Back and forth-watching it closely made him almost dizzy. What was its purpose? Was it a detection device, to locate him? Raf’s hand went to his stun gun. What effect its rays might have on the box he had no way of knowing, but at that moment he was sorely tempted to try the beam out, with the oscillating machine as his target.
The motion of the floating black thing became less violent, its swoop smoother as if some long-idle motor was now working more as its builders had intended it to perform. The swing made wide circles, graceful glides as the thing explored the air currents.
Searching-it was plainly searching for something. Just as ,plainly it could not be hunting for him, for his presence on that roof would have been uncovered at once. But the machine was-it must be-out of sight of the warriors in the street. How could they keep in touch with it if it located what they sought? Unless it had some built-in signaling device.
Determined to keep it in sight, Raf risked a jump from the parapet of the building where he had taken cover to another roof beyond, running lightly across that as the hound bobbed and twisted, away from its masters, out across the city in pursuit of some mysterious quarry . . . .
The climb which had looked so easy from the street proved to be more difficult when Dalgard actually made it. His hours of swimming in the river, the night of broken rest, had drained his strength more than he had known. He was panting as he flattened himself against the wall, his feet on one of the protruding bands of colored carving, content to rest before reaching for another hold. To all appearances the city about him was empty of life and, except for the certainty of the merpeople that the alien ship and its strange companion had landed here, he would have believed that he was on a fruitless quest.
Grimly, his lower lip caught between his teeth, the scout began to climb once more, the sun hot on his body, drawing sweat to dampen his forehead and his bands. He did not pause again but kept on until he stood on the top of the shortened tower. The roof here was not flat but sloped inward to a cuplike depression, where he could see the outline of a round opening, perhaps a door of sorts. But at that moment he was too winded to do more than rest.
There was a drowsiness in that air. He was tempted to curl up where he sat and turn his rest into the sleep his body craved. It was in that second or so of time when he was beginning to relax, to forget the tenseness which had gripped him since his return to this ill-omened place, that he touched.
Dalgard stiffened as if one of his own poisoned arrows had pricked his skin. Rapport with the merpeople, with the hoppers and the runners, was easy, familiar. But this was no such touch. It was like contacting something which was icy cold, inimical from birth, something which he could never meet on a plain of understanding. He snapped off mind questing at that .instant and huddled where he was, staring up into the blank turquoise of the sky, waiting-for what he did not know. Unless it was for that other mind to follow and ferret out his hiding place, to turn him inside out and wring from him everything he ever knew or hoped to learn.
As time passed in long breaths, and he was not so .invaded, he began to think that while he had been aware of contact, the other had not. And, emboldened, he sent out a tracer. Unconsciously, as the tracer groped, he pivoted his body. It lay-there!
At the second touch he withdrew in the same second, afraid of revelation. But as he returned to probe delicately, ready to flee at the first hint that the other suspected, his belief in temporary safety grew. To his disappointment he could not pierce beyond the outer wall of identity. There was a living creature of a high rate of intelligence, a creature alien to his own thought processes, not too far away. And though his attempts to enter into closer communication grew bolder, he could not crack the barrier which kept them apart. He had long known that contact with the merpeople was on a lower, a far lower, band than they used when among themselves, and that they were only able to “talk” with the colonists because for generations they had exchanged thought symbols with the hoppers and other unlike species. They had been frank in admitting that while Those Others could be aware of their presence through telepathic means, they could not exchange thoughts. So now, his own band, basically strange to this planet, might well go unnoticed by the once dominant race of Astra.
They-or him-or it-were over in that direction, Dalgard was sure of that. He faced northwest and saw for the first time, about a mile away, the swelling of the globe. If the strange flyer reported by the merpeople was beside it, he could not distinguish it from this distance. Yet he was sure the mind he had located was closer to him than that ship.
Then he saw it-a black object rising by stiff jerks into the air as if it were being dragged upward against its inclination. It was too small to be a flyer of any sort. Long ago the colonists had patched together a physical description of Those Others which had assured them that the aliens were close to them in general characteristics and size. No, that couldn’t be carrying a passenger. Then what-or why?
The object swung out in a gradually widening circle. Dalgard held to the walled edge of the roof. Something within him suggested that it would be wiser to seek some less open space, that there was danger in that flying box. He released his hold and went to the trap door. It took only a minute to fit his fingers into round holes and tug. Its stubborn resistance gave, and stale air whooshed out in his face as it opened.
In his battle with the door Dalgard had ignored the box, so he was startled when, with a piercing whistle, almost too high on the scale for his ears to catch, the thing suddenly swooped into a screaming dive, apparently- heading straight for him. Dalgard flung himself through the trap door, luckily landing on one of the steep, curved ramps. He lost his balance and slid down into the dark, trying to brake his descent with his hands, the eerie screech of the box trumpeting in his ears.
There was little light in this section of the cone building, and he was brought up with bruising force against a blank wall two floors below where he had so unceremoniously entered. As he lay in the dark trying to gasp some breath back into his lungs, he could still hear the squeal. Was it summoning? There was no time to be lost in getting away.
On his hands and knees the scout crept along what must have been a short hall until he found a second descending ramp, this one less steep than the first, so that he was able to keep to his feet while using it. And the gloom of the next floor was broken by odd scraps of light which showed through pierced portions of the decorative bands. The door was there, a locking bar across it.
Dalgard did not try to shift that at once, although he laid his hands upon it. If the box was a hound for hunters, had it already drawn its masters to this building? Would he open the door only to be faced by the danger he wished most to avoid? Desperately he tried to probe with the mind touch. But he could not find the alien band. Was that because the hunters could control their minds as they crept up? His kind knew so little of Those Others, and the merpeople’s hatred of their ancient masters was so great that they tended to avoid rather than study them.
The scout’s sixth sense told him that nothing waited outside. But the longer he lingered with that beacon overhead the slimmer his chances would be. He must move and quickly. Sliding back the bar, he opened the door a crack and looked out into a deserted street. There was another doorway to take shelter in some ten feet or so farther along, beyond that an alley wall overhung by a balcony. He marked these refuges and went out to make his first dash to safety.
Nothing stirred, and he sprinted. There came again that piercing shriek to tear his ears as the floating box dived at him. He swerved away from the doorway to dart on under the balcony, sure now that he must keep moving, but under cover so that the black thing could not pounce. If he could find some entrance into the underground ways such as those that ran from the arena- But now he was not even sure in which direction the arena stood, and he dared no longer climb to look over the surrounding territory.