- "He was on the sixth stair when there was a loud, wailing, klaxon-like sound and the steps melted together to make a long, smooth stone slide like a helter-skelter."
- — Description[src]
Glisseo is the incantation of a charm that can be used to transform a staircase into a smooth slide[1]. It is very old, having been used in the medieval ages[2].
History
During the Battle of Hogwarts on 2 May, 1998 Hermione Granger cast this spell the stairs on which she, Harry Potter, and Ron Weasley were standing flattened into a chute down which they slid very fast down the staircase in an effort to escape the Death Eaters pursuing them.
Known practitioners
- Godric Gryffindor[2]
- Helga Hufflepuff[2]
- Hermione Granger[1]
- Rowena Ravenclaw[2]
- Salazar Slytherin[2]
Etymology
This spell's incantation originates from the French verb "glisser", meaning "to slide".
Appearances
- Harry Potter and the Order of the Phoenix (First appearance)
- Harry Potter and the Deathly Hallows (First identified as Sliding Spell)