Twilight is visiting her parents in Canterlot when she stumbles upon one of her fathers favorite books, she opens it up to read and a small note drops out of the dusty old tome. She must now confront her father on it's meaning, and hear the story of Orion.
Interesting story. It doesn't feel like it needs a sequel but I'd understand if you wanted to add one. It reminds me a lot of the pilot of Game of Thrones. Anyone with me? Twilight and Trixie's dads being comrades was a good connection.
Just posted the rest of the story. Enjoy.