Twilight Sparkle is a mare of legend. Time and again, she has faced impossible threats, and with the help of her friends, she has always triumphed. Nightmare Moon, Discord, Sombra, Sunset Shimmer, and now Tirek have tried and failed to best her, and each trial has only made her stronger still.
But what of the oldest princesses? Luna and Celestia may be old beyond imagining, and they've seen things that would drive lesser beings mad. Before that, though, they are sisters. Sisters fight. Sisters get angry with each other.
Sisters forgive.
This is an experiment. Stories can be written without dialogue, to be sure, but can a story be told with nothing else? One chapter, no tags, nothing but two sisters talking.