|Written By||Josh Haber||iTunes|
|Directed By||Jayson Thiessen, Jim Miller|
|Storyboard||Emmet Hall, Tony Cliff||Wikia|
|Air Date||November 30th 2013||Transcript|
Twilight and Spike are sent by Celestia to the ruins of her old castle for research, and unknown to each other, the rest of the ponies find their way there as well. Meanwhile, trap doors, secret passages and a dark presence known only as the Shadow Pony await them.