I loveee a book based on characters learning and mastering their abilities, but I've found most books that fit this description are usually YA or middle school grade and I prefer something more mature. The characters should ideally be 18 or older.
Just to give you a sense of what I'm looking for, the training arc at Sinegard in The Poppy War would be the perfect example. I don't mind the characters 'graduating' as long as the majority portion of the book focuses on the learning and school like environment.
It would be an added bonus if the characters could go on adventures or trials to test their abilities!
I've seen people mentioning The Magicians by Lev Grossman, but after reading reviews on the characters (and the casual misogyny), I'm not sure I want to take it up.
Would love any suggestions you may have!
by Nyccalp