Outlaw's Code — Max Brand

He had an ally, a Robin Hood sort of young man, Lawrence Grey. It was Grey who got the job of locating a dead man deep inside of Mexico. So Grey set off solo on a spirited mare and found for himself not only the dead man (who was very much alive) but also the great adventure of his life!

Max Brand and Evan Evans were two of the pen names used by Frederick Faust, the prolific American author who was killed in combat during WW II. He was a correspondent who found in war a real world of valor and violence not much different from the one he imagined in his hundreds of stories and books.