Harry's world Harry’s world gets turned upside down on his 11th birthday, however. A giant, Hagrid, informs Harry that he’s really a wizard, and will soon be attending Hogwarts School of Witchcraft and Wizardry. Harry also learns that, in the wizarding world, he’s a hero. When he was an infant, the evil Lord Voldemort killed his parents and then tried to kill Harry too. What’s so amazing to everyone is that Harry survived, and allegedly destroyed Voldemort in the process. News to Harry. When Harry hears all this, he doesn’t know what to think. However, everything Hagrid tells him turns out to be true, and with a joyful heart Harry starts wizarding school in September. He quickly becomes best friends with a boy named Ron Weasley, and before they even make it to Christmas, they break tons of school rules when they attack a troll and prevent it from killing fellow student Hermione Granger. After the troll incident, the three become inseparable, and Harry is amazed to have found such great friends.