Overview

Protego Diabolica is the incantation of a very powerful and dangerous dark protective charm. The Charm would encircle the caster with a ring of Black fire that would immediately incinerate the caster’s enemies and leave their allies unharmed. The black fire could also take the appearance of creatures with wings that had the ability to spread rapidly as well as being capable of large scale destruction. It was seemingly similar to the Fiendfyre Curse. The caster also had the ability to control where the flame can go as well, giving the caster the ability to attack a specific target. The flames are capable of rapidly destroying an entire city or a large area if not extinguished in time. The Fire had the ability to also protect the caster from certain offensive spells from outside of the circle. It is highly rare to survive the flames as the wounds often were instantly fatal to the victims of the fire.

Effects

The effects of this curse were destruction and death to say the least. This was seen true through an example Gellert Grindelwald deemed a test of loyalty. Krall fell victim to the fire when his recent disloyalty caused the fire to immediately incinerate him upon entry. This was again shown as Leta Lestrange crossed through the fire. Initially passing through without harm from the fire in a show of loyalty until she turned on him and Vinda Rosier causing Grindelwald to use the flames to engulf her.

History

• Early September 1927 - Gellert Grindelwald cast this spell in the Lestrange Mausoleum in Paris as a test of loyalty among his followers as well as to effectively kill a large number of his enemies, most of which were Aurors that were there only to arrest him. Vinda Rosier, Abernathy, Nagel, MacDuff, Carrow, Krafft, Credence Barebone and Queenie Goldstein all showing as well as giving Grindelwald their full loyalty all were able to pass through the flames joining his side unharmed. Krall contemplating turning on Gellert did not make it far at all before the flames engulfed her. The black flames were dispelled by the combined forces of Newt Scamander, Propentina Goldstein, Theseus Scamander, Yusuf Kama, and Nicolas Flamel after Leta Lestrange sacrificed herself. The combined efforts saved the entire city of Paris from the destruction and fury of Gellert Grindelwald.
• 1990-1991 - Jacob travelled to Japan after collecting evidence from a captured R member- a Secret Dark Arts group. There he discovered half of a Dark Scroll in a mountaintop cave and was badly burned with Protego Diabolica, the fire set there protecting the Dark Scroll. Jacob was sent to St. Mungo’s in England where he was treated for his severe injuries by Healer Miriam Strout who ultimately saved his life with the help and advice of Albus Dumbledore.

Credits/References

Written by Aleric Selwyn
Base code by Andrew Sutherland, edited by Iselin Merilä and Desmond Gray.