Was it still after him alone, hunting him by some mysterious built-in sense as it had overseas? He could see it now, moving in circles back and forth across the gorge, probably ready to dive on any prey venturing into the open.
Had it not been for the stranger, Dalgard could have taken to the water almost as quickly and easily as his companions. But they could not float the pilot down the stream, thus dissolving the thick coating of gel which was healing his terrible flash burns. And Those Others, were they following the trail of their mechanical hound as they had before?
Dalgard sent out questing tendrils of thought. Nowhere did he encounter the flashes which announced the proximity of Those Others. No, it would appear that they had unleashed the hound to do what damage it could, perhaps to serve them as a marker for a future counterattack. At present it was alone. And he relayed that information to the mermen.
If they could knock out the hound—his hand went to the tender scrape on his own scalp where that box had left its glancing mark—if they could knock out the hound—But how? As accurate marksmen as the mermen were with their spears, he was not sure they could bring down the box. Its sudden darts and dips were too erratic. Then what? Because as long as it bobbed there, he and the stranger were imprisoned in this pocket of the gorge wall.
Dalgard sat down, the bundle of the stranger’s belongings beside him. Then, he carefully unfastened the scorched cloth which formed that bag and examined its contents. There was the belt with its pouches, sheaths, and tool case. And the weapon which the stranger had used to such good effect during their escape from the arena. Dalgard took up the gun. It was light in weight, and it fitted into his hand almost as if it had been molded to his measure.
He aimed at the hovering box, pressed the button as he had seen the other do, with no results. The stun ray, which had acted upon living creatures, could not govern the delicate mechanism in the hound’s interior. Dalgard laid it aside. There were no more of the bombs, nor would they have been effective against such a target. As far as he could see, there was nothing among Raf’s possessions which could help them now.
One of the black shadows in the water moved to shore. The box swooped, death striking at the merman who ran to shelter. A second followed him, eluding the attack of the hound by a matter of inches. Now the box buzzed angrily.
Dalgard, catching their thoughts, hurried to aid them. They undid the knots of the hammock about the helpless stranger, leaving about him only the necessary bandage ties. Now they had a crude net, woven, as Dalgard knew, of undersea fibers strong enough to hold captive plunging monsters a dozen times the size of the box. If they could net it!
He had seen the exploits of the mermen hunters, knew their skill with net and spear. But to scoop a flying thing out of the air was a new problem.
“Not so!” the thought cut across his. “They have used such as this to hunt us before, long ago. We had believed they were all lost. It must be caught and broken, or it will hunt and kill and hunt again, for it does not tire nor can it be beaten from any trail it is set upon. Now—”
“I will do that, for you have the knowledge—” the scout cut in quickly. After his other meeting with the hound he had no liking for the task he had taken on, but there must be bait to draw the box within striking distance.
“Stand upright and move toward those rocks.” The mermen changed position, the net, now with stones in certain loops to weigh it, caught in their three-fingered hands.
Dalgard moved, fighting against hunching his shoulders, against hurrying the pace. He saw the shadow of the flitting death, and flung himself down beside the boulder the mermen had pointed out. Then he rolled over, half surprised not to be struck.
The hound was still in the air but over it now was draped the net, the rocks in its fringes weighing it down in spite of its jerky attempts to rise. In its struggles to be free, it might almost have led the watcher to believe that it had intelligence of a sort. Now the mermen were coming out of the stream, picking up rocks as they advanced. And a hail of stones flew through the air, while others of the sea people sprang to catch the dangling ends of the net and drag the captive to earth.
In the end they smashed it completely, burying the remains under a pile of rocks. Then, retrieving their net, they once more fastened Raf into it and turned downstream, as intent as ever upon reaching the sea. Dalgard wondered whether Those Others would ever discover what had become of their hound. Or had it in some way communicated with its masters, so that now they were aware that it had been destroyed. But he was sure they had nothing more to fear, that the way to the sea was open.
In mid-morning of the second day they came out upon shelving sand and saw before them the waves which promised safety and escape to the mermen. Dalgard sat down in the blue-gray sand beside Raf. The sea people had assured him that the stranger was making a good recovery, that within a matter of hours he could be freed from his cocoon of healing.
Dalgard squinted at the sun sparkling on the waves. Where now? To the north where
