"Not so. They have only viewed the carvings. But could it be"-it might be blasphemy to send that thought-"some far kin to the Great Ones have returned after these tens of tens of seasons?"

Yinko did not immediately reply, but when he mind touched again, it was an order.

"Keep watch, report if they do more than look. We shall come."

Red Fur was on the ground leaning against a rock. His companion reentered the beetle. The Guardian studied that carrier as much as his angle of sight allowed.

It was well known that the Great Ones had had servants not of their own species. Once, before they had left, they had chosen to instruct the People in many strange things. For a while after they had left, the People still controlled things of metal which could eat out new caves and make life easier in many ways.

In time, those had died, though some were kept in memory of those days.

The second intruder was returning with a container he placed on the ground by Red Fur. He pushed something into the mouth of the younger one who then drank from the container. But he still sat with his head supported by his hands, hunched in upon himself.

The Guardian was bemused. It was evident that Red Fur's plight had been brought about by the attempt at mind touch. So-these could not be any far kin of the Great Ones. They had been masters at such contact.

Thus the People had a defense without having to descend to claw and tooth. If his mild attempt had so brought down Red Fur, what would an all-out thrust by the Elders do? He relaxed as curiosity overcame wariness. What did the beetle riders want here? They had appeared greatly excited by the wall paintings, one of the last rock messages remaining. But it was not those faded carvings which had stationed Guardians here so long.

Those only pointed the way to what the Great Ones had put in keeping for a return which had never come. They had stored secrets beyond secrets. This was the outer sh.e.l.l of a storehouse and the warning had been impressed upon the People that only the Great Ones should ever seek its inner heart.

"-sun-"

Galan, Histechneer, Second Cla.s.s, steadied his head with both hands and somehow managed to answer Narco. "Not sun-" With an effort he raised his head. His sight was misted at first, but after a fewmoments he could see the anxiety in the other's face.

Galan drew a deep breath and tried to make sense of what had happened-not only for Narco but for himself. There was no reasonable explanation.

"In my head-something-from outside-"

Narco sat back on his heels. "An attack? But what- how?" He continued to survey the younger man closely. "All right-the old rule holds-to each world its powers and secrets. A mental invasion?" He slewed around to look at the wall. "A protection? But this is very old. Could any security device last so long?"

Not waiting for an answer, he went back to the crawler and returned wearing a shock helmet and carrying a second one for Galan.

The eye screen cut out some of the punishing rays of the sun. Wearing it did give a sense of security though Galan still felt shaky.

Narco had gone to stand before the wall at midpoint, his eyes sweeping from right to left and back again.

Perhaps it did conceal some secret, but the pictures were plainly meant to represent a journey. Only nowhere else during trips out from the survey camp had they found any indication of such a civilization as these pictures suggested.

There were a number of platforms apparently hovering above the ground unsupported in any way, each carrying heaped-up cargo. Scattered among these floating platforms were people: humanoids.

To have carved and painted this wall would have taken a long time, yet in their own sweeps of exploration they had not found any trace of settlement on this world. Of course the Zacathan head of their expedition might have information he had not yet shared.

"Who-what were they?" Galan staggered up.

Narco shrugged. "Guess. It always comes in the end to guessing. But this is a major find-will surprise some people." He grinned.

That was true. There had been grumbling in the camp lately, though Galan was sure no one yet had said they were wasting time-at least not when the Zacathan was within hearing distance.

Narco retrieved the recorder and was reciting into it a careful description of each section of the wall.

Yes, the time-blurred figures in that Procession were certainly humanoid. They walked erect. Unlike the floating platforms, they needed the support of the ground beneath their feet.

But no matter how hard he tried, Galan could not clearly distinguish any features. Their elaborate headdresses were as secretive as masks.

As Narco went to signal their find to base camp, Galan began to pace along the line of carvings. He noted now that the parade was led by a single figure several lengths ahead of the rest. All of them were wearing tight-fitting garments, each having a belt from which dangled a number of unidentifiable objects, The leader, however, carried a round ball breast high, resting on the palms of both hands. And that ball appeared to be of some substance not native to the cliff, dark gray in color.

The Procession ended just before a fault in the cliff wall itself. Instead of a smooth surface, there was afissure, triangular in shape, one angle pointing skyward. This was packed tightly with rubble, thoroughly corked.

Tomb? Treasure chamber? Temple? Galan approached that matting of stones cautiously. There had always been a pattern in Forerunner finds on other worlds. Those had varied from the remains of cities to what might only have been temporary encampments. And there were many different races, so these finds had varied to a striking degree.

If something did lie behind that packing of rubble- Every seeker of the past longed to make the GREAT discovery. The Forerunners had spread through the galaxy, ruled a mighty stellar empire, only to vanish in a sea of time where his own people could not hope to venture beyond the shallows.

