Hilvar had put a great deal of effort into organizing this expedition, and was obviously looking forward to it quite as much as Alvin. He had planned the route with his own interests in mind for natural history was his consuming passion and he hoped to find new types of insect life in the relatively uninhabited regions of Lys which they would be visiting. He intended to travel as far south as the machine could take them, and the rest of the way they would have to go on foot. Not realizing the full implications of this, Alvin made no objections.

They had a companion with them on the journey-Krif, the most spectacular of Hilvar’s many pets. When Krif was resting, his six gauzy wings lay folded along his body, which glittered through them like a jeweled scepter. If something disturbed him, he would rise into the air with a flicker of iridescence and a faint whirring of invisible wings. Though the great insect would come when called and would-sometimes-obey simple orders, it was almost wholly mindless. Yet it had a definite personality of its own, and for some reason was suspicious of Alvin whose sporadic attempts to gain its confidence always ended in failure.

To Alvin, the journey across Lys had a dreamlike unreality. Silent as a ghost, the machine slid across rolling plains and wound its way through forests, never deviating from its invisible track. It traveled perhaps ten times as fast as a man could comfortably walk: seldom indeed was any inhabitant of Lys in a greater hurry than that.

They passed through many villages, some larger than Airlee but most of them built along very similar lines. Alvin was interested to notice the subtle but significant differences in clothing and even physical appearance that occurred as they moved from one community to the next. The civilization of Lys was composed of hundreds of distinct cultures, each contributing some special talent toward the whole. The groundcar was well stocked with Airlee’s most famous product, a small, yellow peach which was gratefully received whenever Hilvar gave away some samples. He often stopped to talk to friends and to introduce Alvin, who never ceased to be impressed by the simple courtesy with which everyone used vocal speech as soon as thev knew who he was. It must often have been very tedious to them. but as far as he could judge they always resisted the temptation to lapse into telepathy and he never felt excluded from their conversation.

They made their longest pause at a tiny village almost hidden in a sea of tall golden grass, which soared high above their heads and which undulated in the gentle wind as if it was endowed with life. As they moved through it, they were continually overtaken by rolling waves as the countless blades bowed in unison above them. At first it was faintly disturbing, for Alvin had a foolish fancy that the grass was bending down to look at him, but after a while he found the continual motion quite restful.

Alvin soon discovered why they had made this stop. Among the little crowd that had already gathered before the car came gliding into the village was a shy, dark girl whom Hilvar introduced as Nyara. They were obviously very pleased to see one another again, and Alvin felt envious of their patent happiness at this brief reunion. Hilvar was clearly torn between his duties as a guide and his desire to have no other company but Nyara, and Alvin soon rescued him from his quandary by setting off on a tour of exploration by himself. There was not much to see in the little village, but he took his time.

When they started on their way again, there were many questions he was anxious to ask Hilvar. He could not imagine what love must be like in a telepathic society, and after a discreet interval he broached the subject. Hilvar was willing enough to explain, even though Alvin suspected that he had made his friend interrupt a prolonged and tender mental leavetaking.

In Lys, it seemed, all love began with mental contact, and it might be months or years before a couple actually met. In this way, Hilvar explained, there could be no false impressions, no deceptions on either side. Two people whose minds were open to one another could hide no secrets If either attempted it, the other partner would know at once that something was being concealed.

Only very mature and well-balanced minds could afford such honesty; only love based upon absolute unselfishness could survive it. Alvin could well understand that such a love would be deeper and richer than anything his people could know; it could be so perfect, in fact, that he found it hard to believe that it could ever occur at all.

Yet Hilvar assured him that it did, and became starry-eyed and lost in his own reveries when Alvin pressed him to be more explicit. There were some things that could not be communicated; one either knew them or one did not. Alvin decided sadly that he could never attain the kind of mutual understanding which these fortunate people had made tile very basis of their lives.

When the ground-car emerged from the savanna, which ended abruptly as though a frontier had been drawn beyond which the grass was not permitted to grow, there was a range of low, heavily wooded hills ahead of them. This was an outpost, Hilvar explained, of the main rampart guarding Lys. The real mountains lay beyond, but to Alvin even these small hills were an impressive and awe-inspiring sight.

The car came to a halt in a narrow, sheltered valley which was still flooded by the warmth and light of the descending sun. Hilvar looked at Alvin with a kind of wide-eyed candor which, one could have sworn, was totally innocent of any guile.

«This is where we start to walk,» he said cheerfully, beginning to throw equipment out of the vehicle. «We can’t ride any farther.» Alvin looked at the hills surrounding them, then at the comfortable seat in which he had been riding.

«Isn’t there a way around?» he asked, not very hopefully.

«Of course,» replied Hilvar. «But we’re not going around. We’re going to the top, which is much more interesting. I’ll put the car on automatic so that it will be waiting for us) when we get down the other side.»

Determined not to give in without a struggle, Alvin made one last effort.

«It will soon be dark,» he protested. «We’ll never be able to go all that way before sunset.»

«Exactly,» said Hilvar, sorting packages and equipment with incredible speed. «We’ll spend the night on the summit, and finish the journey in the morning.»

For once, Alvin knew when he was beaten. The gear that they were carrying looked very formidable, but though it was bulky it weighed practically nothing. It was all packed in gravity-polarizing containers that neutralized its weight, leaving only inertia to be contended with. As long as Alvin moved in a straight line, he was not conscious that he was carrying any load. Dealing with these containers required a little practice, for if he attempted to make a sudden change of direction his pack seemed to develop a stubborn personality and did its best to keep him on his original course, until he had overcome its momentum.

When Hilvar had adjusted all the straps and satisfied himself that everything was in order, they began to walk slowly up the valley. Alvin looked back wistfully as the ground-car retraced its track and disappeared from sight; he wondered how many hours would elapse before he could again relax in its comfort.

Nevertheless, it was very pleasant climbing upward with the mild sun beating on their backs, and seeing ever-new vistas unfold around them. There was a partly obliterated path which disappeared from time to time but which Hilvar seemed able to follow even when Alvin could see no trace of it. He asked Hilvar what had made the path. and was told that there were many small animals in these hills-some solitary, and some living in primitive communities whch echoed many of the features of human civilization. A few had even discovered, or been taught, the use of tools and fire. It never occurred to Alvin that such creatures might be other than friendly; both be and Hilvar took this for granted, for it had been so many ages since anything on Earth had challenged the supremacy of Man.