"Now, Harry, cast a fully-charged Verdimillious Duo Spell. Once cast, the spell will show you objects hidden by dark magic. Use what you find to leave the room!"
Professor Lockhart[src]

The Verdimillious Duo Spell (Verdimillious) is a charm that produces green or red energy from the tip of the wand[1]. It holds a number of useful purposes, and is rather easy to cast[1].


Professor Quirinus Quirrell taught this charm to his first year Defence Against the Dark Arts class in the 1991-1992 school year along with the Verdimillious Charm and Verdimillious Tria[3]. Professor Gilderoy Lockhart later revised it with his second year Defence Against the Dark Arts class the next year[1].


Like its precursor, Verdimillious Duo can have two forms with very different effects, although unlike the Verdimillious Charm, this spell's dual forms are marked by varying colours.

If one quickly casts the charm while aiming for a specific target, green sparks and electrical discharge will explode from the wand and crackle all around the victim, hence proving very useful in duelling[1][2]. When used a number of times by more than one witch or wizard on a werewolf, the beast will be temporarily subdued[2].

If one draws out the casting, saying the incantation slowly and waving the wand in a circle overhead, aiming for thin air above the caster, an orb of red light will be thrown skywards from the tip of the wand like a flare[1]. Once it reaches a certain point it will explode several feet away in a blinding flash of white light, thereby illuminating the entire room for a short time[1]. While the light of the charm fills the room, objects hidden by Dark magic will be revealed, although unlike its precursor, objects hidden by Verdimillious Duo remain tangible and visible even after the light fades[1]. Nonetheless, green sparks will still be floating around the enchanted objects for a while after the light disappears[1].



This incantation is most likely derived from Latin "viridis", meaning "green" and French "mille", meaning "a thousand". The modifier "duo" means "two" and is common in incantations.

Behind the scenes


Notes and references

Defence Against the Dark Arts (D.A.D.A.)
D.A.D.A. at Hogwarts
Classroom 3C · Temporary Classroom · Hogwarts Turris Magnus · Professor's Office · Storeroom · Staircase · Lesson Cup · Race Cup · Dumbledore's Army
Galatea Merrythought · Patricia Rakepick · Quirinus Quirrell · Gilderoy Lockhart · Remus Lupin · Barty Crouch Jr. (as Alastor Moody) · Dolores Umbridge · Severus Snape · Amycus Carrow (as Dark Arts teacher)
The Dark Forces: A Guide to Self-Protection · Break with a Banshee · Gadding with Ghouls · Holidays with Hags · Travels with Trolls · Voyages with Vampires · Wanderings with Werewolves · Year with the Yeti · The Essential Defence Against the Dark Arts · Defensive Magical Theory · Dark Arts Defence: Basics for Beginners · Confronting the Faceless · Magical Drafts and Potions
Spells studied at Hogwarts under D.A.D.A.
Curse of the Bogies · Disarming Charm · Freezing Spell · Hex-Breaker· Hex-deflection · Hex Zapper · Impediment Jinx · Knockback Jinx · Nonverbal spells · Reductor Curse · Seize and Pull Charm · Shield Charm · Stunning Spell · Verdimillious Charm · Verdimillious Duo Spell · Verdimillious Tria · Wand-Lighting Charm · Cruciatus Curse · Imperius Curse · Killing Curse
Creatures studied at Hogwarts under D.A.D.A.
Boggart · Cornish Pixie · Grindylow · Hinkypunk · Iguana · Inferius · Kappa
· Red Cap · Vampire · Vampire bat · Werewolf