“The Zeppelin has put on full steam, I should say, Frank,” admitted Billy.

“Coming to attack us?” chuckled the other, though the motors were humming at such a lively rate that Billy barely caught the words.

“Gee whillikins, I should say not!” he cried exultantly. “Why, they’re on the run, Frank, and going like hot cakes. I bet you that Zeppelin never made faster time since the day it was launched. They act as though they thought we wanted to get above them so as to bombard the big dirigible with bombs.”

“And that’s just what they do fear,” said Frank positively. “That’s the greatest weakness of those big dirigibles, they offer such a wide surface for being hit. While an ordinary shell might pass straight through, and only tear one of the many compartments, let a bomb be dropped from above, and explode on the gas bag, and the chances are the Zeppelin would go to the scrap-heap.”

“They’re dropping down in a hurry!” declared Billy. “There, I can see a great big shed off yonder, and it must be this that the dirigible is aiming to reach. We could, however, bombard the shed as easily, and destroy it together with its contents. Frank, it makes me think of an ostrich trying to hide its head in a little patch of grass or weeds, and because it can’t see anything, believes itself completely hidden.”

“Well, as we haven’t even a gun along with us the Zeppelin is pretty safe from our attack,” remarked Frank. “We’ve proved one thing by coming out to-day.”

“I guess you mean that we’ve given the Germans something to puzzle their wits over, eh, Frank? They know now that no matter what big yarns have been told about the new Yankee seaplane they tried to steal, it’s all true, every single word of it.”

Billy seemed to be quite merry over it. The fact that the dangerous Zeppelin had fled in such wild haste, shunning an encounter, while the vicious little Taube aëroplanes darted about like angry hornets, yet always kept a respectable distance away from the majestic soaring Sea Eagle was enough to make anyone feel satisfied.

“I admit that at first I was kind of shaky about defying the whole lot, but I’ve changed my mind some, Frank,” he called out a minute later. “Yes, the shoe is on the other foot now. They’re afraid of us! Makes a fellow puff out with pride. There’s only one thing I feel sorry about.”

“What might that be?” asked the other.