Lucy looked up again, not trying to answer. The German plane was gone. A quick stir among the little group told her that things were happening swiftly. At that moment the tide of battle turned.

The two enemy biplanes, unwilling to remain beneath the galling fire of the little Nieuports which hung like deadly hornets above them, had made tremendous efforts to rise to a level with their antagonists. But fast as they rose, the lighter planes rose still faster, until a cloud drove in between Allied and German craft, concealing each from the other. Only the Germans were visible to the watchers below. They evidently saw in the momentary check a good chance of escape and sped off swiftly like great birds through the bright morning air toward the safe shelter of the German lines. A perfect hail of fire from the French and American trenches met them as they passed this perilous frontier. Puffs of smoke and balls of red and yellow fire enveloped them, while from behind the drifting cloud the Nieuports darted in pursuit. But the target was beyond the reach of the anti-aircraft gunners. The German planes sailed majestically on, and the little Nieuports, remembering that discretion is a part of valor, forbore to cross into German territory.

“They’re coming back. They’re quite all right, you see!” cried Captain Lewis at Lucy’s side. From the little group a wild cheer went up at sight of the two daring little scouts returning unharmed from a battle which had cost the enemy dearly without the compensation of a glimpse at the Allies’ defenses.

“They are looking for a place to land,” continued Captain Lewis, his glasses pointed again at the sky. “One fellow has a badly riddled wing. There they come—they are going to land on that big meadow just outside the town, inside our lines.”

As he spoke the Nieuports slowly dropped in a long slanting course until in a moment the hospital towers hid them from sight.

Lucy stirred and sighed as though waking from a dream. Her neck and shoulders ached so she could hardly straighten them, and her eyes were almost blinded by long gazing at the sunny sky. She looked around, blinking, at the little crowd of people who seemed, like herself, slowly coming back to earth to take up their tasks again. The street had once more filled with people, chiefly women who had paused with baskets on their arms, oblivious of what they set out to do. Now they moved on with hurried steps as if trying to overtake the time. Lucy suddenly remembered the face that she had seen watching her with such furtive intentness from among the townspeople in the square. The impression, made at a moment when she was too preoccupied to give it any thought, was too strong to be forgotten. Some one’s eyes had been fixed upon her with a piercing earnestness, but beyond that she had seen nothing—no definiteness of face or figure. In the midst of wondering she remembered her father and ran back at once to the hospital.

Colonel Gordon was awake, lying quietly upon his pillows, his lips set and his eyes keen and thoughtful as the crash of the bombardment struck his ears. At sight of Lucy he smiled and held out a welcoming hand, but the searching look did not fade from his eyes, and his thin face wore some of the old confident determination that Lucy so well remembered. For a moment joy at the change in his appearance overwhelmed her, until the look in his eyes deepened to one of painful anxiety as he said, struggling to make himself heard above the guns:

“You must go, Lucy—you can’t stay here. Where is Cousin Henry?”

Eager to relieve his mind, Lucy shouted, “I’m going, Father—soon! Cousin Henry will be back to-night or to-morrow. Major Greyson says he is held up somewhere. Like Mother, you know—she’s on her way here too. I’m going back to England just as soon as he can take me. Anyway, the Germans haven’t got ahead a bit, and the bombardment is letting up—so Captain Lewis says.” She stopped, breathless, wondering if the firing really had slackened, as in her ears the merciless pounding still continued.

Colonel Gordon’s face remained unchanged, and drawing Lucy down to him he kissed her, saying, “Send Major Greyson to me as soon as he can manage it. You are going back now if it is any way possible.”