"Anyone hit?"
"I think not, though I believe we accounted for one or two of the enemy."
"Good. Will you fly again tonight?"
"Yes; but not before midnight."
The French officer withdrew.
At this one of the aviators raised a hand and the others gathered about him, Frank and Jack with them. All wore khaki clothing and their features were concealed by heavy goggles.
"Careful," whispered the aviator. "A false move and we are discovered.
Spread out now and see what you can learn. Gather here at midnight."
He waved a hand and the Germans, for such Jack and Frank now knew them to be, separated. When the two lads were alone a moment later, Jack said:
"Well, this is what I call a piece of nervy business. What shall we do?
Inform the French commander immediately?"
"No. I have a better plan that that. They can hardly work any mischief tonight. What information they learn will avail them naught for we can warn the French commander later. We must find out what they are up to. We'll stick close and follow them back to the German lines, if necessary."