"Yes. You know these Zeppelins are made in many sections. They say one could keep afloat even if a dozen of these were smashed. They're along similar lines as the watertight compartments of steamships. Some auto tires are made the same way too. But if a bomb was dropped on top of the gas bag, I reckon the explosion would play hob with the whole business."
They stood there and watched the strange duel in the heavens. The thrill of that occasion would never be forgotten by any one of the three scouts. And all the while the guns over beyond the low-lying hills were beating a terrible tattoo that was like the music of the orchestra when a play is being performed. That tragedy was there above them, the stage being the limitless expanse of the heavens.
The Zeppelin maneuvered again and again in order to get in touch with the wasp-like enemies that constantly darted out of reach. There was more or less firing going on, the boys could see, even though the distance and the growl of the German artillery prevented them from hearing any reports.
"There, I believe they've done it!" shouted Merritt suddenly.
"The Zeppelin is running away, that's sure!" echoed Tubby, "and one of the aëroplanes seems to be further up, too!"
"Something has happened, because the rear of the dirigible looks as if it had collapsed," Rob announced. "I wonder how they manage to steer, with the rudder useless. But they're coming down fast now, you notice!"
"And aiming so as to bring the monoplanes over the German lines," added Merritt. "If the little fellows know what's good for them, they'll keep a good distance off, because there are guns made that can shoot straight up for a mile, and send a shell or shrapnel to burst, and fetch an aviator every time."
While they watched, the disabled Zeppelin dropped out of sight back of the woods, and it was easily possible for the boys to hear the wild shouts of derision that ascended from the trenches where the Belgians lay concealed.
The two aëroplanes then started to have a little scout of their own, and doubtless those daring air pilots picked up more or less information that would prove of value to the defenders of the trenches.
"Is the battle over, do you think?" asked Tubby, when this exciting panorama in the upper air currents had come to an end.