Staircase between The First-Floor Corridor and Hogwarts Serpentine Corridors

: " [...] running down the nearest flight of stairs, but Peeves merely slid down the banister on his back beside him."
: — Narrative[src]
The first-floor corridor and Serpentine Corridor were connected by a staircase, at the bottom of which was Minerva McGonagall's office. Harry Potter used it to deliver a note to McGonagall from Dolores Umbridge during a Defence Against the Dark Arts lesson in Classroom 3C.
Category:Staircases