Hoppers could remember yesterday only dimly, and instinct took care of tomorrow. But what happened today sped from hopper to hopper and could warn by mind touch both merman and human. If one of the dread snake-devils of the interior was on the hunting trail, the hoppers sped the warning. Their vast curiosity brought them to the fringe of any disturbance, and they passed the reason for it along. Dalgard knew there were a thousand eyes at his service whenever he wanted them. There was little chance of being taken by surprise, no matter how dangerous this journey north might be.
"The city—" He formed the words in his mind even as he spoke them aloud. "How far are we from it?"
The merman hunched his slim shoulders in the shrug of his race. "Three days' travel, maybe five. And it"—though his furred face displayed no readable emotion, the sensation of distaste was plain—"was one of the accursed ones. To such we have not returned since the days of falling fire—"
Dalgard was well acquainted with the ruins which lay not many miles from Homeport. And he knew that that sprawling, devastated metropolis was not taboo to the merman. But this other mysterious settlement he had recently heard of was still shunned by the sea people. Only Sssuri and a few others of youthful years would consider a journey to explore the long-forbidden section their traditions labeled as dangerous land.
The belief that he was about to venture into questionable territory had made Dalgard evasive when he reported his plans to the Elders three days earlier. But since such trips were, by tradition, always thrusts into the unknown, they had not questioned him too much. All in all, Dalgard thought, watching Sssuri flake the firm pink flesh from the fish, he might deem himself lucky and this quest ordained. He went off to hack out armloads of grass and fashion the sleep mats for the sun-warmed ground.
They had eaten and were lounging in content on the soft sand just beyond the curl of the waves when Sssuri lifted his head from his folded arms as if he listened. Like all those of his species, his vestigial ears were hidden deep in his fur and no longer served any real purpose; the mind touch served him in their stead. Dalgard caught his thought, though what had aroused his companion was too rare a thread to trouble his less acute senses.
"Runners in the dark—"
Dalgard frowned. "It is still sun time. What disturbs them?"
To the eye Sssuri was still listening to that which his friend could not hear.
"They come from afar. They are on the move to find new hunting grounds."
Dalgard sat up. To each and every scout from Homeport the unusual was a warning, a signal to alert mind and body. The runners in the night—that furred monkey race of hunters who combed the moonless dark of Astra when most of the higher fauna were asleep—were very distantly related to Sssuri's species, though the gap between them was that between highly civilized man and the jungle ape. The runners were harmless and shy, but they were noted also for clinging stubbornly to one particular district generation after generation. To find such a clan on the move into new territory was to be fronted with a puzzle it might be well to investigate.
"A snake-devil—" he suggested tentatively, forming a mind picture of the vicious reptilian danger which the colonists tried to kill on sight whenever and wherever encountered. His hand went to the knife at his belt. One met with weapons only that hissing hatred motivated by a brainless ferocity which did not know fear.
But Sssuri did not accept that explanation. He was sitting up, facing inland where the thread of valley met the cliff wall. And seeing his absorption, Dalgard asked no distracting questions.
"No, no snake-devil—" after long moments came the answer. He got to his feet, shuffling through the sand in the curious little half dance which betrayed his agitation more strongly than his thoughts had done.
"The hoppers have no news," Dalgard said.
Sssuri gestured impatiently with one outflung hand. "Do the hoppers wander far from their own nest mounds? Somewhere there—" he pointed to the left and north, "there is trouble, bad trouble. Tonight we shall speak with the runners and discover what it may be."
Dalgard glanced about the camp with regret. But he made no protest as he reached for his bow and stripped off its protective casing. With the quiver of heavy-duty arrows slung across his shoulder he was ready to go, following Sssuri inland.
The easy valley path ended less than a quarter of a mile from the sea, and they were fronted by a wall of rock with no other option than to climb. But the westering sun made plain every possible hand and foot hold on its surface.
When they stood at last on the heights and looked ahead, it was across a broken stretch of bare rock with the green of vegetation beckoning from at least a mile beyond. Sssuri hesitated for only a moment or two, his round, almost featureless head turning slowly, until he fixed on a northeasterly course—striking out unerringly as if he could already sight the goal. Dalgard fell in behind, looking over the country with a wary eye. This was just the type of land to harbor flying dragons. And while those pests were small, their lightning-swift attack from above made them foes not to be disregarded. But all the flying things he saw were two moth birds of delicate hues engaging far over the sun-baked rock in one of their graceful winged dances.
They crossed the heights and came to the inland slope, a drop toward the central interior plains of the continent. As they plowed through the high grasses Dalgard knew they were under observation. Hoppers watched them. And once through a break in a line of trees he saw a small herd of duocorns race into the shelter of a wood. The presence of those two-horned creatures, so like the pictures he had seen of Terran horses, was insurance that the snake-devils did not hunt in this district, for the swift-footed duocorns were never found within a day's journey of their archenemies.
Late afternoon faded into the long summer twilight and still Sssuri kept on. As yet they had come across no traces of Those Others. Here were none of the domed farm buildings, the monorail tracks, the other relics one could find about Homeport. This wide-open land could have been always a wilderness, left to the animals of Astra for their own. Dalgard speculated upon that, his busy imagination supplying various reasons for such tract. Then the voiceless communication of his companion provided an explanation.
"This was barrier land."
"What?"
Sssuri turned his head. His round eyes which blinked so seldom stared into Dalgard's as if by the intensity of that gaze he could drive home deeper his point.
"What lies to the north was protected in the days before the falling fire. Even Those"—the distorted mermen symbol for Those Others was sharpened by the very hatred of all Sssuri's kind, which had not paled during the generations since their escape from slavery to Astra's one-time masters—"could not venture into some of their own private places without special leave. It is perhaps true that the city we are seeking is one of those restricted ones and that this wilderness is a boundary for it."
Dalgard's pace slowed. To venture into a section of land which had been used as a barrier to protect some secret of Those Others was a highly risky affair. The first expedition sent out from Homeport after the landing of the Terran refugee ship had been shot down by robot-controlled guns still set against some long-dead invader. Would this territory be so guarded? If so they had better go carefully now—
Sssuri suddenly struck off at an angle, heading not northeast now, but directly north. The brush lands along the foot of the cliffs gave way to open fields, bare except for the grass rippled by the wind. It was not the type of country to attract the night runners, and Dalgard wondered a little. They should discover water, preferably a shallow stream, if they wanted to find what the monkey creatures liked best.