Twilight has spent the last two decades fighting against the dark forces which threaten the peaceful kingdom of Equestria. As a Royal Alicorn Princess, she has no choice in the matter. She is the greatest magician Equestria has ever known, but it has all come at a cost, both physically and mentally. She resents her friends for the happy, carefree lives they've been able to lead. Somepony will have to breach her walls of isolation and sorrow before she does something foolish.