What would happen if the sun shining over Equestria were to die, leaving the world in eternal darkness, where ponies were forced to move underground just to survive? As the days before tragic events hundreds of years ago nearly become legends, a small group of ponies finds themselves with responsibility they didn't expect to ever have to bear. This is an attempt at crossover between My Little Pony: Friendship is Magic and the realities of Arx Fatalis.