Invisible Ink was a type of ink that transfigures anything written in it to become invisible. Text written in invisible ink can be rendered visible again in two ways, either by using a Revealer or the spell Aparecium.
Behind the scenesEdit
- Invisible ink may actually Vanish the text written in it.
- Harry Potter and the Chamber of Secrets (Mentioned only)
- Harry Potter Trading Card Game (First appearance)