Hermione Steals Potions Ingredients from Snape's Office

PAGES: 186-188

The trio realizes they still need ingredients from Professor Snape's private stores to complete the Polyjuice Potion. Hermione volunteers to steal them during their Potions lesson by causing a diversion. During class, Harry throws a Filibuster firework into Gregory Goyle's cauldron, causing chaos, which allows Hermione to slip into Snape's office and retrieve the necessary ingredients.