Domains: Itinerant learning, the wandering scholar, knowledge-by-foot.
Era of ascension: Age of Craggus (~40,000 years ago). Cohort: dead. Died: Lost Ages (~30,000 years ago), when the Laughing Plague killed her scholars on the road and the manuscripts they carried were burnt in the panicked quarantines that followed their deaths.
Worshipped by: The itinerant teachers of the Craggus era — small circuits of scholars who walked routes between rebuilt settlements teaching what they could and copying what they were paid to — the host households that fed them in exchange for instruction, and the small academies of the recovering world that were not yet centralized enough to keep their knowledge in place. No living culture maintains her worship. (The worships edge is authored downstream on the worshipper, not here.)
Graelith's library was a place. Vossuróth was a person walking. The CR-era recovery did not yet have the population density or the institutional inheritance to maintain libraries in the Golden Age sense, and the rebuilt knowledge accordingly traveled — by scholar, on foot, in copied manuscripts carried in a kind of satchel that became iconographic of her cult. Her doctrine held that knowledge in transit was the right shape for the age: the road was the temple; the host's table was the rite; the manuscript copied in exchange for a meal was the offering. Her circuits crossed each other at well-known caravan stops, where her scholars exchanged copies and updated each other's work.
The Plague used her own infrastructure against her. The scholars walked from town to town; the manuscripts traveled with them; the disease traveled with both. When the towns understood what the visiting scholars were bringing, the response was not selective. Manuscripts were burnt with the bodies. The kind of quarantine the Craggus-era polities could improvise did not distinguish between the scholar and what she had been carrying. Her cult ended at the rate scholars could be killed on arrival, which was roughly the rate they could walk — within two decades the circuits had collapsed and the satchels were gone. What had been copied and was sitting in a host's library was occasionally preserved by accident; what was on a scholar's back when she was burnt is what the cult lost.
Graelith's institutional knowledge had been wrecked once already; Vossuróth's mobile heir to it was wrecked once more. The Lost Ages that followed are the lost ages partly for this reason.