01
An archive of absence
One proposed chamber contains records of civilizations that no longer exist in the surviving Manifest. The Sanctum's constant Root identity might allow it to preserve histories that other places lose when realities change.
02
How it works
Rather than reproducing every event perfectly, the Archive could hold curated documents, Reflected impressions, and echoes that require careful interpretation. This preserves mysteries and allows contradictory reports to remain meaningful.
03
Relationship to Lunor
Lunor might explore the Archive using Echo Reading, eventually discovering traces of the Unwritten Eclipse. The scope, reliability, and even the Archive's final name remain open for user approval.