The Deserter- a Tale of the Foreign Legion by Wayne Turmel

Algeria 1908.
Gil Vincente is a Boer War veteran, broken and adrift on the rough streets of Marseille. Desperate, he seeks discipline and renewed purpose in the unforgiving ranks of the French Foreign Legion. At first, he finds it, but not for long. When a treacherous soldier frames him for murder, it forces the new legionnaire to run for his life.

Now Gil must fight to clear his name while pursuing the real killer through the rugged Atlas Mountains. With the Legion on his heels and time running out, will he find justice or be forever branded a coward and deserter?