A plateau located in the north west region of Feyval. An astounding geologic feature, of dark stone that protrudes out of the pale windswept sands surrounding the Black Hills. One of the few features against the dunes, it served as a beacon for caravans crossing the sunny sands between Miln & Treydan. The great brass dragon Ozavur watched over the region; granting travelers protections, and when they pleased him, an occasional boon. Recently; massive dust devils tear the sands into a frenzy around the Thunderhorn, clouding out the sun. Massive thunderstorms rage, and sinkholes swallow caravans with little warning. Where is Ozavur, guardian of the sands? What force causes the region to twist into darkness?