Can you ever truly know somepony, no matter how close they are to you? When a neighboring monarch and friend of Celestia's nears the end, she and her faithful student embark on a journey to seek the aid of those who reside in the lands far beyond Equestrian borders.

Twilight and Celestia only ever wanted to understand what's going on, and to return to their normal lives. But, when they look to solve the greatest riddle ever told, the answers they find... Might not be the ones they seek.