Harry Potter and the Philosopher's Stone - Summary

Part 11

On Halloween, the faculty is alerted of a wayward troll in the school and escort the students back to their houses. Harry and Ron sneak away to find Hermione, who is in the girl's bathroom and missed the warning. After inadvertently locking the troll in the girl's bathroom with Hermione, Ron and Harry knock the troll unconscious. Hermione takes the blame for the battle, and the three become fast friends. During Harry's first Quidditch match, his broom is jinxed by a mysterious source. Hermione and Ron assume that Snape is jinxing Harry after Hermione sees Snape muttering to himself. She sets Snape's robes on fire in time for Harry to regain control of his broom and win the game with a spectacular catch.