Hermione reveals the jinx on the parchment

PAGES: 354-354

Hermione informs Ron and Harry that she placed a jinx on the parchment they all signed during the first Defense group meeting. If anyone reports their plans to Umbridge, they will know who betrayed them. She assures Ron that the person who betrays them will experience severe consequences, making Eloise Midgen's acne look mild in comparison.