It's been a long time since Celestia disappeared. Nobody knew where she went, not even her own sister. Princess Luna has delved into her own sorrow, and Cadence has her own kingdom to run. So where does that leave Twilight?

On the outside, she's the leader of Equestria, and it's always been that way. But really, she's just a lost little filly. So what does she decide to do?

Write letters to her mentor, of course.