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  She brought out her measure, touched the little disk to the base of the trunk, walked along the tree until the readout indicated ten meters, then touched the trunk again. A red dot now marked the spot.

  He trimmed the base smooth, then severed the trunk at the ten-meter mark. The log shifted and settled more comfortably into the spongy ground. Now he fiddled with a special control, adjusting the saw. "Actually, I'm doing this for you. I'll have to marry another aristocratic clone; you'll get to pick a real person to family with."

  "Want to bet? There are more males of our generation than females. That's why they operated on me to turn me female, hedging the bet. I'll probably have to marry the clone, while you get to graze among the common herd."

  "There is that," he agreed. "I must admit, there are some commoners I wouldn't mind hitching to. Clonedom is seeming more sterile these days; so few of our kind have any real fire or ambition. They're mostly all socialites, forcing us to play that game too. Stand back, doll. This can be tricky."

  The laser beam shot out way beyond its prior length. He aligned it with the length of the log, then levered it slowly so that it made a burn in the bark from end to end. He moved the beam over and made a similar burn, a quarter of the way around. Then he readjusted the saw and used the short cutting beam to trim an edge lengthwise along one line. A meter on the saw showed him precisely what orientation to maintain to keep the cut correctly angled.

  "You know, someday the other clones will have to find out about you," he remarked as he worked. Jesse was never silent for very long. "We can't keep it secret forever."

  She knew it. She had nightmares about premature, involuntary exposure. Yet she responded bravely enough: "If you find an aristocratic spouse soon, we can. It would be nice to save this hedge for another generation, protecting our line. Once the other clones catch on, they'll all be doing it, and our line will have no advantage."

  He nodded soberly. With four cuts, he had a beam roughly square in cross section, ten meters long. The irregularities of his trimming only made it seem authentically hand-hewn. "Where could we get a finer ridge-beam than that?" he asked rhetorically.

  "Nowhere," she answered, impressed.

  "Still mad at me for buying the saw?"

  "No, of course not."

  "Five thousand credits—you could buy a lot of silly perfume for that, to make commoners think you're sexy."

  "I'll take the saw."

  He grinned, pleased. "Make that literal. You hew the next beam. Why should I do all the work?"

  "And the castle mortgage paid off," she said, liking the notion better. "That's the first time our family's been solvent in a generation."

  "Still, considering the danger of the mission—" he teased.

  "Oh, shut up!"

  "Now you know how to turn it on and off, Jess. The saw, I mean. It's not heavy, just keep your arm steady and your dugs out of the way; don't let them dangle in the beam."

  "I don't dangle, you do!" But she accepted the saw, eager to try her skill. She had, of course, been raised in the male tradition, and there were aspects of it she rather enjoyed, such as hewing beams.

  "I don't dangle when I'm with someone interesting." He took the measuring disk and marked off another ten-meter section. "Sever it here."

  She started toward him. "The trunk, not me!" he protested, stepping back with his hands protectively in front of him.

  She shrugged as if disappointed and set the saw at the mark. The laser moved into the woods. "I can't even feel it!"

  "Right. There's no recoil, no snag with laser. Just watch the beam, make sure it stays white. With this tool we can saw boards, shape columns, polish panels, drill holes—anything! I plan to cut wooden pegs to hold it together, along with notching. This saw has settings for carving out pegs, notches, and assorted bevels and curlicues; you just have to program it. We can build our whole house with this one saw!"

  "You're right," she said, no longer even attempting to be flip. "We need this machine. It is worth the credit. You just be sure you report for that mission on time!"

  "Precious little short of death itself could keep me away," he assured her. "And the Society of Hosts insurance would cover the advance, if I died before reporting, so even then you'd keep the money. But it's not just the money I'm doing it for; I'm tired of this dreary aristocratic life. I want real adventure for a change! I want to go out among the stars, travel to the farthest places, experience alien existence, see the universe!"

  "Yes..." she breathed, envying him his coming adventure.

  "You just make sure I wake up in time to report for transfer when—"

  The log severed before she was aware of it. It dropped suddenly and rolled toward them. It was massive, half a meter thick at the cut: weight enough to crush a leg. Jessica screamed in temporary panic and swung the valuable saw out of the way, her finger locked on the trigger. Jesse grabbed for her, trying to draw her bodily out of harm's way.

