Really good book.I am a Harry Potter addict and this one is one of the best as he gets to know the true story of his parents.A captive prisoner in Azkaban is also on the loose(sirius Black).Harry is not allowed to Hogsmeade as Proffessor MCGonall doesn't allow anybody without permission forms to go.The muggle gurdians of Harry didn't allow him to.So,the sinister guards of Azkaban are there to guard Hogwarts.
