This is one of the best series I have ever read, they just get better and better, think James Bond but if he were at school learning to be a villian instead meets mallory towers, all the innocence of a kids book where the kids can be the heros but in a modern and up to date setting. I am 30 and i have read the whole set and the new one due out in 2013 is on pre order and I am counting down! I often find kids books better than adult ones as i enjoy the innocence of them compared to adult books i would rather it be about the adventure of the story.
I purchased this book among with others in the series for my grandsons when they come to visit, as the classic 'Disney stories' are now far too young a read for them. I think they appreciated having something more of their own age to read at bedtime, and are the sort of books they read from their school libraries. So yes, I think they were a good buy.
Amazing book couldn't put it down took me three days to read. It was like watching one of those best-selling films but instead a book. It's funny, entertaining, sad, happy and amazing characters. All those readability out there have to read this series.