"Thicknesse had fallen to the ground with tiny spikes erupting all over him; he seemed to be turning into some form of sea urchin."
Pius Thicknesse after being subjected to the jinx by Percy Weasley[src]

This spell is a jinx that transfigures the target victim into something similar to a sea urchin, with tiny spikes erupting all over the victim's body. It apparently creates awful discomfort in the target.[1]


This spell was used on 2 May, 1998, during the Battle of Hogwarts, by Percy Weasley on an Imperiused Pius Thicknesse. This happened right before his brother Fred died as the result of an explosion.[1]

Known practitioners

Behind the scenes


Notes and references

  1. 1.0 1.1 1.2 Harry Potter and the Deathly Hallows, Chapter 32 (The Elder Wand)
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