An ancient planar rift between the Elemental Chaos and Dracosia caused by a natural weakness in the normally strong barriers that separate Planes. Known as Mithralforge to the Dwarves, this ferrous gateway lies buried in the heart of the Ironside mountains. The first Dracosian inhabitants to encounter the node where Nomadic Dwarves who encountered an army of Genasi warriors guarding it. The Genasi and Dwarves became steadfast allies, forming the original Dwarven capital city called Undermountain together around the node.
In the year 1211, the Genasi lost control of the power of the node, leading to the destruction of the mountain directly above it and a massive tremor felt as far away as Purgus.