Vegas Run - Rachel A. Brune

Some debts you can't outrun.

An unprovoked attack destroys Rick Keller's refuge and sends him back to civilization. Adrift, alone, his past reaches out to him as the agency he escaped--and the old Soviet spook he almost didn't--call in their debts. His choice: work with MONIKER one more time, or face the rest of his life on the run.

From the snows of the north to the sand of the Las Vegas strip, Rick finds himself enmeshed in a web of old alliances and new, as his team heads out on the trail of the latest development in the supernatural arms race. While Rick has been hiding in the north country, MONIKER has been building a supernatural army. No matter how fast or far he runs, it won't be enough. This time when they call him in, they don't need an agent--they're eliminating the competition. 

This time, he's going to burn them to the ground.