Imprisoned on the moon, the Princess of Eternal Night passed the time in any way she could, usually plotting her revenge.

But when someone else finds their way into her prison, she finds a new way to pass the time, and soon revenge is no longer on top of her list.

She returns to Equestria, but she's not alone, and the Royal Family has a new member.
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A little something I wrote on a forum for a thread called Hogwarts Rejection Letters. As you may infer, it is a crossover with Harry Potter.