When strange black clouds gather over Equestria, it marks the beginning of a dangerous new adventure. Now the Mane Six must travel to a strange, dark realm to save the friends who are being held prisoner there. Will they succeed? Or will the darkness of this world consume all of Equestria?
Based on the original My Little Pony TV Special, "The Rescue from Midnight Castle".
Cover image by the highly-talented Elisto from deviantART: www.elisto.deviantart.com