After the last battle with Stygian, Starswirl finds himself lost and alone not only in a different dimension, but also in another timeline.

Now he must discover a way to contact the other pillars and more importantly what happened to the Pony of Shadows to ensure at least he has been sent to limbo. But in order to accomplish his objective he must first seek help from the inhabitants of this new world.

Of course he did not count on finding some fellow Equestrian creatures among them. The problem is that one of them might be not so happy to see him again.