Wow, a very interesting ending to an intriguing fantasy series. Each book has been about Arthur collecting the keys and collecting the pieces of the Will of the Architect, and as he does this he changes physically and receives powers. But, what I really liked is that despite becoming more powerful and having new tendencies to be prideful, Arthur checks himself and reminds himself that he needs to do what's right. After all the keys and parts of the Will come together - the ending was not to be predicted and I was on the edge of my seat. I liked how it all turned out and would definitely recommend this series to any children's fantasy fans.