Part 3 (1/2)

The other three, who knew of the Irish but vaguely and indefinitely, as a race on the other side of the globe, which, like ourselves, had succeeded in maintaining a precarious and fugitive existence in rebellion against the Mongolian domination of the earth, were listening with interest to my theory that Gerdi's ancestors of several hundred years ago must have been Irish. I explained that Gerdi was an Irish type, evidently a throwback, and that her surname might well have been McMann, or McMahan, and still more anciently ”mac Mathghamhain.” They were interested too in my surmise that ”Gerdi” was the same name as that which had been ”Gerty” or ”Gertrude” in the 20th Century.

In the middle of our discussion, we were startled by an alarm rocket that burst high in the air, far to the north, spreading a pall of red smoke that drifted like a cloud. It was followed by others at scattered points in the northern sky.

”A Han raid!” Bill exclaimed in amazement. ”The first in seven years!”

”Maybe it's just one of their s.h.i.+ps off its course,” I ventured.

”No,” said Wilma in some agitation. ”That would be green rockets. Red means only one thing, Tony. They're sweeping the countryside with their dis beams. Can you see anything, Bill?”

”We had better get under cover,” Gerdi said nervously. ”The four of us are bunched here in the open. For all we know they may be twelve miles up, out of sight, yet looking at us with a projecto'.”

Bill had been sweeping the horizon hastily with his gla.s.s, but apparently saw nothing.

”We had better scatter, at that,” he said finally. ”It's orders, you know. See!” He pointed to the valley.

Here and there a tiny human figure shot for a moment above the foliage of the treetops.

”That's bad,” Wilma commented, as she counted the jumpers. ”No less than fifteen people visible, and all clearly radiating from a central point.

Do they want to give away our location?”

The standard orders covering air raids were that the population was to scatter individually. There should be no grouping, or even pairing, in view of the destructiveness of the disintegrator rays. Experience of generations had proved that if this were done, and everybody remained hidden beneath the tree screens, the Hans would have to sweep mile after mile of territory, foot by foot, to catch more than a small percentage of the community.

Gerdi, however, refused to leave Bill, and Wilma developed an equal obstinacy against quitting my side. I was inexperienced at this sort of thing, she explained, quite ignoring the fact that she was too; she was only thirteen or fourteen years old at the time of the last air raid.

However, since I could not argue her out of it, we leaped together about a quarter of a mile to the right, while Bill and Gerdi disappeared down the hillside among the trees.

Wilma and I both wanted a point of vantage from which we might overlook the valley and the sky to the north, and we found it near the top of the ridge, where, protected from visibility by thick branches, we could look out between the tree trunks, and get a good view of the valley.

No more rockets went up. Except for a few of those warning red clouds, drifting lazily in a blue sky, there was no visible indication of man's past or present existence anywhere in the sky or on the ground.

Then Wilma gripped my arm and pointed. I saw it; away off in the distance; looking like a phantom dirigible airs.h.i.+p, in its coat of low-visibility paint, a bare spectre.

”Seven thousand feet up,” Wilma whispered, crouching close to me.

”Watch.”

The s.h.i.+p was about the same shape as the great dirigibles of the 20th Century that I had seen, but without the suspended control car, engines, propellors, rudders or elevating planes. As it loomed rapidly nearer, I saw that it was wider and somewhat flatter than I had supposed.

Now I could see the repellor rays that held the s.h.i.+p aloft, like searchlight beams faintly visible in the bright daylight (and still faintly visible to the human eye at night). Actually, I had been informed by my instructors, there were two rays; the visible one generated by the s.h.i.+p's apparatus, and directed toward the ground as a beam of ”carrier” impulses; and the true repellor ray, the complement of the other in one sense, induced by the action of the ”carrier” and reacting in a concentrating upward direction from the ma.s.s of the earth, becoming successively electronic, atomic and finally molecular, in its nature, according to various ratios of distance between earth ma.s.s and ”carrier” source, until, in the last a.n.a.lysis, the s.h.i.+p itself actually is supported on an upward rus.h.i.+ng column of air, much like a ball continuously supported on a fountain jet.

The raider neared with incredible speed. Its rays were both slanted astern at a sharp angle, so that it slid forward with tremendous momentum.

The s.h.i.+p was operating two disintegrator rays, though only in a casual, intermittent fas.h.i.+on. But whenever they flashed downward with blinding brilliancy, forest, rocks and ground melted instantaneously into nothing, where they played upon them.

When later I inspected the scars left by these rays I found them some five feet deep and thirty feet wide, the exposed surfaces being lava-like in texture, but of a pale, iridescent, greenish hue.

No systematic use of the rays was made by the s.h.i.+p, however, until it reached a point over the center of the valley--the center of the community's activities. There it came to a sudden stop by shooting its repellor beams sharply forward and easing them back gradually to the vertical, holding the s.h.i.+p floating and motionless. Then the work of destruction began systematically.

Back and forth traveled the destroying rays, ploughing parallel furrows from hillside to hillside. We gasped in dismay, Wilma and I, as time after time we saw it plough through sections where we knew camps or plants were located.

”This is awful,” she moaned, a terrified question in her eyes. ”How could they know the location so exactly, Tony? Did you see? They were never in doubt. They stalled at a predetermined spot--and--and it was exactly the right spot.”