Rainbow Dash wasn't sure why Princess Luna summoned her to a late-night meeting. To her surprise, Princess Luna offers the young pegasus a job. But is it an offer Rainbow Dash can't refuse?  
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Not related to any other stories I've written.
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Thanks to my editor xyz for helping improve this story.
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The cover art comes from the episode XXX of My Little Pony: Friendship is Magic.
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My Little Pony: Friendship is Magic is owned by Hasbro.