Ohh, I didn't know this. I gotta get this now. Where is it set?
"The Kingdoms of Thorn and Bone" series is set in another dimension, though the lost colony of Roanoke was taken there a couple of thousand years before the series begins.
WARNING: SPOILERS in this link: http://en.wikipedia.org/wiki/The_Kingdoms_of_Thorn_and_Bone
Despite the similarity to Alessia's slave revolt, the series is not connected with the Elder Scrolls universe.