Many ponies wondered at the Apocalypse. How would it happen? Would anypony survive? How long could you survive during the Apocalypse?

Call it what you like, Apocalypse, Doomsday, Ragnarok, the End of Equestria, it had always been a thing of danger, but also drew ponies with a morbid fascination. Now, though, it is reality. A horrible, frightening reality where only a handful of ponies manage to stay fed. What caused it, though? Why, Twilight Sparkle, the last princess of Equestria, of course!