t last it was motionless. It hung soundless and silent except for a soft roar, a scant thousand feet in the air. And its huge bulk was dwarfing the giant pines, the rounded buildings; it threw the men's familiar surroundings into a new and smaller scale.
He had many times flown over these mountains, and Lieutenant McGuire had seen the silvery domes of the observatories shining among the trees. Like fortresses for aerial defense, he had thought, and the memory returned to him now. What did these new-comers think of them? Had they, too, found them suggestive of forts on the frontier of a world, defenses against invasion from out there? Or did they know them for what they were? Did they wish only to learn the extent of our knowledge, our culture? Were they friendly, perhaps?—half-timid and fearful of what they might find?
A star moved in the sky, a pin-point of light that was plain in its message to the aviator. It was Blake, flying high, volplaning to make contact and learn from the air what this stranger might mean. The light of his plane slanted down in an easy descent; the flyer was gliding in on a long aerial toboggan slide. His motor was throttled; there was only the whistle of torn air on the monoplane's wings. McGuire was with the captain in his mind, and like him he was waiting for whatever the stranger might do.
Other lights were clustered where the one plane had been. The men of the 91st had their orders, and the fingers of the watching, silent man gripped an imaginary stick while he wished with his whole heart that he was up in the air. To be with Blake or the others! His thoughts whipped back to the mysterious stranger: the great shape was in motion: it rose sharply a thousand feet in the air.
he approaching plane showed clear in the moon's light. It swung and banked, and the vibrant song of its engine came down to the men as Blake swept in a great circle about the big ship. He was looking it over, but he began his inspection at a distance, and the orbit of his plane made a tightening spiral as he edged for a closer look. He was still swinging in the monotonous round when the ship made its first forward move.
It leaped in the air: it swept faster and faster. And it was moving with terrific speed as it crashed silently through the path of the tiny plane. And Blake, as he leaned forward on the stick to throw his plane downward in a power dive, could have had a vision, not of a ship of the air, but only of a shining projectile as the great monster shrieked overhead.
McGuire trembled for the safety of those wings as he saw Blake pull his little ship out of the dive and shoot upward to a straight climb.