Military action
During this battle Ezmyre gathered the Dragonborn and the Titanium Dwarves and formed an army to lay siege to Sedas. There was a bloody war in which Sedas fell. During the battle, two princesses left off a precipice into a magical hole, sacrificing themselves to start the 15th-level spell of Reality Shatter. While it was believed that the Sedashan people were wiped out in the battle, Old Jass suspected that perhaps they had escaped to another reality. It was the Knights of the Golden Order who uncovered the truth, that they had escaped and sacrificed this reality to trap Tiamat and kill her once and for all. Tiamat had chased the Sedashan people to this world from another world called Equinox.