by Curtis Steele (Author), Emile C. Tepperman (Author), John Newton Howitt (Illustrator)

Against the Mongol hordes on land, and the Purple Fleet, loosing its annihilating bombardment from the sea-New York had fought through the bitter, exhausting siege. Victory, at last, was within the grasp of Operator 5 and his fighting American patriots. Then, from out of the Emperor's devil cauldron, rose the scourge of the Black Plague!