First-Floor Girls' Toilets
Location information

First floor,[1][2] Hogwarts Castle, Scotland, Great Britain

The First-Floor Girls' Toilets[2] are a lavatory located on the first floor of Hogwarts Castle. It is in this lavatory that Harry Potter and Ronald Weasley saved Hermione Granger from a mountain troll, marking the beginning of their friendship.



After a Charms class in the morning of 31 October, 1991, Ron, angry at Hermione for lecturing him on the proper pronunciation of Wingardium Leviosa, insulted her behind her back. Hermione, still in earshot, became upset and headed to this lavatory to cry. She remained in the bathroom all that day.

Later that night, Quirinus Quirrell let a mountain troll into Hogwarts Castle, hoping to create a diversion long enough for him to steal the Philosopher's Stone. The troll eventually made its way from the dungeons up to the first floor, heading into this bathroom. Harry and Ron, who had been looking for Hermione to warn her about the troll, locked it inside before realising the room was the same bathroom Hermione was in.

Unlocking the door and running into the room, Harry and Ron found the troll approaching Hermione, destroying the sinks along the wall as it walked. Harry managed to successfully distract the troll by jumping on its back and shoving his wand up the troll's nose. Thinking quickly, Ron then proceeded to knock out the troll by using the Levitation Charm to hit it in the head with its own club.

The commotion caused by this altercation caused several staff members, including Minerva McGonagall, to discover what had happened. After some consideration, the three ended up gaining a net increase of five house points for their adventure, and were sent back to their common room. The lavatory was presumably repaired afterward.


Notes and referencesEdit

Hogwarts Castle
Locations on the first floor
Class 1 · Minerva McGonagall's office · Stone Bridge · First-floor girls' lavatory · Classroom 1A · East Wing · Classroom 1C · Classroom 1D · Classroom 1E · Advanced Arithmancy Studies classroom · Rear Hall · Tapestry Corridor · Severus Snape's storeroom · First Floor Corridor · Common Room corridor · Empty classroom · Empty classroom · Hospital wing · Muggle Studies Classroom · Classroom 4F · Poppy Pomfrey's office · Passage of the Fouls · Detention Chamber · Moaning Myrtle's Bathroom · Transfiguration Classroom Maze
Portraits, statues and other artwork located on the first floor
Elizabeth Burke · Fat Friar · Hengist Rawkes · Female nurse in the hospital wing · Male nurse in the hospital wing · Beaumont Majoribanks · Scholar · Google Stump · Portrait of a bearded man holding a book · Count
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