Adios Hombre Lobos by Andrew Martin (Emerge #12)

Influenced by the works of John Carpenter, Sam Peckinpah, and Kathryn Bigelow as much as classic werewolf fiction, 'Adios Hombre Lobo' takes place just after the American Civil War and is the story of Union guerillas bound for Mexico with a load of stolen gold. As they prepare to cross the Dead Man's Walk, 60 waterless miles to Mexico, they’re ambushed by a detachment of US Calvary. Is the Calvary after them? Their gold? Or is the Calvary after something much worse than these hardened gunfighters that stalks the Jornada Del Muerto?

Bullets will fly, blood will splatter, and bush whackers will be disemboweled in "Adios Hombre Lobos.”