|"I show not your face but your heart's desire."|
During their search for the dead unicorn in the Forbidden Forest in the 1991–1992 school year Rubeus Hagrid instructed Harry Potter, Hermione Granger, Neville Longbottom and Draco Malfoy to use Red Sparks if they were in trouble and green sparks if they have found the unicorn.
Behind the scenes
- Given that this spell and the Verdimillious Charm have identical effects, it is almost certain that "Verdimillious" is just the incantation for Green Sparks, not unlike how "Vermillious" is the incantation for Red Sparks.
- Harry Potter and the Philosopher's Stone (Mentioned only)
- Pottermore (Spells/Duels) (First identified as Green Sparks)