From America with Love

Quincy has spent eight years haunting the dusty plains as a vampire hunter, driven by guilt and ghosts he can't outrun.
Beside him rides Chester Crawford, a man dying by inches from a ticking time bomb in his chest. Their bond runs deeper than partnership, deeper than friendship. But in a world this harsh, some truths are too dangerous to speak aloud.
When a white wolf with familiar eyes begins stalking their camp, Quincy's carefully constructed walls begin to crumble.

Some ghosts, it seems, refuse to stay buried.