The Reluctant Tracker  (English, Paperback, Callis Robert W)

Far from his home in Kemmerer, Wyoming, Kit Andrews is in unfamiliar territory in Montana. Alone, on vacation, he is forced to work as a tracker for a Mexican cartel to help them track and find a rogue cartel member who got caught by police, offered to testify against the cartel, and then escaped from the police. The rogue cartel man has entered Glacier National Park, headed for the Canadian border. Alone in some f the wildest territory in the United States with four Mexican cartel men, Kit must find a way to satisfy his captors and manage to stay alive.