Those lengths of brush and tufts of grass they had used for a screen were strewn about as if tossed in haste. And not too long before....
For the canoe was out in the calm waters within the reef, the paddle blade wielded by its occupant flashing brightly in the sun. On the shingle below, the wolverines prowled back and forth, whining in bewilderment.
"Thorvald——!"
Shann put the full force of his lungs into that hail, hearing the name ring from one of the small peaks at his back. But the man in the boat did not turn his head; there was no change in the speed of that paddle dip.
Shann leaped down the outer slope to the beach, skidding the last few feet, saving himself from going headfirst into the water only by a painful wrench of his body.
"Thorvald!" He tried calling again. But that head, bright under the sun did not turn; there was no answer. Shann tore at his clothes and kicked off his boots.
He did not think of the possibility of lurking sea monsters as he plunged into the water, swam for the canoe edging along the reef, plainly bound for the sea gate to the southwest. Shann was not a powerful swimmer. His first impetus gave him a good start, but after that he had to fight for each foot he gained, and the fear grew in him that the other would reach the reef passage before he could catch up. He wasted no more time trying to hail Thorvald, putting all his breath and energy into the effort of overtaking the craft.
And he almost made it, his hand actually slipping along the log which furnished the balancing outrigger. As his fingers tightened on the slimy wood he looked up, and loosed that hold again in time perhaps to save his life.
For when he ducked to let the water cover his head in an impromptu half dive, Shann carried with him a vivid picture, a picture so astounding that he was a little dazed.
Thorvald had stopped paddling at last, because that paddle had to be put to another use. Had Shann not released his hold on the log and gone under water, that crudely fashioned piece of wood might, have broken his skull. He saw only too clearly the paddle raised in both hands as an ugly weapon, and Thorvald's face, convulsed in a spasm of rage which made it as inhuman as a Throg's.
Sputtering and choking, Shann fought up to the air once more. The paddle was back at the task for which it had been carved, the canoe was underway again, its occupant paying no more attention to what lay behind than if he had successfully disposed of the man in the water. To follow would be only to invite another attack, and Shann might not be so lucky next time. He was not good enough a swimmer to try any tricks such as oversetting the canoe, not when Thorvald was an expert who could easily finish off a fumbling opponent.
Shann swam wearily to shore where the wolverines waited, unable yet to make sense of that attack in the lagoon. What had happened to Thorvald? What motive had led the other to leave Shann and the animals on this island, the island Thorvald had called a starting point in his search for the natives of Warlock? Or had every bit of that tall tale been invented by the Survey officer for some obscure purpose of his own, certainly no sane purpose? Against that logic Shann could only set the carved disk, and he had only Thorvald's word that that had been discovered here.
He dragged himself out of the water on his hands and knees and lay, winded and gasping. Taggi came to lick his face, nuzzle him, making a small, bewildered whimpering. While above, the leather-headed birds called and swooped, fearful and angry for their disturbed nesting place. The Terran retched, coughed up water, and then sat up to look around.
The spread of lagoon was bare. Thorvald must have rounded the south point of land and be very close to the reef passage, perhaps through it by now. Not stopping for his clothes, Shann started up the slope, crawling part of the way on his hands and knees.
He reached the crest again and got to his feet. The sun made an eye-dazzling glitter of the waves. But under the shade of his hands Shann saw the canoe again, beyond the reef, heading on out along the island chain, not back to shore as he had expected. Thorvald was still on the hunt, but for what? A reality which existed, or a dream in his own disturbed brain?
Shann sat down. He was very hungry, for that adventure in the lagoon had sapped his strength. And he was a prisoner along with the wolverines, a prisoner on an island which was half the size of the valley which held the Survey camp. As far as he knew, his only supply of drinkable water was that tank of evil-smelling rain which would be speedily evaporated by a sun such as the one now beating down on him. And between him and the shore was the sea, a sea which harbored such creatures as the fork-tail he had watched die.
Thorvald was still steadily on course, not to the next island in the chain, a small, bare knob, but to the one beyond that. He could have been hurrying to a meeting. Where and with what?
Shann got to his feet, started down to the beach once more, sure now that the officer had no intention of returning, that he was again on his own with only his wits and strength to keep him alive—alive and somehow free of this water-washed prison.
10. A TRAP FOR A TRAPPER
Shann took up the piece of soft chalklike stone he had found and drew another short white mark on the rust-red of a boulder well above tide level. That made three such marks, three days since Thorvald had marooned him. And he was no nearer the shore now than he had been on that first morning! He sat where he was by the boulder, aware that he should be up, trying to climb to the less accessible nests of the sea birds. The prisoners, man and wolverines, had cleaned out all those they had discovered on beach and cliffs. But at the thought of more eggs, Shann's stomach knotted in pain and he began to retch.
There had been no sign of Thorvald since Shann had watched him steer between the two westward islands. And the younger Terran's faint hope that the officer would return had died. On the shore a few feet away lay his own pitiful attempt to solve the problem of escape.
