Chapter 11 Summary

Harry is released from hospital and is disappointed to find that Ron and Hermione aren't there to meet him. He finds them in Moaning Myrtle's toilet, where they are busy preparing the Polyjuice potion. They feel they have no time to waste, after yesterday's performance at the Quidditch match. Firm in the belief that Draco Malfoy is the heir of Slytherin, they are determined to find out the truth. Harry tells them what he has learned in hospital overnight. All three students are worried, a worry that is shared by the rest of the students as news of Colin Creevey spreads and pupils buy charms and talismans to protect themselves.

The final ingredients for the Polyjuice potion are gathered during one of Snape's classes. Harry creates a diversion by throwing a firework into Goyle's potion. While Snape is sorting out the resulting chaos...