This is the fifth issue in the Dusty Ayres series. These are science-fiction stories of a near-future war that has ravaged America. When Dusty heard about America's new invention, the X-Rayoscope, by which the human eye could penetrate night, fog and clouds for a distance of two hundred miles, he thought victory was at hand. With such a machine to spy on the enemy, the war would soon be over. But he didn't know about the doom even then speeding through invisible skies, had not yet heard of the green thunderbolt!