Tucked deep in the bowels of the Grimhau lies the most complete post-Cataclysmic library, belonging to the enigmatic Collegium Lacunae. The Collegium is a collective of sages, scholars, priests and, primarily, wizards, dedicated to the preservation of knowledge, and the reversal of the Cataclysm. In particular they prize magical knowledge, especially magical knowledge relating to the Cataclysm. They are well known to pay in gold for any tome or manuscript, regardless of condition or subject matter.
The Collegium itself comprises about a dozen members, half of whom are in residence at the Grimhau at any time. The Collegium’s master is rumored to be an ancient elf, one who was old even when the colorless fire rained down upon the hapless Empire. But the master has never been seen in public. Indeed, only a few of the Collegium’s elite cadre have ever met the Master.
Don’t let appearances fool you; these chains are enchanted.
Despite its secure location, and the additional protection of resolute dwarvish guards hired directly from the Grimhau itself, the Collegium’s library employs two additional safeguards: chains and curses. All of the library’s hundreds of books are chained to walls and shelves. The most valuable (and dangerous) of these tomes are chained in a secure vault, enchanted with various wards and curses. Visitors must possess impeccable credentials to enter the library, and even then a hefty gold deposit is required, with guards in constant attendance.
Some members of the Collegium travel the Riverlands, tracking down leads to forgotten texts. There are always at least two members, attended by servants and a formidable body of dwarvish guards. They are known for carrying gold and silver with them, for the acquisition of books and the occasional magic item. But make no mistake, attacking a Collegium expedition is no light undertaking.
The Collegium has been known to hire adventurers for more dangerous tasks (or, sometimes, require such services from adventurers requesting admittance to their library). They are happy to perform minor favors for those who serve them well, including magical healing, the identification of magic items, and providing answers to obscure questions.