Mysterious Egg

This article is not part of the Harry Potter universe.
This article covers a subject that is part of the real world, and thus should not be taken as a part of the Harry Potter universe.

""But what are you going to do with it when it's hatched?" said Hermione."

— quote^[src]

The Mysterious Egg spell card is the fifty-seventh card of the base set of the Harry Potter Trading Card Game.

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