The sun comes up. It is dawn. Down in Canterlot Castle a lone white alicorn sits still. Her name, Celestia, is an eternal reminder of her duty. Both of them now. She sighs loudly missing her sister.
Suddenly she shakes her head violently. She clears her mind not wanting to think of the past. But the thoughts come unbidden, and she is swept away in a storm of memories. It is five hundred years ago.