Four Just Men by Edgar Wallace for Windows 8

The four Just Men of the original novel are George Manfred, Leon Gonsalez, and Raymond Poiccart, who recruit a fourth, Thery, in their campaign to punish wrong-doers who are beyond the reach of the law. In later books, Wallace develops their back story. The original fourth man, Merel, had died in Bordeaux, and the remaining three either recruit a fourth ad hoc or operates as a team of three. After The Great War, they are pardoned on condition that they remain within the law, and Poiccart retires to Spain. Gonsalez and Manfred continue to operate a legitimate detective agency.