In the Age of Destiny six brave warriors fought on the side of Nex against the Lich Geb in the epic war. They gave their lives for the survival of Nex, but indirectly caused the Mana Wastes. The descendants survived and were sheltered by the Rift
Things work a little different in Sundown, the alternate Golarion where firearms reign supreme amongst weapons. No longer does the great sword give the warrior the advantage and the largest giant looks over his shoulder for the hiding halfling.