Revealer

Revealer
Object information
Usage	Rendering invisible ink visible
Owners	Jae Kim Hermione Granger

"Undaunted, Hermione shoved her hand back into her bag and pulled out what appeared to be a bright red eraser."

— Description

A Revealer is a magical device used to render invisible writing visible. It has the appearance of an ordinary Muggle eraser, although it has a bright red colour.

During the 1988–1989 school year, Jae Kim offered a Revealer to Jacob's sibling after they met serving detention in the Hogwarts kitchens.

Hermione Granger bought a Revealer in Diagon Alley sometime in or prior to the summer of 1992. On 1 February, 1993, upon her first inspection of Tom Riddle's old school diary, she used her Revealer, along with an Aparecium spell to detect any hidden writings.

Behind the scenes

A Revealer, as featured in J. K. Rowling's official site

• A Revealer is featured in J. K. Rowling's official site. It can be used to a reveal a clue to obtain extra content from J. K. Rowling. Its appearance differs slightly from its description in the book, as it is depicted as being similar to a white eraser in the website, though it is possible that there are more than one style of Revealer and it may merely be one not revealed in the books.

Appearances

• Harry Potter and the Chamber of Secrets (First appearance)
• J. K. Rowling's official site
• Harry Potter Trading Card Game
• Harry Potter: Hogwarts Mystery