The Magician King is the sequel to Lev Grossman’s The Magicians. There were parts of this one that I liked better than the first, and things that weren’t as good, but the biggest difference is that there’s no Harry Potter school stuff in this book.
The story starts with Quentin as one of the royals (with his magician friends) of the magical land of Fillory. He’s a little bored and goes off on a quest to be a hero. A bit of that seemed like a step back from where he got to by the end of the first book. The action takes him to Earth again, and he learns how little he knows about everything. Parallel to that is Julia’s school of hard magical knocks story of how she became a magician (she didn’t go to Brakebills, the school in the first book).
Overall it’s a good book and the ending is more satisfying than the end to the first one. I’d gladly suggest this for a mature YA audience.