Arc 4The Third-Floor Door
Herman learned about Fulgor and began suspecting that Quirrell was investigating the forbidden third-floor corridor. He, Harry, and Draco found Fluffy guarding a trapdoor, and Quirrell and Marlene later checked the disturbed room before Snape confronted Quirrell about his dangerous lessons.
- Quirrell demonstrated a mutated Vampire Monster in class, and Neville, Hugo, Harry, and Herman helped slow it before Herman summoned help with a firework.
- Herman stayed after class to ask Quirrell about Fulgor, and Quirrell advised him to master Lumos before attempting the powerful light spell.
- Herman sought Professor Marlene’s help with wandmaking and goblin alchemy, and she recognized Kramer’s notes and offered to guide his studies.
- Herman, Draco, and Harry noticed Quirrell near the forbidden third-floor door, while Neville separately became suspicious of Quirrell and proposed investigating him.
- Harry, Draco, and Herman explored the corridor at night and discovered Fluffy, a three-headed dog guarding a room, and Herman’s sword and Harry’s summoned dogs failed to defeat it.
- As they headed back, Harry hid the group beneath her Invisibility Cloak while Quirrell and Marlene approached and discussed Fluffy and the obstacles.
- Quirrell noticed the damaged door, entered with Marlene, and found Fluffy agitated with missing patches of fur, and Marlene subdued the dog while Quirrell healed it.
- Snape treated Quirrell’s bite wound and challenged him for exposing first-years to a Vampire Monster, and Quirrell agreed to postpone practical lessons and use safer substitutes.