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. 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 Invasion of the Crimson Death Cult, Kasma, a baleful divinity from the wastes of Asia, has laid his blighting curse upon America. All who oppose him come to ghastly ends: amnesia, madness, and screaming, agonizing death-for the cult of Kasma enforces its dread dictates with a new, deadly weapon, unseen, unheard, which razed the mightiest buildings, which lay wide regions barren -- without man or bird or beast! One man, Jimmy Christopher -- known in the Secret Service as Operator #5 - understood the grim purpose behind that crafty plan. And Operator #5, hampered by a superior's short-sightedness, beset on every side by peril and treachery, takes the greatest gamble in his career to keep an army of religion-crazed zealots from delivering America into the bondage of an Asiatic Moloch! 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.