He slid out of the roller, wiggled between two of the lace thongs, and then paused, to listen and sniff. What he sought should be found not too far away. Rees rounded one of the protecting rock piers and plunged into the misty, gray-green of the jungle world, his boots sinking inches deep into the powdery earth.

  A ghost-wing fluttered by, its pale, almost completely transparent wings making it seem the shadow of the living creature which no Terran had yet been able to classify either as a bird or an over-large insect. Rees stood statue still to check that flight. And he was rewarded when the ghost-wing settled on a bulbaceous growth swelling a loop of vine about the rough trunk of a thorn-rump.

  That would be on a thorn-rump, Rees thought ruefully, measuring the distance between the ground and the vine by eye and guess. Luckily the tree was old and so there was a goodly stretch of open space between the dark purple thorns. He could climb, though it was a chance he would not ordinarily take. Setting the knife blade between his teeth and thrusting the canteen into the front of his shirt, Rees gingerly took finger hold on the threatening thorns, pulled himself up until he could hook one hand over the vine near that promising swelling.

  Seen this close the growth was not a part of the vine, but a parasite rooted on it, globular, with a fantastic spread of hairlike purple foliage sprouting from its lower end. The ghost-wing emerged from among those waving fronds, fluttering out in panic. Rees made a one hand stab with the knife into the side of the globe. The purple filaments writhed up and about his wrist. But he had braced himself in advance for their scratching and he knew he was immune to the particular poison they dug into his skin.

  Restoring his knife to teeth grip again, Rees now pressed the mouth of the canteen tight to the hole he had made in the globe, boring in with all the strength he could exert. The bulb shrank under that pressure and the purple threads hung limp about an emptied husk, the liquid contents of which now splashed in the canteen. Rees dropped back to the floor of the jungle, a good supply of drinkable water now in hand.

  His return was a backward crawl, for as he went he erased with a branch the marks of his boots. Luckily the powdery soil was easily smoothed. Then he was again in the roller with the eager children. As he let them drink the Terran wondered about the Salarika's immunity. Gordy was safe against jungle virus and the results of most insect bites. But was this small alien also protected by some form of inoculation or mutant control? They would have to chance it that she was.

  She drank thirstily enough and he tried again to talk to her in Basic. Though she watched him with close attention, she did not answer, and he thought that if she did understand his words perhaps she could not speak that common stellar tongue.

  However she allowed Rees to examine her torn hand. The blood had been licked away and the scratch looked clean. When the Terran tried to cover it with a plastic band, she shook her head violently and pulled away, licking at it again with her tongue in a methodical up and down fashion. Rees guessed she was following her own species' way of dealing with such hurts. It was better for him not to interfere, what served one people did not always aid another.

  "Why are we staying here, Rees?" Gordy demanded. "If Mom and Dad are waiting with the 'copter by the mountains I want to go on now!"

  "We can't go until dark," Rees returned, summoning patience. To stay cooped up in the roller for the rest of the day would be hard on Gordy, probably on the Salarika child, too. But they dared not leave its safety. How frank could he be with the boy? Rees' own father had treated him as an adult, but then he had been Survey.

  When his mother had died Rees had been only a little older than Gordy was now, but already the veteran of two prelim settlements on newly discovered planets. And he had continued to accompany his father as a matter of course, that life was a part of Survey training, until, at the age of twelve, he had mustered in at the Academy.

  Specialization in service families had reached the point that children were born into their fathers' and mothers' occupations. That was why the wrench had come as a major break for Rees when Dr. Naper had taken him from the Academy and tried to refit him into the mission pattern of life. He could not subscribe to Uncle Milo's abhorrence of Survey's basic tenets. Just as he could not and would not agree that Survey's opening of new planets only tended to increase the colonial rule of the Empire and perpetuate what Dr. Naper and those of his association considered the most pernicious aspect of Terran galactic expansion.

  But Gordy was of a mission family and relatively far less tough and less prepared for just what had happened today. Was he still young enough to be elastic, or would memory re-hab be his lot if and when they escaped?

  "If we move now the Crocs might find us." Rees tried to explain.

  "You mustn't call them 'Crocs'," Gordy corrected him. "That's a degrade name."

  A degrade name! There it was, mission conditioning. Rees frowned impatiently. He'd like to force the mission high echelon personnel to sit through a tape film of what had happened here three hours ago. Sure, any one with a fraction of good sense did not intentionally degrade any intelligent alien race. But neither was it right to disregard the fact that in dealing with aliens, Terran, or even humanoid standards could not remain the measuring sticks of judgement. On the side of the mission there had been such a determined indoctrination away from normal human wariness in dealing with X-tees that to question any "native" motives was close to a venial sin. Rees supposed that what had just happened here would be explained and excused by those policy makers in a way to satisfy everyone but the dead, the tortured dead.

  "The natives," Rees corrected. "Gordy, this is important—the natives don't like us any more. If they see us—they'll kill."

  "Like what the Patrol officer said on the com?"

