The Queen of the World

Alexandra of Dorion was raised to be Queen.
Not a pretty, nameless ornament on the arm of a king. Not a pawn on the political chessboard, not a peace weaver or hostage in matrimony, but a ruler in her own right. Now it had all gone wrong. Adrift in the wake of her sister's death and the usurpation of her throne; for the first time, Alexandra can choose her own future. She is not short on allies and her former-empire is on precarious footing.
She could reclaim her throne easily, if she wanted... but does she?