The Malefactor by E Phillips Oppenheim

Tall and burly, with features and skin hardened by exposure to the sun and winds of many climates, he looked like a man ready to face all hardships, equal to any emergency. Already one seemed to see the clothes and habits of civilization falling away from him, the former to be replaced by the stern, unlovely outfit of the war correspondent who plays the game. They crowded round him in the club smoking room, for these were his last few minutes.