For a few seconds MacCreedy was tempted to drive his planes heavenward again and withdraw from the situation, to return another day with a passenger and a shot-gun for his defense. Then he grew angry and obstinate. He had come to explore the summit of Bald Face, and he was not going to be balked by a flock of birds. He was low enough now to satisfy himself that the plateau afforded a good landing, so he dipped his descent to a steeper angle, making haste to get through the suspense.

Immediately the eagles were all about him. To his relief, they seemed afraid to fly directly in front of him, as if apprehending that this monstrous bird of his might carry some terrible weapon in its blunt-faced beak. Mounting swiftly, they passed the descending aeroplane on either side, and then gathered in above it, swooping and yelping. Through the roar of his motor MacCreedy caught the strident shrillness of their cries. He felt that at any moment one might pluck up courage to pounce upon the plane or upon his head. He wondered if his leather cap would be stout enough to resist the clutch of those edged talons which he saw opening and shutting viciously above him. He wished himself safely landed.

He was low enough now to choose his landing-place. He was just about to shut off the engine for the final glide, when one of the female eagles, growing desperate, swooped and struck the right wing of the plane not far from its tip. The extended talons went right through the cloth, tearing a long gash, and, before the bird could recover herself, she was caught by one of the strong wires that braced the wing. The aeroplane rocked under her struggles, but in the next moment she was thrown clear, so badly crumpled that she fell topsy-turvy through the air for some little distance before she could pull her wits together and right herself. Then, dishevelled and cowed, she flew off to one side, with no more stomach left for another assault.

MacCreedy had brought his plane to a level keel, the better to withstand the attack. Now he laughed grimly and resumed his descent. Almost in the same instant he realized that an immense eagle was swooping straight at his head. He ducked—the only way to save his face. The grasping claws sunk deep into his shoulders. With a yell he straightened himself backward violently. His assailant, unable for a moment to free his claws from the tough tweed of the jacket, and swept backward by the rush of the plane, plunged down among the supporting stays, where he struggled and flapped wildly to extricate himself.

Smarting with pain and wrath, and with his heart in his mouth lest the stays should snap and the planes collapse, MacCreedy cut off the power and slid sharply downward. The eagle behind him got free, and flapped off, much daunted by the encounter. The remaining four birds hung immediately over the swiftly dropping plane, but hesitated to attack after the rough experience of their fellows.

MacCreedy touched ground at somewhat higher speed than he had calculated upon, and found the level stone, swept by the storm of ages, so smooth that his wheels ran along it much too easily. Thus he found himself confronted by a new peril. Could he check himself before reaching the brink? He steered a long curve around the edge of the shining pool, gathered his legs under him so that he might jump clear, if necessary, and came to a stop with his vacillating propeller almost peering over the abyss. Just before him was a drop of a cool thousand feet. He sprang out, hauled the machine back a dozen yards or so, and drew the longest breath of relief that had been forced from his lungs since his first ventures in aeroplaning.

Then he snatched the heaviest wrench from his tool kit and turned in a rage to settle accounts with his tormentors. But the eagles were now in a less militant frame of mind. Two of their number had had more than enough, and were already flapping back dejectedly toward their nests. The others seemed to realize that the monster, now that its rider had dismounted, was merely another of the man-creature's tools, such as a boat or a canoe, inanimate and harmless except when its dreaded master chose to animate it. Moreover, now that MacCreedy was out of the machine, erect upon his feet, glaring up at them with masterful eyes, and shouting at them in those human tones which all the wild kindreds find so disconcerting, they were much more afraid of him than before. Their anger began to die away into a mere nervous dread and aversion. It seemed to occur to them that perhaps, after all, the man did not want their nests. He was nowhere near them. They yelped indignantly at him, and flew off to perch on their eyries and brood over the problem.

MacCreedy watched them go, and dropped his weapon back into the kit. Then he went over his precious machine minutely, to assure himself that it had sustained no damage except that slit in one wing, which was not enough to give serious trouble. Then, with a rush of exultation, he ran over to examine the mysterious pool. He found it beautiful enough, in its crystal-clear austerity; but, alas, its utter clearness was all that was needed to shatter its chief mystery. It was deep, indeed, but it was certainly not bottomless, for he could discern its bottom, from one shore or the other, in every part. He contented himself, however, with the thought that there was mystery enough for the most exacting in the mere existence of this deep and brimming tarn on the crest of a granite peak. As far as he could judge from his reading, which was extensive, this smooth flat granite top of Bald Face, with its little pinnacle at one end and its deep transparent tarn in the center, was unlike any other known summit in the world. He was contented with his explorations, and ready now to return and tell about them.

But if content with his explorations, he was far from content on the score of his adventure with the eagles. He felt that it had been rather more of a close call than it appeared; and there was nothing he desired less than an immediate repetition of it. What he dreaded was that the starting of the motor might revive the fears of the great birds in regard to their nests, and bring them once more swooping upon him. He traversed the circuit of the plateau, peering downward anxiously, and at last managed roughly to locate the three nests. They were all on the south and southeast faces of the summit. He decided that he would get off as directly and swiftly as possible, and by way of the northwest front; and by this self-effacing attitude he trusted to convince the touchy birds that he had no wish to trespass upon their domesticity.