Slytherins Wear "Potter Stinks" Badges

PAGES: 297-299

During Potions class, the Slytherins, led by Draco Malfoy, wear badges that say "Potter Stinks." Harry is infuriated by the display and gets into a heated exchange with Malfoy, which results in a duel. Both Harry and Malfoy cast spells that backfire, with Hermione and Goyle suffering the consequences.