Luna has retaken her rightful place on the throne of Equestria alongside her sister, Celestia, but while Celestia rules the day, Luna's night brings forth a monster. A monster the likes of which Equestria has never seen. A Beast of Flesh and Metal

Nightmare Moon's greatest and most vile creation returns to take care of unfinished business.

Insanity's release has had devastating effect on Equestria. Without Twilight can the elements stand

Twilight gets a new book containing a terrible secret that could release an unknown deity.