A happy crowd, inspired by the spirit of Christmas, was milling joyously in Times Square, New York. Suddenly, cutting through the sounds of gaiety, came a shrill whine. It became louder, and at the very second of midnight a gigantic shell exploded, killing, maiming, and destroying! At 12-hour intervals thereafter - no man knew in advance where - another shell burst devastatingly. Two great powers were openly accused in newspapers. War, savage and bloody, was imminent, and Operator # 5 realized that he had encountered his most cunning foe: the clever woman spy Radi Havara!