Celestia and luna are the only natural alicorns, or so the ponies of equestria believe. One day Twilight descovers a new book, a finds out the princess having been hiding a small, but very big secret. Twilight decides to search for the secret.
Princess Luna finds herself drawn to the dream of a young filly from an orphan age. The princess see's behond her strange looks and offers to look after her to solve the mystery of her dream