Harry Potter and the Chamber of Secrets
Chapter 11 - The Duelling Club
Because Hermione still needs some ingredients from Snape′s store cupboard for the potion, she induces Harry to arrange a chaos in Potions, so she can steal the ingredients unnoticed. The news of Colin being Petrified is told all over the school and Lockhart agrees to the idea to found a club to train self-defence. With Prof. Snape assisting him Lockhart tries to present himself in the Duelling Club, what Snape prevents by using the Disarming Charm.
When Harry manages to hold back a snake, which wants to attack Justin, the whole hall is quiet.
In the common room Harry finds out that he has spoken Parsel and that nobody understood him. Until then he accepted it as normal, but Ron tells him that You-Know-Who is the only recent Parselmouth known and that being one is a talent of a dark wizard.
When Harry wants to explain Justin, what really happened, the next day, he sees him lying on the ground Petrified and Nearly Headless Nick floating in mid-air, who seems to be filled with black smoke. Peeves, the poltergeist, alerts the teachers and Prof. McGonagall brings Harry to the headmaster′s office.