Cord didn’t feel quite sane any more. He sat there, clutching his bundle of clothes and only vaguely aware of the fact that he was shivering steadily under the cold spray that touched him now and then, while he followed Grandpa’s activities attentively. He decided it would be at least some hours before one of that black set of mouths grew flexible and vigorous enough to dispose of a human being. Under the circumstances, it couldn’t make much difference to the other human beings here; but the moment Grandpa reached for the first of them would also be the moment he finally blew the raft to pieces. The white hunters were cleaner eaters, at any rate; and that was about the extent to which he could still control what was going to happen.
Meanwhile, there was the very faint chance that the weather station’s helicopter might spot them—
Meanwhile also, in a weary and horrified fascination, he kept debating the mystery of what could have produced such a nightmarish change in the rafts. He could guess where they were going by now; there were scattered strings of them stretching back to the Straits or roughly parallel to their own course, and the direction was that of the plankton-swarming pool of the Zlanti Basin, a thousand miles to the north. Given time, even mobile lily pads like the rafts had been could make that trip for the benefit of their seedlings. But nothing in their structure explained the sudden change into alert and capable carnivores.
He watched the rubbery little seal-thing being hauled up to a mouth next. The vines broke its neck; and the mouth took it in up to the shoulders and then went on working patiently at what was still a trifle too large a bite. Meanwhile, there were more thin cat-cries overhead; and a few minutes later, two more sea bugs were trapped almost simultaneously and added to the larder. Grandpa dropped the dead seal-thing and fed himself another bug rider. The second rider left its mount with a sudden hop, sank its teeth viciously into one of the vines that caught it again, and was promptly battered to death against the platform.
Cord felt a resurge of unreasoning hatred against Grandpa. Killing a bug was about equal to cutting a branch from a tree; they had almost no life-awareness. But the rider had aroused his partisanship because of its appearance of intelligent action—and it was in fact closer to the human scale in that feature than to the monstrous life-form that had, mechanically, but quite successfully, trapped both it and the human beings. Then his thoughts had drifted again; and he found himself speculating vaguely on the curious symbiosis in which the nerve systems of two creatures as dissimilar as the bugs and their riders could be linked so closely that they functioned as one organism.
Suddenly an expression of vast and stunned surprise appeared on his face.
Why—now he knew!
Cord stood up hurriedly, shaking with excitement, the whole plan complete in his mind. And a dozen long vines snaked instantly in the direction of his sudden motion, and groped for him, taut and stretching. They couldn’t reach him, but their savagely alert reaction froze Cord briefly where he was. The platform was shuddering under his feet, as if in irritation at his inaccessibility; but it couldn’t be tilted up suddenly here to throw him within the grasp of the vines, as it could around the edges.
Still, it was a warning! Cord sidled gingerly around the cone till he had gained the position he wanted, which was on the forward half of the raft. And then he waited. Waited long minutes, quite motionless, until his heart stopped pounding and the irregular angry shivering of the surface of the raft-thing died away, and the last vine tendril had stopped its blind groping. It might help a lot if, for a second or two after he next started moving, Grandpa wasn’t too aware of his exact whereabouts!
He looked back once to check how far they had gone by now beyond the Straits Head Station. It couldn’t, he decided, be even an hour behind them. Which was close enough, by the most pessimistic count—if everything else worked out all right! He didn’t try to think out in detail what that “everything else” could include, because there were factors that simply couldn’t be calculated in advance. And he had an uneasy feeling that speculating too vividly about them might make him almost incapable of carrying out his plan.
At last, moving carefully, Cord took the knife in his left hand but left the gun holstered. He raised the tightly knotted bundle of clothes slowly over his head, balanced in his right hand. With a long, smooth motion he tossed the bundle back across the cone, almost to the opposite edge of the platform.
It hit with a soggy thump. Almost immediately, the whole far edge of the raft buckled and flapped up to toss the strange object to the reaching vines.
Simultaneously, Cord was racing forward. For a moment, his attempt to divert Grandpa’s attention seemed completely successful—then he was pitched to his knees as the platform came up.
He was within eight feet of the edge. As it slapped down again, he threw himself desperately forward.
An instant later, he was knifing down through cold, clear water, just ahead of the raft, then twisting and coming up again.
The raft was passing over him. Clouds of tiny sea creatures scattered through its dark jungle of feeding roots. Cord jerked back from a broad, wavering streak of glassy greenness, which was a stinger, and felt a burning jolt on his side, which meant he’d been touched lightly by another. He bumped on blindly through the slimy black tangles of hair roots that covered the bottom of the raft; then green half-light passed over him, and he burst up into the central bubble under the cone.
Half-light and foul, hot air. Water slapped around him, dragging him away again—nothing to hang on to here! Then above him, to his right, molded against the interior curve of the cone as if it had grown there from the start, the froglike, man-sized shape of the yellowhead.
The raft rider—
Cord reached up and caught Grandpa’s symbiotic partner and guide by a flabby hind leg, pulled himself half out of the water, and struck twice with the knife, fast while the pale-green eyes were still opening.
He’d thought the yellowhead might need a second or so to detach itself from its host, as the bug riders usually did, before it tried to defend itself. This one merely turned its head; the mouth slashed down and clamped on Cord’s left arm above the elbow. His right hand sank the knife through one staring eye, and the yellowhead jerked away, pulling the knife from his grasp.
Sliding down, he wrapped both hands around the slimy leg and hauled with all his weight. For a moment more, the yellowhead hung on. Then the countless neural extensions that connected it now with the raft came free in a succession of sucking, tearing sounds; and Cord and the yellowhead splashed into the water together.
Black tangle of roots again—and two more electric burns suddenly across his back and legs! Strangling, Cord let go. Below him, for a moment, a body was turning over and over with oddly human motions; then a solid wall of water thrust him up and aside, as something big and white struck the turning body and went on.
Cord broke the surface twelve feet behind the raft. And that would have been that, if Grandpa hadn’t already been slowing down.
After two tries, he floundered back up on the platform and lay there gasping and coughing a while. There were no indications that his presence was resented now. A few vine tips twitched uneasily, as if trying to remember previous functions, when he came limping up presently to make sure his three companions were still breathing; but Cord never noticed that.
They were still breathing; and he knew better than to waste time trying to help them himself. He took Grayan’s heat-gun from its holster. Grandpa had come to a full stop.
Cord hadn’t had time to become completely sane again, or he might have worried now whether Grandpa, violently sundered from his controlling partner, was still capable of motion on his own. Instead, he determined the approximate direction of the Straits Head Station, selected a corresponding spot on the platform, and gave Grandpa a light tap of heat.
Nothing happened immediately. Cord sighed patiently and stepped up the heat a little.
Grandpa shuddered gently. Cord stood up.
Slowly and hesitatingly at first, then with steadfast—though now again brainless—purpose, Grandpa began paddling back toward the Straits Head Station.
Balanced Ecology
The diamondwood tree farm was restless this morning. Ilf Cholm had been aware of it for about an hour but had said nothing to Auris, thinking he might be getting a summer fever or a stomach upset and imagining things, and that Auris would decide they should go back to the house so Ilf’s grandmother could dose him. But the feeling continued to grow, and by now Ilf knew it was the farm.