The World's Edge Mountains are the great spine of the Old World: a titanic range of snow-capped peaks and bottomless chasms running north to south for thousands of miles along the eastern edge of the civilised lands, dividing the Empire and its neighbours from the endless Dark Lands and steppes beyond.
This is the ancestral realm of the dwarfs. For untold ages the Mountain Holds have been carved into the roots of these peaks, their halls and mine-shafts delving miles beneath the stone — and chief among them stands Karaz-a-Karak, the Everpeak, seat of the High King. In their golden age the dwarf realm ran unbroken beneath the entire range, linked by the Underway, until the earthquakes and greenskin tides of the Time of Woes broke it into the scattered holds that endure today. Every ruined hold and lost mine is a grudge inscribed in the Great Book of Grudges.
The mountains are no safe road. Orc and goblin tribes infest the high passes and the deep places, trolls lair in the crags, and skaven gnaw at the foundations of the world. Black Fire Pass, where Sigmar and the dwarfs broke the greenskins, cuts through the range's southern reaches, and its passes have seen desperate battles beyond counting. To live in their shadow is to live always within reach of the dark beneath the peaks.