The force ax had vanished with Thorvald, along with all the rest of the meager supplies which had been the officer's original contribution to their joint equipment. Shann had used his knife on brush and small trees, trying to put together some kind of a raft. But he had not been able to discover here any of those vines necessary for binding, and his best efforts had all come to grief when he tried them in a lagoon launching. So far he had achieved no form of raft which would keep him afloat longer than five minutes, let alone support three of them as far as the next island.
Shann pulled listlessly at the framework of his latest try, fully disheartened. He tried not to think of the unescapable fact that the water in the rain tank had sunk to only an inch or so of muddy scum. Last night he had dug in the heart of the interior valley where the rankness of the vegetation was a promise of moisture, to uncover damp clay and then a brackish ooze. Far too little to satisfy both him and the animals.
There were surely fish somewhere in the lagoon. Shann wondered if the raw flesh of sea dwellers could supply the water they needed. But lacking net, line, or hooks, how did one fish? Yesterday, using his stunner, he had brought down a bird, to discover the carcass so rank even the wolverines, never dainty eaters, refused to gnaw it.
The animals prowled the two beaches, and Shann guessed they hunted shell dwellers, for at times they dug energetically in the gravel. Togi was busied in this way now, the sand flowing from under her pumping legs, her claws raking in good earnest.
And it was Togi's excavation which brought Shann a first ray of hope. Her excitement was so marked that he believed she was in quest of some worthwhile game and he moved across to inspect the pit. A patch of brown, which had been skimmed bare by one raking paw, made him shout.
Taggi shambled downslope, going to work beside his mate with an eagerness as open as hers. Shann hovered at the edge of the pit they were rapidly enlarging. The brown patch was larger, disclosing itself as a hump doming up from the gravel. The Terran did not need to run his hands over that rough surface to recognize the nature of the find. This was another shell such as had come floating in after the storm to form the raw material of their canoe.
However, as fast as the wolverines dug, they did not appear to make correspondingly swift headway in uncovering their find as might reasonably be expected. In fact, a witness could guess that the shell was sinking at a pace only a fraction slower than the burrowers were using to free it. Intrigued by that, Shann went back to the waterline, secured one of the lengths he had been trying to weave into his failures, and returned to use it as a makeshift shovel.
Now, with three of them at the digging, the brown hump was uncovered, and Shann pried down around its edge, trying to lever it up and over. To his amazement, his tool was caught and held, nearly jerked from his hands. To his retaliating tug the obstruction below-ground gave way, and the Terran sprawled back, the length of wood coming clear, to show the other end smashed and splintered as if it had been caught between mashing gears.
For the first time he understood that they were dealing not with an empty shell casing buried by drift under this small beach, but with a shell still inhabited by the Warlockian to whom it was a natural covering, and that that inhabitant would fight to continue ownership. A moment's examination of that splintered wood also suggested that the shell's present wearer appeared well able to defend itself.
Shann attempted to call off the wolverines, but they were out of control now, digging frantically to get at this new prey. And he knew that if he pulled them away by force, they were apt to turn those punishing claws and snapping jaws on him.
It was for their protection that he returned to digging, though he no longer tried to pry up the shell. Taggi leaped to the top of that dome, sweeping paws downward to clear its surface, while Togi prowled around its circumference, pausing now and then to send dirt and gravel spattering, but treading warily as might one alert for a sudden attack.
They had the creature almost clear now, though the shell still rested firmly on the ground, and they had no notion of what it might protect. It was smaller, perhaps two thirds the size of the one which Thorvald had fashioned into a seagoing craft. But it could provide them with transportation to the mainland if Shann was able to repeat the feat of turning it into an outrigger canoe.
Taggi joined his mate on the ground and both wolverines padded about the dome, obviously baffled. Now and then they assaulted the shell with a testing paw. Claws raked and did not leave any marks but shallow scratches. They could continue that forever, as far as Shann could see, without solving the problem in the least.
He sat back on his heels and studied the scene in detail. The excavation holding the shelled creature was some three yards above the high-water mark, with a few more feet separating that from the point where lazy waves now washed the finer sand. Shann watched the slow inward slip of those waves with growing interest. Where their combined efforts had failed to win this odd battle, perhaps the sea itself could now be pressed into service.
Shann began his own excavation, a trough to lead from the waterline to the pit occupied by the obstinate shell. Of course the thing living in or under that covering might be only too familiar with salt water. But it had placed its burrow, or hiding place, above the reach of the waves and so might be disconcerted by the sudden appearance of water in its bed. However, the scheme was worth trying, and he went to work doggedly, wishing he could make the wolverines understand so they would help him.
They still prowled about their captive, scrapping at the sand about the shell casing. At least their efforts would keep the half-prisoner occupied and prevent its escape. Shann put another piece of his raft to work as a shovel, throwing up a shower of sand and gravel while sweat dampened his tattered blouse and was salt and sticky on his arms and face.
He finished his trench, one which ran at an angle he hoped would feed water into the pit rapidly once he knocked away the last barrier against the waves. And, splashing out into the green water, he did just that.
