I read the first one in a day, I enjoyed the whimsical idea and the fact they're running around the Magic Kingdom after dark. I tried to read it like the age group it was written for, but I honestly disliked the book with a passion.
I'm a cast member, I live and work in the Magic Kingdom. The whole time during the book the only thing I wanted to give him was a map. It was like he went to the parks on a vacation, thought it would be a great idea for a book and he took the keys to the kingdom tour, and then wrote the book. He seemed to forget about cast members until the last few chapters (he kept calling them employees or workers. No. Stop.). Then he described the tunnels. Okay fine, but the characters? Really? That made me want to cry. The trash system was accurate, except for the fact a human being can't fit into it, much less have a choreographed fight in it.
They take a monorail to DHS in the first book(I think), I couldn't figure out what they were doing until like a chapter later.
Lets just say I spent the whole book either angry or confused, but sadly I may read the rest just to see if they get better.