"Are you a wizard or not?" The title of this article is conjectural. Although it is based on canonical information, the actual name is conjecture and may be supplanted at any time by additional information released from canonical sources. If this occurs, please move this page to the appropriate title.

Developing solution was a potion that - when used in the developing of photographs - allowed the pictures to move^[1]. It will apparently even work with Muggle film, as the Muggle-born wizard Colin Creevey learned during his first year, much to his delight.

AppearancesEdit

• Harry Potter and the Chamber of Secrets (First mentioned)

Notes and referencesEdit