Stepping back several feet, he continued to survey that triangular ma.s.s from bottom to top. But, as Galan's glance reached the tip, he stiffened. Crowning that point very near the lip of the canyon was- A carving? But one far more clear-etched,-it could have been finished this very day. A head! But not that of any humanoid. The features were almost hidden in a full bearding of red-gold hair or fur. While the broad nose and jaw appeared to resemble a beast's muzzle, the eyes were very large and a startling green, making one think of sun-touched gems.

Galan could not remember sighting that image during their previous close study. Suddenly, there was a grating sound and, from a point not far below that head, a detached stone fell. Galan's hand went to the stunner at his belt.

As his fingers closed on the weapon, they seemed to freeze in a rock-hard position. He struggled to call Narco, only to discover that he was not only held by invisible bonds but also unable to speak.

The green eyes continued to study him impa.s.sively for a long moment and then the head withdrew, leaving a dark hole behind. As it disappeared, he found himself free of the strange paralysis that had gripped him.

"Narco!" He felt he dared not turn his back on that hole, and his stunner was out and ready.

"What?" His companion stopped short when he saw the weapon.

"Up there-" Galan used the stunner to indicate the hole as he told what he had seen and how he had been helpless when he thought of trying to defend himself.

Yinko slipped back to where the Guardian and his own escort of scouts waited.

"Weapons they do carry, but against the Power those can not act. They are certainly not of this world."

He paused and looked to the Guardian. "Since touch sent one into helplessness, it may be necessary for us to unite and open their minds, to discover what they would do here."

What he suggested was against the First Law and they all knew it. But there was also the oath by which the People had been bound. That which they guarded must not fall into the hands of invaders.

"Upon me," Yinko continued, "the debt of such an action shall fall."

Yinko's words were interrupted by an odd sound which none had ever heard before, a sound that seemed to come from out of the air. A "thing" crossed the pale green of the sky. Not a spas-infinitely larger and moving without any bending of wings.

Instinctively, the party on the cliff flattened themselves down on the rock. The sky thing coasted alongabove the canyon to where it widened at the northern end. There, the object dropped until it settled near the beetle and sand sprayed out.

As had happened with the beetle, a side opening appeared and more invaders disembarked. However, these did not resemble those from the beetle. The first was humanoid, the body covered with a form-fitting garment not unlike the hue of the rocks. A tight black cap covered all but the hu-manoid's facial features. High on its shoulders the newcomer wore a bag; from this projected a second head, much smaller and furred.

This first comer moved a short distance away, in a manner which suggested wariness to the watchers above though there was no weapon to be seen. Another figure emerged from the flyer. This one was taller and not of the same species, for all its visible skin was scaled. The hairless head was backed by a fan of skin which rose like a bristling mane, the forepart lying about throat and breast like a collar.

There was an added oddity to this stranger. The left arm was shorter, ending in a hand far too small for the size of the rest of the body, and the appendage on the right was hardly larger.

The scaled one raised that stub of a right hand and started to join the earlier invaders. However, his companion swung around suddenly, as if his body must shield the other from the carved wall, while he also signaled.

Black Cap faced the cliff squarely while the creature he carried in the backpack rested its chin on his shoulder to stare at the carved wall.

On his way to join the newcomers, Galan halted also- half expecting to see a furred head appear aloft.

Naturally, the Histechneer Zurzal had come at the first report of their find. Ranking very high among the Zacathans, he had supplied the backing to a.s.semble this expedition. This planet, for some reason of his own, had been his first choice for investigation.

Black Cap was a Shadow, a professional guard, the Zac-athan's constant companion, formally oathed to his service. It was well known that Zurzal was on the Black List of the Thieves Guild, having ruined one of their long prepared missions, and it was well he did travel with one of the formidable Shadows.

The small creature was a Jat. No one had ever been able to discover their full intelligence. However, when one bonded with a human it supplied an ever-present awareness of trouble-an alarm system of flesh, blood, and bone.

His guard's warning had halted the Zacathan. He folded his long legs in a sitting position facing the wall.

The Jat, freeing itself from the bag, dropped to join him. But the guard remained standing, positioning himself so he could view both his employer and the cliff.

With the arrival of Zurzal, authority pa.s.sed to him. Galan's hand went to the strap of his helmet, half expecting another bolt to strike at any moment. It did, but this time the thrust did not find him defenseless.

The pain and disorientation were less, heard through the helmet's warning signal.

Blinking his eyes, he saw that the Shadow had wavered a step or two from his position but otherwise did not seem much affected by the attack. The Jat and the Zacathan showed no signs of discomfort.

Jofre, Oathed Shadow, swallowed and swallowed again. As much as he had been trained in the inner Power, he had had to meet that pressure with full strength, which aroused the fear of deep brainwash, a rumored weapon of the Guild. Zurzal continued to stare at the carvings, seemingly at ease. Yan, the Jat, had laid a hand-paw on one of the Zacathan's mutilated arms as if in protection.'The scaled one," Yinko thought-linked. "That one has power-as does the small, furred thing. Not our power, but like to it."

"Great Ones?" The question expressed doubt. These were too alien to People memory.

