Though I've yet to find out where they came from precisely, as I understand it, the undead wiped out Ellethia first and foremost - their terrible introduction to the people of this world, if you like. I wish I knew more about what happened here.

[ Hence the incessant digging around. ]

I have my suspicions that the undead lieges that rode into Taravast those months ago were among them, but that's purely speculation. I wish there was a way to know what really happened here.