Shadow World by Quinn Blackbird

A dark fae warrior, a beast of cruelty and brutality.
A dark-minded human survivor, taken as prisoner.
And too many cold, quiet moments in the blackness.
A lone, brutal fae warrior and a lost, wounded human … and desires so forbidden they must be fought.

The end of the road is in sight. I have walked it unwillingly with the dark fae warrior who has kept me prisoner.
But Cliff’s resolve is wavering.
And mine has completely shattered.
I invite my captor into more than my body in our heated, furious shared moments. I invite him into my bleak, twisted soul. He judges me none where so many others have judged me plenty.
Cliff savours my darkness.
Worst of all, he still keeps me bound to him by rope, he still drags my aching body across France to meet with the rest of the army, and he promises above all that once we join with his people, I will become nothing to him.
I plan to become nothing to the world.
Before we reach his unit, I will die by his hand or my own.