Celestia and Luna were born as earth pony foals in a dangerous world. They must rise from nothing to become the princess we know, upsetting chiefs, gods, and the very forces of nature in the balance.
Left only with a promise to keep in touch, Rainbow Dash struggles to convey her feelings, and to figure out what the words were that she couldn't say on that one last misty night at the train station before Twilight left.
When an incredible revelation sends Rainbow Dash's life into a tailspin, she finds herself at the mercy of emotions she never thought she had, faced with hard questions and impossible choices.