Operator #5, America's Secret Service Ace, appeared in 48 novels in the classic pulp magazine bearing his name. From April 1934 to November 1939, Jimmy Christopher fought villains from inside the United States and invaders from without.rn With World War II looming on the horizon, the Operator #5 novels became a reflection of the times, showcasing American fears of technology and oppression. In The Dawn that Shook the World, Jimmy Christopher leads a band of agents into Europe, battlling a dictator with plans for world dominations (shades of Adolph Hitler!)! One of the bloodiest pulp magazines ever produced, Operator #5 has a well-deserved reputation for thrill-a-minute action and peril. If you like pulp fiction, you'll love Operator #5.