Painfully kills victim
- "It was definitely a curse that killed her - probably the Transmogrifian Torture. I've seen it used many times, so unlucky I wasn't there, I know the very counter-curse that would have saved her ... "
The Transmogrifian Torture (incantation unknown) was a deadly and very painful curse that, eventually, killed its victim.
Until it was discovered by Albus Dumbledore that Mrs Norris had merely been Petrified, Professor Gilderoy Lockhart claimed that the cat had been subjected to this spell and that he knew the counter-curse.