They had now reached the bottom of the ridge, Tom well in advance. The level valley lay before them. But it seemed to Tom, on glancing back, that his chum was staggering under the strain, so he called out:
"Here, what's the matter with my spelling you, Jack. It isn't fair to make you the burden-bearer, when I'm so willing to help. Give me the child, and let me carry her awhile. We'll make better time if you do."
There was more or less force in the suggestion advanced; so Jack thrust little Helene into Tom's waiting arms. She did not hesitate to clasp his neck, even as she had done Jack's, an action which endeared her to Tom, less prompt than Jack to answer to the appeal of childhood.
After this they seemed to make better time, and Jack also had a chance to recover his wind. There could be no doubt about their being pursued, for they could hear loud shouts bursting forth every half minute.
Presumably General von Berthold had by this time realized that his plan with regard to realizing a fortune some day through little Helene and the rich iron deposits on the property that would come to her, were in danger of going astray. Doubtless, also, he had offered an incentive to the soldiers in the shape of a money bonus, in case they recovered the child. Jack imagined he could hear the harsh voice of the commander raised above the tumult from time to time, which would indicate that he himself led the pursuit.
But here at last they were at the place where the smaller road left the main one, and entered the country burial grounds.
How fortunate that they had made all their arrangements beforehand! What if the mending of the leaking reservoir had been left until their return with Helene! Small chance they would have in that case of effecting their escape with the aroused Hun soldiers scouring the country in search of them.
Just then another thing came to pass that caused Jack's heart to feel as though a cold hand had been pressed down on it. From above came a familiar sound, especially to the ear of an aviator. It was the unmistakable buzz of an airplane motor. The sound was growing constantly louder, as though the machine were heading directly toward the chateau.
Of course it was next to impossible for it to be an allied plane; and so Jack must conclude that it bore some courier sent from Hindenburg's headquarters, wherever they might be, with a message of vast importance meant for the general commanding the sector opposing the American advance. Tom and Jack exchanged looks. It seemed as though they were now between the upper and the nether millstones. If they lingered where they were the soldiers were almost certain to come upon them; and should they choose to start their motor and make a successful start into the upper air currents the hostile plane would be ready to challenge them to deadly combat.
But Tom was already beginning to fasten little Helene in a seat alongside his own position. From this Jack understood that his chum's mind was made up, and that half a dozen waiting planes might not daunt him. They would have to take chances one way or another; and by going aloft they might at least be in a position to hold their own.