Sounds like you have a good lit course. I just finished rereading the first Artemis Fowl and it’s even more perfect the fifth time. I can’t recommend those enough. (Though the author started slacking off at around book seven. I think the story would have been pretty well completed with Time Paradox). I really loved Fablehaven and the first Beyonders book (it certainly got the word Arimfexendrapuse stuck in my head), but I felt like the second and third books added little to the story. Candy Shop War is by the same author, Brandon Mull, and it is one of my all time favorites.