His calculations proved correct. Waves lapped, then flowed in a rapidly thickening stream, puddling out about the shell as the wolverines drew back, snarling. Shann lashed his knife fast to a stout length of sapling, so equipping himself with a spear. He stood with it ready in his hand, not knowing just what to expect. And when the answer to his water attack came, the move was so sudden that in spite of his preparation he was caught gaping.
For the shell fairly erupted out of the mess of sand and water. A complete fringe of jointed, clawed brown limbs churned in a forward-and-upward dash. But the water worked to frustrate that charge. For one of the pit walls crumbled, over-balancing the creature so that the fore end of the shell lifted from the ground, the legs clawing wildly at the air.
Shann thrust with the spear, feeling the knife point go home so deeply that he could not pull his improvised weapon free. A limb snapped claws only inches away from his leg as he pushed down on the haft with all his strength. That attack along with the initial upset of balance did the job. The shell flopped over, its rounded hump now embedded in the watery sand of the pit while the frantic struggles of the creature to right itself only buried it the deeper.
The Terran stared down upon a segmented under belly where legs were paired in riblike formation. Shann could locate no head, no good target. But he drew his stunner and beamed at either end of the oval, and then, for good measure, in the middle, hoping in one of those three general blasts to contact the thing's central nervous system. He was not to know which of those shots did the trick, but the frantic wiggling of the legs slowed and finally ended, as a clockwork toy might run down for want of winding—and at last projected, at crooked angles, completely still. The shell creature might not be dead, but it was tamed for now.
Taggi had only been waiting for a good chance to do battle. He grabbed one of those legs, worried it, and then leaped to tear at the under body. Unlike the outer shell, this portion of the creature had no proper armor and the wolverine plunged joyfully into the business of the kill, his mate following suit.
The process of butchery was a bloody, even beastly job, and Shann was shaken before it was complete. But he kept at his labors, determined to have that shell, his one chance of escape from the Island. The wolverines feasted on the greenish-white flesh, but he could not bring himself to sample it, climbing to the heights in search of eggs, and making a happy find of a niche filled with the edible moss-fungi.
By late afternoon he had the shell scooped fairly clean and the wolverines had carried away for burial such portions as they had not been able to consume at their first eating. Meanwhile, the leather-headed birds had grown bold enough to snatch up the fragments he tossed out on the water, struggling for that bounty against feeders arising from the depths of the lagoon.
At the coming of dusk Shann hauled the bloodstained, grisly trophy well up the beach and wedged it among the rocks, determined not to lose his treasure. Then he stripped and washed, first his clothing and then himself, rubbing his hands and arms with sand until his skin was tender. He was still exultant at his luck. The drift would supply him with materials for an outrigger. One more day's work—or maybe two—and he could leave. He wrung out his blouse and gazed toward the distant line of the shore. Once he had his new canoe ready he would try to make the trip back in the early morning while the mists were still on the sea. That should give him cover against any Throg flight.
That night Shann slept in the deep fog of bodily exhaustion. There were no dreams, nothing but an unconsciousness which even a Throg attack could not have pierced. He roused in the morning with an odd feeling of guilt. The water hole he had scooped in the valley yielded him some swallows tasting of earth, but he had almost forgotten the flavor of a purer liquid. Munching on a fistful of moss, he hurried down to the shore, half fearing to find the shell gone, his luck out once again.
Not only was the shell where he had wedged it, but he had done better than he knew when he had left it exposed in the night. Small things scuttled away from it into hiding, and several birds arose—scavengers had been busy lightening his unwelcome task for that morning. And seeing how the clean-up process had gone, Shann had a second inspira
tion.
Pushing the thing down the beach, he sank it in the shallows with several rocks to anchor it. Within a few seconds the shell was invaded by a whole school of spiny-tailed fish, that ate greedily. Leaving his find to their cleansing, Shann went back to prospect the pile of raft material, choosing pieces which could serve for an outrigger frame. He was handicapped as he had been all along by the absence of the vines one could use for lashings. And he had reached the point of considering a drastic sacrifice of his clothing to get the necessary strips when he saw Taggi dragging behind him one of the jointed legs the wolverines had put in storage the day before.
Now and again Taggi laid his prize on the shingle, holding it firmly pinned with his forepaws as he tried to worry loose a section of flesh. But apparently that feat was beyond even his notable teeth, and at length he left it lying there in disgust while he returned to a cache for more palatable fare. Shann went to examine more closely the triple-jointed limb.
The casing was not as hard as horn or shell, he discovered upon testing; it more resembled tough skin laid over bone. With a knife he tried to loosen the skin—a tedious job requiring a great deal of patience, since the tissue tore if pulled away too fast. But with care he acquired a few thongs perhaps a foot long. Using two of these, he made a trial binding of one stick to another, and experimented farther, soaking the whole construction in sea water and then exposing it to the direct rays of the sun.
When he examined his test piece an hour later, the skin thongs had set into place with such success that the one piece of wood might have been firmly glued to the other. Shann shuffled his feet in a little dance of triumph as he went on to the lagoon to inspect the water-logged shell. The scavengers had done well. One scraping, two at the most, would have the whole thing clean and ready to use.