In the centuries after the defeat of Nightmare Moon, Equestria was not the peaceful land we know today. It was a land where the night was ruled by monsters, and the streets ran red with the blood of their victims. In this time, it was the duty of Equestria's hunters to purge and purify in the name of Celestia, and to hold back the monsters until the dawn.

The old monsters are all dead now.

Part of the Borderworld.