The Invisible Empire

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 Siege that Brought the Black Death

Pitted against the Mongol land forces, and the Purple Fleet, bombarding from the sea — New York’s embattled army had stood off the long, bitter siege. At last, victory was...

Siege of the Thousand Patriots

Sweeping westward down the Pacific slope, the Purple Emperor’s invading armies thundered to trap the last defending Americans between flaming guns and an ocean grave. Operator...

The Green Death Mists

The mad Emperor, warrior descendant of the ravagers of Asia, unleashed a new, horrible, ingenious weapon against the American people. While Mongols bent over a powerful...

The Army Without a Country

America’s Defenders wavered at the Divide before those trenches of the Purple Empire hordes — checked by a living wall of crucified children! How could they gain victory...

The Coming of the Mongol Hordes

Sweeping through ravaged Pennsylvania, came the blood-maddened Mongol legions — already planning a swift and merciless descent upon helpless New York City! Before them, a...

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 became...

Invasion of the Crimson Death Cult

Mysterious happenings — cloudbursts in the arid desert, churches and skyscrapers horribly destroyed, priests and pastors oddly maddened, Intelligence agents craftily slaughtered...

Raiders of the Red Death

James Christopher is the real name of the legendary Intelligence Service agent designated as Operator #5. The first reports were incredible. Montezuma the Third, Emperor of the...

The Bloody Forty-Five Days

What has become known as the “War and Peace of the Pulps” commenced with the searing novel, Death’s Ragged Army, which appeared in the July, 1936 issue of Operator #5...

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