Grim Castle

The Grim Castle is a castle located in Ponyville. It is home to a curious assortment of ponies from the Reflections universe and Mirror-Universe, as well as a supposedly fictional pony.

Residents

 * Headless Horse
 * Mirror-Universe Stygian
 * Mirror-Universe Stygian
 * Mirror-Universe Stygian
 * Mirror-Universe Stygian
 * Mirror-Universe Stygian

Appearances

 * My Little Pony: Magic Princess