Who decides what is right or wrong, ethical or immoral, just or unjust? In the world of crime and spy fiction between 1880 and 1920, the boundaries of the law were blurred and justice called into question humanity's moral code. As fictional detectives mutated into spies near the turn of the century, the waning influence of morality on decision-making signaled a shift in behavior from idealistic principles towards a pragmatic outlook taken in the...