Mary Sue's; the most horrible thing in the world of Earth and Equestrian, however, when one attacks Ponyville, the ponies fight; but are losing, so what do they do? Call Fluttershy of course!
One thousand years ago Princess Celestia was forced to banish her sister to the moon. What she didn't know was that Luna had been hiding something very important to her. Now Luna is home but is it to late for her to take the role she always want
She hatched him. She raised him. When Twilight invites her parents to the castle on Mother's Day, she expects to please her mother, and give her a thanks for all she's done. And little does she know... she deserves one too.
Luna has finally come back from her banishment on the moon and reconciles with her sister. After being separated for a millennium, they both rediscover how important family is.
It's the night of the third day following Luna's return. Celestia invites Luna to her room and shares with her little sister how she spent those days during the thousand years she was away, and shows her a room no pony has even seen before.
One day, something terrible and unexpected happens to Celestia, and time is lost to the sands. She'll find that her entire world is gone and that almost everything she knew and loved has disappeared...forever.
After Celestia humiliates her at a dinner, Luna storms off and ends up snooping around in her sister's room. There, she stumbles upon the journal Celestia kept immediately after the banishment of Nightmare Moon.