Empire: Country by Tim Goff

The conquest of demon ruled Traag left the Solarian Empire tottering on the brink of collapse. Rebuilding the nation is a nightmare. Worse, the demons are still out there.

Tia came to Cosslet barony in the war’s aftermath searching for an aristocrat willing to marry a wealthy commoner. What she finds is an impoverished backwater stalked by a horrific abomination and a baron about to lose his position. Then matters get really bad…