Burning Over the Undersky
The natives refer to it as Erk’grik!ss in the gutteral tongue of the gnolls. Mostly an icy wasteland with little cover in the shadow of the Mountain, the Tundra is seldom visited or traded with.
The few nomadic tribes of humans follow the mammoth, reindeer, and elk herds, moving from isolated copses of ancient trees to mossy rock plains to stubby grasslands as each bears what vegetation it can. They carry all their possessions with them, setting up yurt cities during the brief periods of mating and birthing seasons for the herds.
The gnoll barbarian raiders roam the tundra endlessly, skirmishing among themselves in constantly fluctuating warbands. They very occasionally trade with the humans or the dwarves, but more frequently merely murder and rob them. They are known to take slaves once in a while but it is thought they do this more as husbandry than as labor.
The tundra is merciless and full of dangers beyond the gnolls, which helps to keep their numbers down. Yetis, winter wolves, remorhaz, smilodons, polar bears, even a white dragon or two; all prey on the herds, the people, and each other.
The various tribal peoples of the Tundra have little time for religion; most humans follow an anima system wherein the various animals they rely on have patron spirits that must be placated. Some of the more sophisticated tribes incorporate elements of ancestor worship, probably derived from the beliefs of the dwarven societies of the Mountain. The gnolls have even less use for spirits and such than do the humans, mostly going no further than interpreting omens and occasionally producing a druid or witch-doctor.