Kingdom Keepers 1: Disney after Dark

I had this on my epub disc of books. As I started to read it I found it somewhat simple and flat. I then found out it is for ages 9-12. Still not a reason to have it be simple in plot I think.
But, I enjoyed this book. Just the idea that after the parks close that the characters are alive in Disney World is wonderful. (Especially to the mind of a 11 year old Disney fan I think)
The idea that bad characters are bad etc is great.
I plan on reading the rest of the series.