My Little Pony: Vriendschap is betoverend - Castle Mane-ia

Seizoen: 4 - Aflevering: 3 / 68 - Eerst uitgezonden: 30 november 2013 - Episode ID: 789234

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.