In early 1320 DR Aumvor the Undying collected the greatest of all of the relics and lore of the Netherese Empire and secreted it away in his domain in Endless Caverns. There he awaited the return of the City of Shade. He did not have to wait long for it was but thirty eight years when it appeared. The undying one saw this as his long awaited opportunity to return and bring the Netherse Empire to its full glory.
As quickly as it rose, it also fell, for even Aumvor could not foretell the advent of the second sundering. This change in the weave left him weakened and the nations placed under his yoke, rebelled. By 1487 DR the City of Shade fell and the end of Netheril was not far behind.
From the ashes of an empire two times fallen, Aumvor the Undying plots again to restore Netheril. His ancient portal traps still in operation, he feeds on the living and grows strong again. Who can stop him?