On the east side of the centerspine mountains, the former country of Dessa has been laid to waste by the undead. A lich calling herself Wynne the River of Death is at the center. Wynne is a Warlock of the River King who went missing in our current game, became undead and rose up through the ranks of the Ghul in the Underworld. 

Cogadh, the Divine Dragon of War, holds her City-State of Propygrio, as the last bastion of safety against the undead. Unfortunately, the City State of Grafarvad, demense of Eilifur, is on the other side of the continent, and missionaries have not been able to reach Eilifur. Surely if Eilifur knew of the situation in Propygrio, he would ally with Cogadh and together they could turn the tide against Wynne. 

As a campaign hook, starting in Propygrio would allow for some low-level fighting of undead, a journey across the continent, and then some high-level fighting against undead.