supports Centenarian preparations for opening their gate.

Notable Features

• A labyrinthine approach culminating at a barred grate.
• The interview setting is explicitly described as a dark room, underscoring its controlled and secluded nature.

Context and Status

• Mentioned in connection with the long‑cycle opening of the Centenarian Gate, when the Hundreders plan their rare interactions beyond their walls.
• Its use is attested by a Decenarian teacher who anticipates being called there in the years preceding that opening.
• Recollections identify Fraa Paphlagon as a senior avout who entered the Upper Labyrinth many years earlier (about twenty‑two years prior), with his treatises circulated shortly before that entry during a Decennial Apert.

No broader layout or detailed map of the labyrinth is provided; only its boundary role and the interview-through-a-grate practice are described.