Knee-reversal hex

Knee-reversal hex
Type	Hex
Effect	Put knees on backward

"I hexed the man who came for it. I'd like to see him fly with his knees on back to front, the great hairy hog."

— Gertie Keddle

The knee-reversal hex (incantation unknown) was a hex which was invented in or before the 12th century.

Effect

The knee-reversal hex caused the victim's knees to reverse position from the front of their legs, where they were supposed to be located, to the back.

Known uses

Caster(s)	Date	Notes
Gertie Keddle	1100s	Gertie Keddle used this hex when a man playing an early form of Quidditch came to her garden to retrieve his ball.
Unknown	1754	Torquil McTavish had this spell used on him during a broom race.
	August 1877	Angelus Peel had this spell used on him in the Tournament that Nobody Remembers.
Hufflepuff student	1890s	The student used this spell on a second-year.
Merula Snyde	Before 1987	Merula claimed to have learnt the knee-reversal hex sometime prior to her fourth year at Hogwarts.

Appearances

• Quidditch Through the Ages (First mentioned)
• Wonderbook: Book of Spells (First appearance)
• Pottermore (Mentioned only)
• Harry Potter: Hogwarts Mystery (First identified as Knee-reversal hex)
• Hogwarts Legacy (Mentioned only)