The Treweryn Mountains are an ancient range of volcanic mountains to the west of Fort Ignis. During the Age of Myth, the Lumineth Realm Lords established a commune in the high peaks of the region, seeking the solitude of the mountains for quiet contemplation. With their knowledge and close communion with the land, they quietened the volcanic activity in a small area and built a shrine to honour the gods of the mountains and the wind. Using their magic they created large floating islands of rock to better isolate themselves and commune with the elements. A Realmgate linked them to Hysh and allowed them to return home. The realmgate served as a route into the high peaks of the mountains for hunters and miners, eager to exploit the rich resources of the area. A resource that the citizens of Vorsprangs Bridge consider to be theirs alone.
With the coming of Chaos, the Lumineth abandoned the mortal realms and retreated to Hysh. Before they left the Stonemage and Windmage carved runes into the rocks and cast spells of warding to keep the volcanoes at bay, sure that they would return one day to this place of sanctuary. As the forces of Khurgus Khull rampaged through Aqshy, they followed the passes into the high peaks and found the shrine, but were unable to approach due the spells in place. A Gaunt Summoner heard of the shrine and travelled to the Treweryn Mountains to investigate and corrupt the shrine. After several days of contemplation and spell casting, he finally overcame most of the spells but before he could recover anything of interest the land began to erupt. He abandoned the mountains to their fate, leaving half formed magic’s that held some islands aloft and funnelled lava into strange stalagmites of hot glowing rock. The power in the mountains remains unstable and dangerous to travels until this day.