Twilight is the Princess of the Stars, but there's something about them that Celestia neglected to mention. Celestia rules over the ponies, Luna over the batponies, Cadence over the crystal ponies, and Twilight will now discover that her subjects are nothing other than star ponies.
And when one falls into her library, she realizes that her job is a lot harder than she thought.
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** This story was written when I was 16, and the quality and content reflect that. Please be aware that my position on topics contained within may have changed in the time between publishing and now, and I apologize for any offensive material that I may have condoned in my younger years. **