The Verdimillious Duo Spell (Verdimillious) was a charm that emitted green sparks from the tip of the wand. It was a more powerful version of the Verdimillious Charm. It held a number of useful purposes and was rather easy to cast.
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. Professor Gilderoy Lockhart later revised it with his second year Defence Against the Dark Arts class the next year.
These green sparks could also be used reveal objects hidden by Dark magic in a blinding flash of white light, thereby illuminating the entire room for a short time. Unlike its precursor, objects revealed by The Verdimillious Duo Spell remained tangible and visible even after the light faded. Nonetheless, green sparks would still be floating around the enchanted objects for a while after the light disappeared.
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 of increasing power.
Behind the scenes
- It is an upgrade of the Verdimillious Charm and the precursor of Verdimillious Tria.
- This spell was meant to be in the Game Boy Advance version of the video game adaptation of Harry Potter and the Goblet of Fire. This is evidenced by the game's debug menu, which is inaccessible during normal gameplay but can be accessed via a cheating device such as an Action Replay. One of the options is a list of all of the text in the game, with "Verdimillious Duo" being listed along with the game's other spells.
- Harry Potter and the Philosopher's Stone (video game) (First appearance) (Green, GBC)
- Harry Potter and the Chamber of Secrets (video game) (PS1 and GBC)
- Harry Potter and the Prisoner of Azkaban (video game) (Green, GBA)
- Harry Potter and the Goblet of Fire (video game) (Cut from final version)