Fortunately, after the first few feet, he discovered that the tunneled path was less obstructed than he had feared. The thick mat overhead had kept the sun from the ground and killed off all the lesser plants so that it was possible to creep along a fairly open strip. He was conscious of the chitter of insects, but no animals lingered here. Under him the ground grew more moist and the mold was close to mud in consistency. He dared to hope that this meant he was either approaching the river or some garden stream feeding into the larger flood.
Somewhere the squeal of the hunter kept up a steady cry, but, unless the foliage above him was distorting that sound, Dalgard believed that the box was no longer directly above him. Had he in some way thrown it off his trail?
He found his stream, a thread of water, hardly more than a series of scummy pools with the vegetation still meeting almost solidly over it. And it brought him to a wall with a drain through which he was sure he could crawl. Disliking to venture into that cramped darkness, but seeing no other way out, the scout squirmed forward in slime and muck, feeling the rasp of rough stone on his shoulders as he made his worm’s progress into the unknown.
Once he was forced to halt and, in the dark, loosen and pick out stones embedded in the mud bottom narrowing the passage. On the other side of that danger point, he was free to wriggle on. Could the box trace him now? He had no idea of the principle on which it operated; he could only hope.
Then before him he saw the ghostly gray of light and squirmed with renewed vigor—to be faced then by a grille, beyond which was the open world. Once more his knife came into use as he pried and dug at the barrier. He worked for long moments until the grille splashed out into the sluggish current a foot or so below, and then he made ready to lower himself into the same flood.
It was only because he was a trained hunter that he avoided death in that moment. Some instinct made him dodge even as he slipped through, and the hurtling black box did not strike true at the base of his brain but raked along his scalp, tearing the flesh and sending him tumbling unconscious into the brown water.
CHAPTER 14
The Prisoner
Raf was two streets away from the circling box but still able to keep it in sight when its easy glide stopped, and, in a straight line, it swooped toward a roof emitting a shrill, rising whistle. It rose again a few seconds later as if baffled, but it continued to hover at that point, keening forth its warning. The pilot reached the next building, but a street still kept him away from the conical structure above which the box now hung.
Undecided, he stayed where he was. Should he go down to street level and investigate? Before he had quite made up his mind he saw the foremost of the alien scouting party round into the thoroughfare below and move purposefully at the cone tower, weapons to the fore. Judging by their attitude, the box had run to earth there the prey they had been searching for.
But it wasn’t to be so easy. With another eerie howl the machine soared once more and bobbed completely over the cone to the street which must lie beyond it. Raf knew that he could not miss the end of the chase and started on a detour along the roof tops which should bring him to a vantage point. By the time he had made that journey he found himself on a warehouse roof which projected over the edge of the river.
From a point farther downstream a small boat was putting out. Two of the aliens paddled while a third crouched in the bow. A second party was picking its way along the bank some distance away, both groups seemingly heading toward a point a building or two to the left of the one where Raf had taken cover.
He heard the shrilling of the box, saw it bobbing along a line toward the river. But in that direction there was only a mass of green. The end to the weird chase came so suddenly that he was not prepared, and it was over before he caught a good look at the quarry. Something moved down on the river bank and in that same instant the box hurtled earthward as might a spear. It struck, and the creature who had just crawled out—out of the ground as far as Raf could see—toppled into the stream. As the waters closed over the body, the box slued around and came to rest on the bank. The party in the boat sent their small craft flying toward the spot where the crawler had sunk.
One of the paddlers abandoned his post and slipped over the side, diving into the oily water. He made two tries before he was successful and came to the surface with the other in tow. They did not try to heave the unconscious captive into the boat, merely kept the lolling head above water as they turned downstream once more and vanished from Raf’s sight around the end of a pier, while the second party on the bank reclaimed the now quiet box and went off.
But Raf had seen enough to freeze him where he was for a moment. The creature which had popped out of the ground only to be struck by the box and knocked into the river—he would take oath on the fact that it was not one of the furred animals he had seen on the sea island. Surely it had been smooth-skinned, not unlike the aliens in conformation—one of their own kind they had been hunting down, a criminal or a rebel?
Puzzled, the pilot moved along from roof to roof, trying to pick up the trail of the party in the boat, but as far as he could now see, the river was bare. If they had come ashore anywhere along here, they had simply melted into the city. At last he was forced to use the homing beam, and it guided him back across the deserted metropolis to the field.
There was still activity about the globe; they were bringing in the loot from the warehouse, but Lablet and Hobart stood by the flitter. As the pilot came up to them, the captain looked up eagerly.
“What happened?”
Raf sensed that there had been some change during his absence, that Hobart was looking to him for an explanation to make clear happenings here. He told his story of the hunt and its ending, the capture of the stranger. Lablet nodded as he finished.
“That is the reason for this, you may depend upon it, Captain. One of their own people is at the bottom of it.”
“Of what?” Raf wanted to ask, but Soriki did it for him.
Hobart smiled grimly. “We are all traveling back together. Take off in the early morning. For some reason they wanted us out of the globe in a hurry—practically shoved us out half an hour ago.”
Though the Terrans kept a watch on the larger ship as long as the light lasted, the darkness defeated them. They did not see the prisoner being taken aboard. Yet none of them doubted that sometime during the dusky hours it had been done.
It was barely dawn when the globe took off the next day, and Raf brought the flitter up on its trail, heading westward into the sea wind. Below them the land held no signs of life. They swept over the deserted, terraced city that was the gateway to the guarded interior, flew back over the line of sea islands. Raf climbed higher, not caring to go too near the island where the aliens had wrought their terrible vengeance on the trip out. And all four of the Terrans knew relief, though they might not admit it to each other, when once more Soriki was able to establish contact with the distant spacer.
“Turn north, sir?” the pilot suggested. “I could ride her beam in from here—we don’t have to follow them home.” He wanted to do that so badly it was almost a compulsion to make his hand move on the controls. And when Hobart did not answer at once, he was sure that the captain would give that very order, taking them out of the company of those he had never trusted.
But Lablet spoiled that. “We have their word, Captain. That antigrav unit that they showed us last night alone—”
So Hobart shook his head, and they meekly continued on the path set by the globe across the ocean.
As the hours passed Raf’s inner uneasiness grew. For some queer reason which he could not define to himself or explain to anyone else, he was now possessed by an urgency to trail the globe which transcended and then erased his dislike of the aliens.