When Rarity and Applejack are called off to a cave in an unexplored mountain range to solve a friendship problem, they find themselves in a dark and mysterious place filled with inhabitants that seem to be twisted parodies of ponies. It's not long before they're in over their heads, trying to solve a problem that they aren't even sure has a solution. And as more and more secrets about Undertown and its history are revealed, they don’t know if they’ll even be able to escape.
Written for Viper Pit's Hybrid Contest