it's french.
spoilers
no, you need to go to the holy place and get books from there.
try getting a ring of luck, that gives you better books.
however, if you are stuck on the demon, just use chane lightning and hope for hhigh roles. Also, use the hall of portals to easely jump between places.
major psoilers
if you get to level 71, you can use the books in the arcane fortress to level up.