The Bloody Frontiers

Helpless America had been hurled back into the abysmal dawn of history, by those guerilla bands of the Purple Emperor, which had been loosed in fury and hate to put civilization...

The Masked Invasion

James Christopher is the real name of the legendary Intelligence Service agent designated as Operator #5. Armed with a .45 automatic and a flexible rapier concealed in his belt,...

The Melting Death

It began with the mysterious collapse of a new suspension bridge spanning the Mississippi River. But that was only the beginning. Soon battleships, Army fortifications, coastal...

Invasion of the Yellow Warlords

By land and by sea the ferocious Hordes descend upon the United States, dealing destruction with new and horrifying weapons: with viscid poisons, with lethal gases, with flaming...

Operator #5 V4: The Melting Death

It began with the mysterious collapse of a new suspension bridge spanning the Mississippi River. But that was only the beginning. Soon battleships, Army fortifications, coastal...

Operator #5 V10: The Red Invader

A happy crowd, inspired by the spirit of Christmas, was milling joyously in Times Square, New York. Suddenly, cutting through the sounds of gayety, came a shrill whine. It...

Operator #5 V12: The Army of the Dead

The news spread like wild-fire. A man had solved the problem of the ages — he was bringing the dead back to life! Operator #5, ace of the American Secret Service, recognized...

Operator #5 V13: March of the Flame Marauders

Oil — black gold — the blood of Mother Earth! America had squandered its precious reserves and a syndicate of skilled saboteurs was destroying the remaining store! With all...

Operator #5 V2: The Invisible Empire

Unseen, impregnable, the strange war engine of a foreign power hovered over America, waiting the fatal moment to hurl death upon a thousand cities and towns. Foredoomed to...

Scourge of the Invisible Death

No man could explain that death which struck from the stratosphere, turning men into statues, stripping the United States of defenses. Operator #5 — Ace of the American Secret...

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