I'm in the same boat, in a way. My world has no magic either, and I started out with potions here in Ellipsa.

[She initially struggled with most other types of magic (except for the healing kind) due to her inherited vow of non-aggression, hence potions were one of the best ways for her to apply herself, but the gears have slowly been turning and opening new possibilities to her since. She honestly isn't sure if a potion could really cure such a strong madness, but she keeps quiet about that, not wanting to dampen Maomao's enthusiasm.

Once they reach the second-lowest level, she intensifies her light magic, illuminating the rows of bookshelves. Spotting a map, she stops to study it.]

There's a countercurse section! That'd be the most likely place to have anything about it, wouldn't it?

[Of course, there's no telling what else may be in that section... but at least they're not on the library's bottom level (yet)!]