"Like-unlike," Yinko shook his maned head. "But I doubt we can control these." Once more he looked down at the three who seemed to be waiting-perhaps hoping to discover what defenses the People had.

"We wait," Yinko decided.

Time no longer had any meaning; neither party made a move. At last, the two from the beetle joined the others.

Galan saluted. "There is-" He paused, wanting to explain with care. "It must be some security device.

But where? We have not been here long enough for a full search." He glanced at that dull globe carried by the leader of the procession.

"Mind touch," the Zacathan returned calmly. "Hit you hard, did it?" He indicated the helmet.

"But-how? It's all just stone and paint!" He had heard of mind touch, mind speech. However, as far as he knew, he had never encountered it before. That had not been a touch but a stab, one he felt had been delivered with intended malice.

"That is what we see, yes," Zurzal nodded at the wall. "But no, there is no instrument set on guard here.

Only living minds can reach so."

"What is to be done?" Narco joined them.

"It lies with who or what watches here." The Zacathan was scratching behind the Jat's large ears. "Wait for a s.p.a.ce-"

But time was against them, for again the whine of a flitter echoed arrogantly from the heights. A flitter?

But the only one known here was just behind them.

This was larger, and Jofre, well trained, caught sight of those threatening tubes pointing fore and aft. It was armed! And there was no Patrol Star to be seen on the dirty brown of the cabin side. That paint was meant to fade against the mountain lands and desert around them.

The warning came from the Zacathan. "Down-! This is-"

His hissed speech was drowned out by a roaring voice from above.

"Halt! Stand! See and fear!"

A lash of fire flicked out of one of the fore tubes, striking the cliff face. The tip crossed the rubble in the triangle to touch the globe carried by the leader of the procession.

Galan reeled, saw Narco fall, curling up like an insect touched by flame. The Shadow was on his knees, his head shaking from side to side. The Jat plastered itself tightly against the Zacathan's body, its mouth open as if it were screaming, though Galan could not hear through the roaring that filled his head.

Where that flash had fallen was dark-black-as if the very substance of the rock had been consumed.

But the globe was alive-vivid ripples of blue, purple, and green were circling out from it. Galan foundhimself unable to raise his hands to push the helmet closer over his tortured ears. He was locked in place and unable to turn his head.

And now- There was other movements beside those ripples. Not among the party in the canyon. Nor had anyone descended from the rogue flitter. Long, fiattish bodies, the same color as the rocks, were slipping down from the crown of the cliff, hard to see except by their movement.

They avoided the curling streamers of color given forth by the globe, coming to ground to crouch in a defensive line before the Procession.

The black spots were spreading outward in patches as if the entrances to a number of caves were being revealed. In spite of his streaming eyes and painfully roaring head, Galan could not look away. Was this indeed the opening of some treasure-house?

There was a second ray from the enemy flitter-aimed now at that furred line waiting in what seemed to be a pitiful gesture of defense. The thrust did not touch, rather it turned in midair, flashing back toward its source.

The Zacathan and the Jat did not move, only stared ahead. Now the Shadow had crawled to them and raised a hand, though no weapon, so he also might grasp one of the mutilated arms Zurzal held out to him.

Before that deflected blast touched the flitter, it was gone. But the flyer itself bounced upward, steadying well above the cliff top as a hovering warning.

"This is surely of the Great Ones!" The Guardian broke the united mind hold. "Those-they gave to us Power-" He stared at the invaders, still quivering from that strange inflow of force he knew originated with the scaled one and his two companions.

Yinko mind sent in a way that commanded an answer. "Who are you?"

"Seekers of knowledge."

"And those above who would destroy?"

"Those who fear true knowledge. But do not hold them lightly. They are a part of a great evil which has spread from world to world-"

Yinko interrupted: "They turn what they find to their own use?"

"It is so- On guard!"

The flitter had been moving away, only now to circle back. There was an opening in its belly, though if these jackers had come for wealth or knowledge of the past and used even a gas bomb, the effects of which might last long in this canyon, they could defeat their own purposes.

Yinko looked to the Guardian. The order he gave was one which had not been used for a thousand years or more. With a burst of speed that seemed incredible to the watch-ing invaders the Guardian threw himself as if to crash against the wall. That wall which Galan saw was cracking as the circling light of the globe appeared to bring destruction farther and farther out.

Into one of those enlarging cracks the Guardian plunged headfirst. He was now back in the gallery fromwhich he had earlier spied on the strangers. Speeding across it, he slammed his metal-sheathed claws into a spot on the inner wall and exerted all his strength.

The door he attacked gave reluctantly. Those without would buy him time if they could, but how strong was the power of the others? Could their weapons be held for a second time by the united effort of the People and those who had voluntarily aided at the first attack?

He was looking down, not into some dimly lit cavern but rather into a very large s.p.a.ce where at intervals along the walls were set rods emitting light. Nearly all the floor was covered with large, topless bins, packed in turn with containers of all sizes and shapes. The Guardian turned left, finding footing on a narrow ledge.