"There were all these mutant skeletons in there, of muggles who'd broken in and grown extra heads and stuff."
Ron Weasley on this hex's use in the Great Pyramids[src]

Mutatio Skullus[1] is the incantation to a hex which mutates the victim's head, causing them to grows extra heads.[2]



From Latin "mutatio", meaning "change" or "mutation"[3] and "skullus", meaning "skull"[4]

Behind the scenes

  • This spell's effects seem similar to the effects of Transmogrify, a spell which also mutates the target.


Notes and references

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