So I'm doing a hard challenge run. Pick Marina for Bible of GoF&H. Save after collecting books from the Mayor and Bookstore, but before collecting the ones in the orphanage and around Prehevil. I'm looking for Sylvian and Gro-goroth. I get Sylvian, Vinushka, Recipes 1 and 2. Go again, I get them in a different order, same books. Go again, same result, this time I decide to use a book of enlightenment in front of the last bookshelf to farm for Gro-goroth's. I reset, over and over, and it drops nothing every time, same with Father Domek's bookshelf.

I swear I've savescummed the books in the Mayor's house many times before and got different results. I don't know if some bookshelves are seeded or if I'm just getting extremely unlucky.