Princess Luminosus Astro. A name forgotten in time. Nobody remembers who that is, or if they even existed. She created what is known as the Nothern Lights, as a gift to her sister. But no matter how much she tried, she couldn't teach her how to use them, and in turn became the Princess of Light. Princess Luminosus disappeared some five hundred years ago, halfway through the banishment of her sister, Princess Luna Astro. The cause of her sudden leave has been forgotten. Princess Celestia Astro was distraught, but continued in ruling Equestria. Now, however, Luminosus has returned. And boy, has she got some explaining to do.