Arbre

First Appearance and Context

Arbre is referenced during the winding of the great clock in a math’s Mynster, where the heavy meteorite weight is likened to the core of the world. The name also frames in‑world dating through A.R. as seen on formal citations.

Roles/Actions and Affiliations

Arbre is the setting for the Mathic World and the wider Extramuros society. Timekeeping and cosmography conducted from the Mynster use Arbre as the reference body for calendars and observations. Across concents, the rooftop Starhenge couples clockwork to skywatching; descriptions include a fixed all‑sky device ("Clesthyra's Eye") used to record meteor tracks. Around the time of a noted near‑miss by a large asteroid, similar all‑sky devices were installed on starhenges across the world. In one past near‑miss, avout were convoked to build a spacecraft intended to nudge an incoming rock; when calculations showed it would miss, the mission continued as a study effort, and the laboratory site later became known as the concent of Saunt Rab.

Relationships

• The Mynster and its rooftop starhenge tie Arbre’s daily rites to cosmography and timekeeping.
• Formal dates on Arbre use the A.R. era in institutional and scholarly contexts.

Descriptions/Characteristics

Arbre is presented as a planet‑like world with a metallic core (mirrored by the Mynster’s nickel‑iron meteorite weight). Traditions mention a North Pole and stone weights quarried from the Cliffs of Ecba and hauled over polar routes. Narration shows varied geographies, including rivers and floodplains, towns and industrial districts, and forested belts.

Current Status/Location

Arbre is currently inhabited and active: maths conduct regular rites and wind their clocks, starhenges remain in use for timekeeping and observation when accessible, and extramuros life proceeds around the walls during permitted contact periods such as Apert.