This book takes place back at Hogwarts, while the war with Voldemort is sill going on. Hogwarts has a new Potions teacher, while Snape, the former Potions teacher, is now teaching Defense Against the Dark Arts. Harry is getting help from a mysterious person who calls himself the half-blood prince and Dumbledore is coming and going. Voldemort's followers are getting closer and closer to Hogwarts...
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