Just like the first, a nice book full of adventure and fun. It still has a lot of parallels with the Harry Potter series, but it's original enough to keep my attention.
The only problem I have with it (and with the first book too) is how over obvious everything is. I don't mean the plot twists, some (not all) of them are quite well done. But the characteristics of the people, their reactions, their feelings, their motivations; everything is laid out and explained. It feels lazy and condescending. You don't have to tell people "he did it because he felt like this", it would be much more interesting and satisfying to read if the characters' actions made their motivations clear without the need of explanation. And don't tell me that is because it's a young adult book. Even young children are capable of more perception than this.
Still, quite entertaining.