Minerva

Well-respected among the mages of Sigil, Minerva is even more well-known as the proprietor of a successful kiosk in the Grand Bazaar, selling a wide selection of scrolls, staves, and other goods for the discerning wizard or sorcerer.

Minerva's finger is firmly on the pulse of magic use in the Cage, as she belongs to several mystic societies. And sooner or later, every purveyor of magic in the city seems to wind up at her shop.