Calpheon librarian Annolisa Rosie's amity shop, requires 500 amity and 9 million silver.

In the main quest u have [Crossroad] Silence, We're Done Here! https://bdocodex.com/th/quest/21201/1/?sl=1 then u can get knowledge from Gorgath

KNOWLEDGE ACQUISITION

Obtain From ANNOLISA ROSIE COSTS SILVER AND AMITY
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Obtain From GORGATH FREE CHAT

GRADE ACQUISITION
Use Annolisa Rosie to Proc S


AUXILARY MOB PAGES

Org Loot Table, Title & Quests