For the first time in thousands of years since Princess Luna established a colony for her Children of the Night, Princess Luna plans to visit them once again. The catch? It's half-way across the galaxy, and it may not be easy to get home.
After an encounter with a group of odd, unnatural interdimensional aliens, Twilight is given a choice by a strange version of Death: enter the minds of various versions of her in the multiverse to fight the invaders, or watch it crumble to dust.