When one of Fluttershy's dear animal companions wanders into the Everfree, she sets out to bring him home safely - but what she finds at the center of the forest is something she didn't expect, and something that ushers in a change to her world that makes each day darker than the last.

The spirit of madness learned his lesson after those pesky ponies re-sealed him in his stone tomb. This time around there would be no princess Celestia, no elements of harmony, and most important of all, no magic of friendship. His plan was to tear the kingdom apart at the seams, and this time, his scheme was perfect. An infinite jest that was to be the jewel in his chaotic crown. Equestria would be torn asunder and his sweet insanity would rule the land once again until the end of time.