"Harry, your eyesight really is awful."
The title of this article is transcribed from an image. Due to several factors, including poor image quality and difficult-to-read fonts/handwriting, it may have been transcribed incorrectly. If you have a higher quality version of the source image, or a more accurate reading of the text, please visit this article's Talk Page. |
Sum-solving ink was a type of magical ink that presumably helped solve mathematical problems. Luna Lovegood owned a bottle of turquoise sum-solving ink, but someone took it from her and hid it during the 1995–1996 school year, prompting her to post a notice asking for the return of it and several other missing possessions.[1]
Appearances[]
- Harry Potter and the Order of the Phoenix (film) (First mentioned) (Mentioned on a poster)
- Harry Potter Film Wizardry (Mentioned on a poster)