My Little Pony: Friendship is Magic - Season 8 Episode 22 -
What Lies Beneath
The students of Twilight's School of Friendship are cramming for "History of Magic in Equestria" exam in the school library when they discover a part of the school that no pony else knows about. When they decide to do some exploring they end up learning much more than they bargained for.
Please explain the problem in a few words.
Max 255 characters.
Max 255 characters.