Professor McGonagall: "Professor Moody! What... what are you doing?!"
Bartemius Crouch Jr (disguised as Alastor Moody): "Teaching!"
Professor McGonagall: "Is that a... is that a student?"
Bartemius Crouch Jr (disguised as Alastor Moody): "Technically it's a ferret."
— Barty (as Moody) arguing with McGonagall[src]

Human to ferret (incantation unknown) is a Transforming spell that transfigures a human into a ferret.


B4C13M1 Draco turned into a ferret

Barty Crouch Jr (disguised as Mad-Eye Moody) used this spell on Draco Malfoy in the 1994-1995 school year when he tried to curse Harry Potter behind his back. Minerva McGonagall later performed the appropriate untransfiguration.

During the Calamity in the 2010s which affected the Wizarding World, a curse Confoundable transfigured an unnamed Slytherin student into a ferret. Volunteer members of the Statute of Secrecy Task Force had to cast the General Counter-Spell to return the student to their original form and send them back to Hogwarts.[2]

Behind the scenes

  • In September 1994, when Draco Malfoy was transfigured into a ferret, he tried to get to the dungeons. Complete transfiguration into an animal makes a human think like the animal, except Animagus transfigurations. This suggests that the attempted escape had nothing to do with him wanting to get to his common room and was coincidental.


See also

Notes and references

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