This is a very enjoyable book. It's a quick read, I listened to the entire audiobook in one sitting and had a good time with it. 

I do wish that the book had a bit more worldbuilding, as what we do get is quite interesting. I also think some of the events feel a little incongruous with the fairly light tone of the writing, although I'm not sure if I would really want the book to be any darker. 

Overall this was a decent story which I think a lot of kids will love.