Characters are what you would find a school. Think this book is more suited to younger children which you can read a chapter a night to them. Alternatively young teenagers may be interested. I did like the inventions and the rules of pixies which was explained very well.
This was an excellent story. I have not read any books by this author before, but would definitely read more. The characters were totally engaging and the story was intriguing with lots of other characters and motives to throw you off the scent. Loved the dog.