The lower library of the Azure Cloud Sect smelled of mildew, silver-worm dust, and centuries of dried animal glue.Chu Yuan spent his third afternoon as an outer disciple sitting beside an arched window on the second floor, three heavy ledgers open before him. To the library attendants who glanced his way, he appeared to be doing what any newly elevated disciple might do: studying foundational treatises on Qi circulation and medicinal lore to make up for two years lost in the woodshed.In reality, his eyes followed the ink strokes of an architect’s draft dated forty-seven years earlier.The Enforcement Hall was not merely a stone pavilion with high rafters and iron lanterns. Beneath its black-tile courtyards lay three subterranean tiers, originally constructed during the dynasty’s frontier wars as fortified spirit-stone granaries. When the current Enforcement Elder’s lineage took power, those lower tiers had been reclassified as disciplinary vaults, sealed behind triple-lock iron gate