The Aulesiri Ruin (or simply "the Ruin") was the complete annihilation of the Aulesiri ancestral homeland in the northern continent of Euleshun. It began with a series of volcanic eruptions linked to the Earth's Vein, continued with a dramatic shaking and breaking of the earth in major Aulesiri population centers on the Vein's faultline, and ended with a complete blocking of the sun and conditions not dissimilar to a nuclear winter.
While details of the Ruin are scarce today, it is said that some of the greatest concentrations of Aulesiri chiefdoms and trading cities was on a valley-steppe surrounded by seemingly dormant volcanoes. The eruption of a major volcano led to an unstoppable chain of eruptions and a general change in the region's geographic layout. Hundreds of thousands of people perished in the disaster.