The last book of the series.
The conclusion was good and I now love Thimbletack, though initially I kinda despised him. I also like Hobsqueal who for the first time displayed that he is brave :P this was probably the best part of the series and had lot of action, turns and twists. Even though I had kinda guessed what might happen, it was fun to read.
Now I so badly want to watch this movie! First series that I actually liked after such a long time :D
Updated July 17th: I watched the movie and did not like it that much. I mean lot of things are missing in the movie - like Elves, Dwarves. They have added some new stuff that I did not like - a line drawn around the house by Arthur, Arthur takes Lucinda with him. But still it was fun to watch the Goblins surrounding the house and the Griffin scene was good too :)