While it was hoped that the location of the big gun might be spied out, it was almost too much to expect to pick out the spot at the first trial. The Germans were keen and wary, and undoubtedly they would have laid their plans well.
"Well, I don't see any of 'em coming out to dispute our passage," thought Tom, as he looked at his controls and noted by his height gage that he was now up about two miles. "There isn't a Boche plane in sight."
And the same thing was observed by Jack and the other fliers. The Germans seemed to be keeping down, or else were higher up, or perhaps hidden by some cloud bank.
That was another hazard of the air. Going into a cloud, or above it might mean, on coming out, that one would find himself in the midst of enemies.
It is a life full of dangers and surprises. It is this which makes it so appealing to the young and brave.
On and on flew the Allied planes, and the eager eyes of the pilots were alternately directed toward the earth and then ahead of them, and upward to discern the first sight of a Hun machine, if such should venture out.
The fliers were now well over the German lines, and the batteries from below began firing at them. This was to be expected, and Tom,
