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"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."
—Use of this spell as a security measure[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

Glisseo was in use by the Middle Ages, when the Hogwarts founders enchanted the stairs of the girls' dormitories to turn into slides should any boy attempt to enter, but not vice versa, as they believed girls to be more trustworthy than boys.[2] 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

Etymology

This spell's incantation originates from the French verb "glisser", meaning "to slide".

Appearances

Notes and references

  1. 1.0 1.1 1.2 1.3 1.4 1.5 Harry Potter and the Deathly Hallows, Chapter 32 (The Elder Wand)
  2. 2.0 2.1 2.2 2.3 2.4 2.5 Harry Potter and the Order of the Phoenix, Chapter 17 (Educational Decree Number Twenty-Four)