Have you (or the missus) read The Magicians? I mentioned it on a thread like this a while back.
I think y'all would find it interesting. Sequel coming out pretty soon (if it wasn't released this week).
It's a kind of "grown up" or psychological riff on Narnia/Harry Potter/The Once and Future King where he tries to kind of delve into some of the details of that kind of world. It's a little bleak, and doesn't really stand up to the works it's clearly based on, but it's still a different take on things. And the story is still really engrossing. Look it up.