  "Just as he said on the com," Rees confirmed.

  "I want Mom and Dad!" Gordy's lower lip protruded stubbornly, now it quivered.

  "Well, they aren't here!" Rees' exasperation grew. He knew that this had been a day of shocks for the boy, but the mere fact that they were still alive meant something. Though, he corrected himself silently, Gordy had no way of recognizing that.

  "Tonight we'll turn on the hopper, head for Wrexul's plantation. Now let me switch on the hummer and you and the Salarika curl up back there and see if you can sleep."

  "Travel at night," Gordy considered the possibilities that offered. "Stay up all night and maybe see an air dragon, Rees?"

  "Truly. But you won't be able to see any air dragon unless you get sleep enough so you can stay awake tonight." Rees accepted the diversion gratefully.

  He spread out two of the blankets on the floor of the storage compartment, gave each of the children another drink, set the small hummer, once used to quiet newly captured animals, to lull them to sleep, pleased that the girl seemed content to follow Gordy's example. Then Rees settled himself down in a corner of the driver's seat, on his knee the recorder which was one remainder from the good life with his father.

  Commander Tait Naper had never been on Ishkur. But he had had training in handling widely varied alien beings. And his private note tapes, left behind when he had taken off on that last voyage, were a rich inheritance for his son. They held distilled experience hints from his successful career. Rees thumbed the button now, though the key words for his own need: jungle, hostiles, escape, and waited for the re-run beam to reach his mind.

  Fifteen minutes later he snapped off the recorder. None of the specific information the beam had planted in his mind was closely applicable to the here and now. But a general idea or two . . .

  "Eye of the spider," he repeated softly aloud. "If you would fight a spider, you must attempt to see through its eyes, think with its mental equipment, foresee its attack as it would make one.

  The spiders in this case were the Crocs and Rees would have to strive to think Croc in order to out-think Croc, a rather confused estimate of the task, but a correct one.

  What did he know about the Crocs, the educated ones at the mission, t
he servile class that did the heavy labor, the guides and hunters with whom he had worked in Vickery's camp? These were three types, reacting in three separate ways. You could tongue-click and clapper Croc speech, the audible speech. But no off-worlder could mind-touch as it was certified that Crocs did with one another.

  Yes, you could learn something of the outward forms of Croc life: the fisherfolk of the sea shore, the hunters of the jungle, the handful of those who had chosen to learn something of off-world education and galactic civilization. But you did not really know what went on in those sloping, reptilian skulls. To use the eye of the spider here—the task was close to impossible. But Survey never accepted the term impossible.

  Rees closed his eyes, tried to evaluate as he had been taught; if he had only had more training! He was in the position of a man ordered to build a Spacer, with a full list of materials to draw upon, and only a beginner's knowledge of engineering. His concentration became close to physical pain as he forced himself to study the problems of getting under a rough, armor plated skin, seeing through the "eye of the spider," trying to foresee the moves of the Crocs against the fugitives.

  Again it was the absence of sound which alerted Rees, as it had when he had awakened hours earlier that morning. The sonic! His hand was already reaching for the proper button on the control panel. Could the roller power unit be failing?

  But as his finger rammed home on the button, that faint vibration began again. No power failure, a turn-off. Gordy! Rees hunched around to peer into the storage compartment behind the driver's seat. But Gordy was there, stretched out full length, short arms and legs flung wide. Gordy was there—the Salarika child was gone!

  How had she known? But then she'd watched Gordy turn the sonic on and off. Why had she gone; after food, water? Rees had fed the children, and the half full canteen was within easy reach. No, the canteen was gone, as was a fish spear which had lain along the back of the storage space—water, a weapon of sorts. Their fugitive from the post must be following some definite course of action. Was she going back, trying to find others of her family? That was far more probable than the idea a child would strike into the jungle for any other reason.

  Rees rubbed his hands across his forehead. She couldn't have been gone very long. The breaking of the sonic had alerted him. How much of a homing instinct had her feline ancestors bequeathed her? Enough to guide her through the miles of jungle to the post? Not that she could make such a journey. The jungle was safe only when traveled by a hunter; any off-worlder must go in a machine equipped with the ingenious multitude of detective and protective devices this one possessed.

  But how could he hunt down a small Salarika who probably was determined against being found, with a thousand good hiding places to hand? There was only one answer, and it was a danger for all of them—the roller must be used. The sense detector in it could be used to nose out any living thing with intelligence above a set quotient. Rees had it connected now as a Croc warning but it could as easily put him on the trail of the Salarika.

  He leaned forward to study the dial. That was set to register at the mark Vickery had put there months previously, reporting on Croc mental radiations, meant to keep track of foot hunters on a drive. What would Salariki thought beams be? Closer to human, Rees guessed. The Crocs were a reptilian species; Salarika were mammals, warm-blooded and off-world. He moved the pointer with infinite care and then his heart beat faster with excitement. A tiny spark of answer. He could use the tracer though that meant hunting with the machine.

