Kiss of Death by Brenda K. Davies

Aisling:
Volunteering to work at the wall wasn’t my life’s goal, but in this new world, the dreams of old are things of the past… especially when I discover I’m part demon.
I embraced my demon side and the freedom it offered—until it led me straight to Hawk. Now I find myself bound to a man I don’t even know. Unfortunately, I don’t have time to process this new development before the horsemen and angels tear my world apart.

Hawk:
It was only supposed to be a quick trip to the wall before returning to the Wilds… but meeting Aisling changed everything.
On the hunt for our enemies, I have no choice but to bring her with me into the Wilds. However, I wasn’t expecting our pursuit to lead us straight into the minotaur’s trap.
Now that we’re the hunted, can we escape its labyrinth and destroy the horsemen, or will we be lost in the maze forever?