- "It was not normal fire; Crabbe had used a curse of which Harry had no knowledge: As they turned a corner the flames chased them as though they were alive, sentient, intent upon killing them. Now the fire was mutating, forming a gigantic pack of fiery beasts: Flaming serpents, chimaeras, and dragons rose and fell and rose again, and the detritus of centuries on which they were feeding was thrown up in the air into their fanged mouths, tossed high on clawed feet, before being consumed by the inferno."
- — Description[src]
Fiendfyre (incantation unknown) was a curse that produced enchanted flames of immense size and heat that were capable of destroying nearly anything in its path, taking the form of gigantic fiery beasts such as serpents, chimaeras, dragons, and birds of prey that seek out living targets.
Description and effects
- "Fiendfyre — cursed fire — it’s one of the substances that destroy Horcruxes, but I would never, ever had dared use it, it’s too dangerous."
- — The dangers of the spell[src]
Fiendfyre was an immensely powerful fire that couldn't be extinguished by normal or enchanted water, It was also very difficult for the caster to control, flowing from their wand in a continuous stream of flame. If the caster flicked their wand when the stream of flame was still running from it, a jet of fire would shoot off and become a flaming animal.
When cast, the fire appeared with a roaring, billowing noise and gave its victims only a split-second's warning to escape, quickly consuming anything in the vicinity of its caster. The flames were of an abnormally large size and take the shape of fiery monsters and beasts such as snakes, dragons, eagles, and chimaeras, constantly mutating into other beasts as well as powerful, formless flames that destroy all things around itself. The fire even possessed a sentience of its own, a continuous (though far from latent) desire to burn anything it could. It would pursue any nearby lifeforms and anything that it could destroy, and was capable of incinerating anything through mere contact.
As Fiendfyre was inherently extremely dangerous, most casters would have major difficulty with controlling the fire once it had been unleashed. There was also a charm to cease the flames, but unfortunately Vincent Crabbe never paid attention in class long enough to learn them, therefore costing him his life. Casters with greater skill had an easier time controlling the flames. It was unknown if the fire was able to burn off on its own.
Fiendfyre was one of the few substances known to be able to destroy a Horcrux. Hermione Granger was aware of this, but never considered the use of it against Voldemort's Horcruxes due to the inherently dangerous, uncontrollable nature of the spell.
|Merula Snyde||1988–1989 school year||Merula tried to teach Jacob's sibling this curse, however she lost the control of the fire until Patricia Rakepick came and managed to turn off the fire.|
|Amycus Carrow||1997–1998 school year|
|Vincent Crabbe||2 May 1998||Crabbe cast it during the Skirmish at the Room of Requirement while it was transformed into the Room of Hidden Things. He died in the ensuing magical inferno.|
- "Like it hot, scum?"
- — Vincent Crabbe[src]
Behind the scenes
- In Harry Potter and the Deathly Hallows: Part 2 Gregory Goyle conjures Fiendfyre and dies instead of Crabbe, since Crabbe had been cut from the film. Also, whereas Crabbe died because he could not run fast enough from the fire, Goyle was depicted as having been unable to stop the flame from pouring out of his wand (who then ends up throwing it away into the flames), and falling into the flames from grabbing a loose chair while climbing up a mountain of various objects to safety. Additionally, water could be used to douse the fire, though the rate the flames spread limited its effectiveness.
- In the film adaptation, Fiendfyre was not used to completely destroy Rowena Ravenclaw's Diadem. Instead, Harry stabbed it with the Serpent of Slytherin's fang to damage it, and then Ron kicked it into the Fiendfyre to finish the job. This led Voldemort's mangled soul to possess the flames briefly and scream in pain before it was destroyed.
- In the film adaptation of Harry Potter and the Goblet of Fire Fiendfyre may had been used by a Durmstrang student at the beginning of the Triwizard Tournament, mostly for show. Though as the film came out before the curse debuted in the books, it's likely that the similarity was coincidental.
- Fiendfyre was used to assist in duels twice in the films. In the film adaptation of Harry Potter and the Order of the Phoenix, Lord Voldemort conjures a giant fire snake during his duel with Albus Dumbledore, who manages to hold off the flames. Likewise, Bellatrix Lestrange likely uses Fiendfyre to destroy the Burrow in the film adaptation of Harry Potter and the Half-Blood Prince. However, both events contradict the events of the books. In Harry Potter and the Order of the Phoenix, Dumbledore forces Voldemort to conjure a silver shield, and Rufus Scrimgeour visits the Burrow in Harry Potter and the Half-Blood Prince instead of Bellatrix and Fenrir Greyback. Therefore, of these acts of Fiendfyre, none could be considered canon yet within the continuity of the books.
- The protective dark charm Protego Diabolica is remarkably similar in its effects to Fiendfyre, with the notable exception of the former being harmless to those allied with the caster; it is possible that these both exceptionally dark and destructive spells were related in some way.
- It is possible that Gormlaith Gaunt may have used this curse to burn down her sister's cottage as she was able to easily rescue her niece without being harmed.
- Harry Potter and the Goblet of Fire (film) (Possible appearance)
- Harry Potter and the Order of the Phoenix (film) (Non-canonical appearance)
- Harry Potter and the Half-Blood Prince (film) (Possible appearance)
- Harry Potter and the Deathly Hallows (First appearance)
- Harry Potter and the Deathly Hallows: Part 1 (Possible appearance) (Appears in flashback(s))
- Harry Potter and the Deathly Hallows: Part 2
- Harry Potter and the Deathly Hallows: Part 2 (video game)
- Wizarding World (Mentioned only)
- LEGO Harry Potter: Years 5-7
- Harry Potter for Kinect
- Harry Potter: Hogwarts Mystery
- Harry Potter: Wizards Unite (Mentioned only)
Notes and references
- Harry Potter and the Deathly Hallows, Chapter 31 (The Battle of Hogwarts)
- Harry Potter and the Deathly Hallows: Part 2
- Harry Potter and the Order of the Phoenix (film) - Chapter 29 (Wizard's Duel)
- Harry Potter: Hogwarts Mystery, Year 5, Chapter 28 (About Merula)
- Harry Potter and the Goblet of Fire (film) - See here
- Harry Potter and the Order of the Phoenix (film) - See this image
- Harry Potter and the Half-Blood Prince (film) - See this image
- Writing by J.K. Rowling: "Ilvermorny School of Witchcraft and Wizardry" at Wizarding World