Everyone knows Princess Celestia, matriarch of the royal family. Just as famous is her sister of the night, Princess Luna. For a thousand years, Luna was banished to the moon, and still, Celestia has a niece and a nephew, Prince Blueblood and Princess Mi Amore “Cadence” Cadenza. Who is this sibling, that is so absent in their childrens' lives?

This is my first MLP:FIM fic, and my first fan fic posted without my trusty editor. Started long before Cadence got real back story, so this is very not canon.