At least some content in this article is derived from information featured in Harry Potter: Hogwarts Mystery. Spoilers will be present within the article.
|"I show not your face but your heart's desire."|
During the 1985-1986 school year, Skye Parkin, Murphy McNully, Orion Amari and Jacob's sibling researched this spell while puzzling over Skye's missing Comet 220 broomstick that she had wanted to give to Jacob's sibling for the second match of the Inter-House Quidditch Cup. Their attempt at the spell went wrong as Skye transfigured the Goldfinch into an actual Snitch-sized comet that rocketed about the Transfiguration Classroom 1B before Professor McGonagall reprimanded them and sent them to the Headmaster's office. 
During the 1988–1989 school year, Professor Minerva McGonagall taught her fifth year Transfiguration students how to perform this spell, in preparation for their O.W.L.s that academic year, at Hogwarts School of Witchcraft and Wizardry.
- Harry Potter: Hogwarts Mystery (First appearance)
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