Around the bend, the hallways got much dirtier, ancient bricks coated with the slime of an ancient past. These tunnels led to the mines of King Sombra, where he had worked his slave army to the bone to harvest iron for his soldiers and gold for himself. There were worse stories of what he had done to ponies in these tunnels, but… they were probably just stories. Dust sure hoped everything they said about ghosts haunting the place were just stories too.