in prewar times, but lay desolate, with ruined farm buildings, and everywhere the indelible mark of the ruthless hand of the Hun showing what had befallen the border Departments of poor bleeding France.
Finally came the welcome signal that announced the arrival of the last of the air fleet. All was now ready for the start. Every pilot knew what place he was expected to occupy in the formation; and when another flash was seen they took up their positions.
The leader occupied the place of honor. After him came two more planes a little apart. The next pair were even further away from each other, and so it went on to the end. In as far as Jack could make out, the expedition at its start very much resembled the formation seen when a flock of wild geese passes overhead, winging its flight toward the South in the fall or toward Canada in the spring, making a triangle, or spear head, with an old gander at the apex in supreme command.
Later on, as occasion arose, this formation would be changed, the battleplanes surrounding the heavier bombers in order to protect them from any hostile attack.
Far below could be seen occasional lights. These they knew came from some camp of the Huns, where the tired soldiers were sleep-
