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My Rating: 5 stars

**If you haven’t read previous books, don’t read!**

During his third year at Hogwarts, Harry’s experience is much different than it was the previous years. First of all, he has a new, mysterious Defense Against the Dark Arts teacher, who used to be friends with his father. Also, Mr. Weasley, Ron’s father, informs Harry that he isn’t safe anymore. The mass-murderer, Sirius Black, who was locked up in Azkaban for twelve years has escaped and is after him.

Harry, his friends and almost everyone at Hogwarts isn’t safe at all. There is nothing they can do, except keep the school under watch by the dementors. Although they have taken all the precautions to keep the students and the school safe, there is a traitor in their midst that can ruin it all.