The Andre Norton Megapack - 15 Classic Novels and Short Stories

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 hands. 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