Hermione is Right
Events [3]
Harry Potter and the Philosophers Stone [B1]
The Midnight Duel [B1-C9]
154-156
Hermione Tries to Stop Harry and Ron from Dueling
Hermione Granger and Neville Longbottom try to stop Harry and Ron from sneaking out to the duel. Hermione follows them out of the common room and Neville joins the group, not wanting to be left alone. Despite their objections, all four set off toward the trophy room.
157-160
The Group Is Nearly Caught by Filch and Mrs. Norris
Harry, Ron, Hermione, and Neville sneak through the corridors toward the trophy room. However, they overhear Argus Filch and Mrs. Norris nearby, forcing them to flee and hide in a different corridor. They narrowly avoid being caught.
160-162
The Group Discovers Fluffy, the Three-Headed Dog
While escaping from Filch, the group accidentally stumbles into the forbidden third-floor corridor, where they encounter Fluffy, the three-headed dog. They realize the dog is guarding something, possibly related to the mysterious package Rubeus Hagrid retrieved from Gringotts Wizarding Bank Wizarding Bank.