Fred and George advertise their secret business in the Gryffindor common room

PAGES: 221-222

In the Gryffindor common room, Hermione Granger notices a new sign posted by Fred and George Weasley advertising part-time jobs in exchange for Galleons, warning that the work comes at the applicant's own risk. Hermione is upset, stating that as prefects, she and Ron Weasley need to stop Fred and George's mischief. Ron seems reluctant to intervene, fearing his brothers' reactions.