Everyone knows about Emma Swan. How she was taken to that tree and showed up on the side of a highway with August. How she was brought back by Henry. How she was the one who brought everyone's memories back. Everyone knows Emma Swan. There's another daughter of Snow White and Prince Charming. She was already 25 when Emma came to Storybrooke. Her name is Allison Mills. She's also known for having a thing for a certain waitress who favors the color red. In another world, she's known as Madelyn, the twin sister of Merlin and the maidservant to Crown Prince Arthur Pendragon. Besides being known as a servant to Prince Arthur and having magic like Merlin, Madelyn has a thing for a certain witch who turned evil. When her worlds collide, Allison has to choose. The part of her that is Madelyn forces herself into a game. A game of survival. It's up to Allison to make sure that everyone she cares about survives.