"I am sure I winged their propeller!" declared Dave, gleefully. "I aimed right at the circle in which the blades travel, and I'm sure I saw splinters from the wooden blades. They're slowing up, too!"

"Sure enough!" cried Harry, peering through the glasses. "You're some shot, Dave. I'll place all my bets on you hereafter!"

"But the other fellow is hot after us!" was Jack's announcement.

"Where are they? And what are they doing?" asked Ned.

"They're coming up fast from the left," said Jack. "I think they're trying to get over us so as to drop a bomb or so."

"I wish we didn't have these two prisoners with us!" Ned said, as he urged the Eagle to her best paces. "It takes a lot of power to keep up at this altitude when we're carrying so much weight."

"We'll make out all right," responded Jack, encouragingly. "We can take them along with us and when get across the French lines we'll just dump them down as prisoners of war and let them be exchanged."

"That would be a pretty good scheme," commented Harry. "The only thing I can see to interfere with it is that fellow on our left."

"He won't be able to do much when Dave gets in his work with the rifle again," cried Jimmie, admiringly. "Dave's the boy!"

"That was a lucky shot, though," protested Dave. "Don't expect every one to do as much execution as that one did."