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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."

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].


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


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


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 Harry Potter and the Order of the Phoenix, Chapter 17 (Educational Decree Number Twenty-Four)

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