Air Service Boys Over The Enemy's Lines w/ Direct link technology (A Espionage Story)

"They certainly were busy bees, Jack, blowing up munition-works, trying to destroy big railroad bridges so as to cripple traffic with the Allies over here; burning grain elevators in which France and Great Britain had big supplies of wheat stored; and even putting bombs aboard ocean liners that were timed to explode days later, when the boat would be a thousand miles from land."