- "The Revealing Charm will reveal invisible ink and messages hidden by magical means. Simply tap a book or parchment with your wand and any hidden message will be revealed. This spell is more than sufficient to overcome the basic concealing charms and so is a favourite of parents and teachers alike."
- —Miranda Goshawk, Book of Spells[src]
On 1 February, 1993 Hermione Granger used this spell on Tom Riddle's Diary to see if anything could be read. Nothing appeared after she used. the spell because that was not the enchantment placed on the book.
- "She tapped the diary three times and said, "Aparecium!""
- —Hermione using the spell on Tom Riddle's diary[src]
- Numerous arithmancers and other developers.
The Latin word appareo which means "to become visible or to appear".
Behind the scenes
- In the Nintendo DS version of the video game adaptation of Harry Potter and the Goblet of Fire, there is a minigame called Aparecium Pairs, the goal of which is to rub the DS's bottom screen within a time limit to reveal a card or group of cards matching the one(s) on the top screen.
- Harry Potter and the Chamber of Secrets (First appearance)
- Harry Potter and the Prisoner of Azkaban (Possible appearance)
- Harry Potter and the Prisoner of Azkaban (film) (Possible appearance)
- Harry Potter and the Goblet of Fire (video game)
- Harry Potter Trading Card Game
- Wonderbook: Book of Spells (First identified as Revealing Charm)