Harry Potter Books Wikia

Petrified students in Hospital Wing

Petrification was the process of being turned into stone. It was caused by the gaze of a Basilisk if you look in it's eyes through a reflection. Looking straight into it's eyes caused instant death instead. During the 1992-1993 school year, the Serpent of Slytherin had Petrified several people at Hogwarts School. Petrifictation could be undone using the Mandrake Restorative Draught.


Those who were Petrified get turned into stone - completely paralysed and unconscious. It took careful examination to find out whether a person was in fact dead and whether they were just Petrified.[1] It happened when they looked at a reflection of a Basilisk's eyes. It was possible for a ghost to be Petrified but they will turn a dark grey and will be trapped in the location they were Petrified unless a fan was used to take them to another. They could look into the eyes of a Basilisk, but since they were dead, they could not die for a second time.[2]

The Mandrake Restorative Draught was capable of undoing petrification but it took until the Mandrake were at full size until it was possible.[1] The Full Body-Bind Curse was similar but it was temporary and easily undone.[3]


In the 1942-1943 school year, the Serpent of Slytherin Petrified several students at Hogwarts School, but killed Myrtle Warren.[2][4] The petrifications were eventually undone. In the 1992-1993 school year, it happened for the second time and even a ghost, Nearly Headless Nick was Petrified. The Mandrake Restorative Draught was eventually created at the end of the school year and the petrifications undone.[5]

Known Petrifications

Name Date Event
Mrs Norris
October 1992
saw the reflection of the Serpent of Slytherin in the floor.[1]
Colin Creevey
November 1992
saw the Basilisk through a camera.[6]
Nicholas de Mimsy-Porpington
December 1992
saw the Basilisk eye-to-eye but since he was a ghost, he could not die again.[7]
Justin Finch-Fletchley
saw the Basilisk through Nearly Headless Nick.[7]
Penelope Clearwater
April 1993
saw the Basilisk through a mirror.[8]
Hermione Granger

Notes and sources