第十二章（100）

Chapter 12: Polyjuice Potion

Hermione finishes brewing the Polyjuice Potion, and the trio uses it to transform into Crabbe, Goyle, and Millicent Bulstrode to infiltrate the Slytherin common room. They question Draco Malfoy about the Chamber of Secrets but learn that he knows nothing about the attacks. However, they do discover that the last time the chamber was opened, a student died, and Hogwarts was nearly closed. The potion's effects wear off, and the trio narrowly escapes detection. Hermione's transformation goes wrong, leaving her in the hospital wing with cat-like features. The chapter reveals crucial information and the risks involved in their investigation.