Defence Against the Dark Arts Jinx

"You see, we have never been able to keep a Defense Against the Dark Arts teacher for longer than a year since I refused the post to Lord Voldemort."

-Dumbledore in 1997

The Defense Against the Dark Arts Jinx is a jinx that Voldemort cast on the job when he was refused it by Dumbledore. No Defense Against the Dark Arts teacher has lasted more than a year after it was casted. The incantation is unknown. It probably lifted when Voldemort died

1991-92 School Year

Quirinus Quirrel