Fleur Dis Lee here. I have someone to thank for the inspiration of this story. Thank you MiraculousDragonMaster. If you hadn't written Beauty Lies Within, this story wouldn't be here. So my sincerest thanks :). Now let's get this show on the road!
Once Upon a Prologue
7 years after her defeat inside Starlight Glimmer's dream, Daybreaker had secretly been hiding out at the edges of the world. And at the same time Daybreaker escaped from the state of Equestria, one of their princesses, Princess Celestia had mysteriously disappeared. No one knew why she disappeared. But it had permanently scarred her sister, Princess Luna.
During her time near the dangerous edges of the world, Daybreaker had found a magic mirror which had a face hidden in it. She would always ask this mirror who the fairest in the land was. And it would always say she was. Until one day. The mirror said that six girls rivalled her.
They were Sabrina Raincomprix, Popplia (whose hidden identity was Princess Solare, princess and ruler of Solaria and Princess Elise's daughter), Lyra Heartstrings, Mami Tomoe, Starfire and Usagi Tsukino (aka, Sailor Moon). These were the beautiful girls who rivalled Daybreaker.
From that day onwards, she vowed to destroy them. So she gathered Queen Chrysalis's fallen army and was about to attack, when one of the Changeling's advised Daybreaker to wait. So she took his advice. She disguised herself as the beautiful Princess Celestia and went back to Equestria, no one knowing her hidden identity.