  Rees activated the motor, his eyes moving quickly from what lay ahead to the tracer dial. The spark fluttered faster, then settled to a steady dot of fire. He was on course. The path weaved away from the rock pillars, heading on the slight down slope. That was a direct route back for the post. If they only had a common language and he had been able to explain the danger. He could now believe that the cubling was certain she had been virtually kidnapped, taken by force from her own kind. Perhaps, as a female, she had had so little contact with off-worlders of other species that she associated Rees and Gordy with the raiding Crocs!

  Now that the Terran was sure of the direction of her trail he could try something else. Rees set the prowler to hop, cleared a large path of vegetation and settled down in the midst of a stream where water circled about the treads. They were ahead of the fugitive now, instead of trailing. And she would come to them.

  Only she did not. Rees' frown grew. The spark on the dial remained constant. The Salarika was making no move. Had she witnessed their hop, was she remaining hidden to wait out the hunt? Well, he dared not waste the time in such games. This called again for Gordy's aid. Rees snapped off the hummer, reached back to shake the boy awake.

  It required a moment or two to make Gordy understand. And when he did, he stared up the slope where the bush was thick and shook his head dubiously.

  "I don't see, Rees, how we can find her there. There are so many places she can hide."

  "Our noses will have to do it for us." Rees stepped out of the roller, almost knee deep into the water, and then swung Gordy from the machine to the up slope bank. "She's still wearing those perfume bags. Here, sniff this!" He had dosed himself with the inhaling powder which made him sneeze and had an even more violent effect on the boy.

  "That hurts!" Gordy complained, rubbing his nose vigorously with the back of a grimy hand.

  "Only for a minute," Rees assured him. "Take some deep breaths, Gordy." The inhalant had only a temporary effect and it could not be used again for hours. But the perfume of the Salariki clothing should be easy to pick up when their sense of smell was so intensified.

  They started up the slope together, Gordy still rubbing his smarting nose. Suddenly he looked up at his tall companion. "I can smell, lots of things—different things!"

  The sense of smell, so blunted in his species during their evolvement on their own world, was probably not yet as keen as that of an average animal, but it was far more effective than usual. And they were favored because the breeze was towards them—down hill. The wind must pass over wherever their quarry was in hiding.

  "Over here!" Gordy jumped to the right, skidded down on one knee and scrambled up again. Rees moved to join him.

  The boy was right. That scent which had hung about them so heavily in the roller was on the down breeze. They could not be too far away. But there was something else, a reek that was no perfume. Croc! grabbed for Gordy.

  He held the boy fast as he drew a deep questing breath. Salariki and Croc all right. But the Croc stench was old, certainly nothing as strong as the taint left at the mission. An excited Croc had been there, but was no longer lurking nearby. Rees released Gordy but the boy did not move away.

  "I smell . . ." he began and Rees nodded.

  "Yes, but it's old, maybe since yesterday. Come on."

  Rees broke through a stand of bushes, to face a dark hole in the ground. He cried out and threw himself flat, to wriggle forward and look down into a trail trap dug for one of the large beasts the jungle natives considered the best of eating.

  The pit was dark, only a small portion of its covering had broken under the slight weight of the Salarika girl. Rees wondered if she had jumped from above to the seemingly secure surface of this place and her landing had snapped the roofing of the trap.

  She was inside right enough, on her feet, her back against the wall, her forearm streaming blood where the flesh had scraped a upward pointing stake set to impale a captive. Mercifully she had escaped with only that hurt. Her yellow eyes were alight in the dark as she looked up at him, voicing a faint wordless plaint.

  "Gordy!" Rees turned his head as he edged back from that danger section. The Crocs always undermined the edges of such a pit against any escape efforts. His own weight here might bring about another slip which would entrap them all, hold them prisoners for the Croc hunter. Gordy would have to act as his tool now.

  "Is she down there?"

  Rees nodded as he slashed and dug at the roots of
the bushes about the hole. Those were long and tough, pulled up fairly easy when the fastening tendrils were loosened. They would make a rope of sorts and Gordy must do the rest under Rees' direction.

  Chapter 4

  Rees worked fast. With the root lengths freed from the soil, he jerked and tore off the smaller side tendrils until he had a length of reasonably supple line, tough enough to stand the strain of Gordy's weight. He explained carefully to the boy what must be done, made him tie by himself twice over the necessary knots. To Rees' relief, Gordy was an apt pupil, appeared to understand just what he must do and why.

  Then, with one end of the root rope tied about his middle, Gordy crawled out to the break and dropped into the pit. As Rees had feared the saw action of the root cord on the brink of that drop sent another portion of the concealing covering cascading down into the pit below. But Gordy swung free well above the danger of the stakes.

  Rees looped the rope about a sapling, lowered it hand over hand until Gordy hailed that he had reached the bottom. The rope went slack. Gordy was unfastening it. Then there was a jerk, a series of them as the boy knotted it in turn about the Salarika.