The mist lies below all the habitable islands. It is yellowish and gaseous with a scent of sulfur. It rises and and falls along a predictable seasonal cycle. The mist is caustic, causing rapid degradation of metals, and injury to most animals.
Mist exploration has been attempted with magical assistance. These journeys have on occasion returned with exotic metals, plants, and animals, but more often than not, have not returned.
Strange plants and animals live below the mist, and on the mist boundary. Sky whales are often seen diving into the mists, presumably to feed.Sauhaugin live below the mist, but little is known of them beyond their ferocity.