Post Greyhawk Wars: 585 CY
The vast stretch of fens and bogs north of the Howling Hills separates Blackmoor from the Wolf Nomads’ lands and those of Iuz. Vast stocks of vile things dwell within these semi-frozen wastes: ice toads, swamp trolls, white dragons, and allegedly, many undead creatures. It is said that fiends in the service of Iuz seek out such undead and bring them within Iuz’s own lands. It is also said that priests of Iuz learn the secrets of controlling malign, freezing fogs here. In these days, there is hardly a surplus of on-the-spot commentators to give reliable information about such matters.