  The wildly shifting laser beam passed across his spine. His shirt fell open, cleanly cut, but for a moment there was no blood. He fell, his arms looped about her thighs.

  The rolling log stopped short of his body, balked by the chance irregularity of the ground. Jessica, acting with numb relief, drew her finger from the trigger, turned off the saw, set it down carefully, and caught her brother under the arms as he slid slowly facefirst toward the turf. "Oh, Jesse, are you hurt?"

  But even as she spoke, she knew he was. His aura, which really merged with hers, was fluctuating wildly. The beam, set to cut wood, had touched him only briefly—not enough to cut his body in half or even to cut his backbone, but sufficient to penetrate a centimeter or so. Elsewhere it would have made a nasty gash in the flesh; across his spine it was critical.

  His body was paralyzed, but he retained consciousness and speech. "Jess—" he gasped as she rolled him over and tenderly brushed the dirt from his face. "My aura—is it—?"

  "Jess, the beam cut into your spinal cord," she said, horrified. "Your aura is irregular." She knew the extent if not the precise nature of the injury because the sympathetic response in her own aura touched her spine, lending a superficial numbness to her legs. His aura irregular? It was an understatement. "I'll call an ambulance." She fumbled for her communicator. The health wing would arrive in minutes.

  "No, Jess!" he rasped. "I may live—but hospital'd take weeks! I have only two days."

  "To hell with two days!" she cried, the tears overflowing. "You can't go on that mission now! Even if you weren't badly injured, your aura would never pass. It reflects your physical condition. It has to be fully healthy to pass, you know that! I'll take care of you, I promise!"

  "Kill me," he said. "Say it was part of the accident Just pass the laser across my chest, slowly, so as to intersect the heart—"

  "No!" she screamed. "Jess, what are you saying?"

  "The insurance—death benefit—only if I die, it covers—"

  "Jess!"

  "Jess, I can't renege on that mission. The advance would be forfeited, the insurance invalid, and we'd lose the whole estate and the family reputation. Have Flowers pick up the body; he'll cover for you. He's been in this business a long time, he's doctored family skeletons before, you can bet on it, and he's completely loyal to us. He'll do it. I'd rather die than—"

  "Jess, I won't do it!" she cried. "I know Flowers would cover for us. I don't care. I love you, clone-brother! I don't care what—"

  But he was unconscious; she knew by the change in his aura. He had fought for consciousness until his message was out, then let go.

  She brought the communicator to her mouth—and paused, comprehending the position they were in. The first flush of emotion was phasing into the broader reality of their situation. She could save her brother's life— for what? For a remaining life of poverty and shame? He had spoken truly! He was a joker, but never a coward. He would prefer to die. Now, cleanly, painlessly, with a certain private honor, leaving her to carry on the reputation of the family an
d maintain the millennium-old estate. She knew this—for his aura was hers, his mind was hers, and she shared this preference. They were aristocrats! If she had been injured in such a way as to forfeit honor and fortune together, death would seem a welcome alternative.

  She could do it. She had the nerve, bred into the royal line, and because she was royal, she would not be interrogated. Her word and the visible evidence would suffice. Flowers would employ his professional touch to make the case tight. She could kill her brother-self, and save the family honor and fortune. It was feasible.

  Yet she did love him, as she loved herself. How could she face a world without him? Though he might later marry, and she also, with one being royal and the other becoming a commoner, they would always be closest to each other, clone-siblings.

  She had to decide—now. Before his metabolism adapted to the injury, making a biochemical/aural analysis possible that would show the separate nature of her act. Now, this minute—or never.

  Jessica picked up the saw and held it over Jesse's body. She knew the expedient course—yet her love opposed it with almost equal force. Was there no way out?

  Chapter 1

  Alien Encounter

  Heem of Highfalls emerged from the transfer chamber and followed the HydrO ahead of him toward the acclimatization wing. Another HydrO host rolled into the transfer chamber behind him. The operation had to move with precision; there were more than three hundred HydrOs to process as nearly simultaneously as possible.

  Yet Heem moved without vigor, hardly perceiving his surroundings. A squirt of flavored water struck him. "Thirty-nine! Are you conscious?"

  Heem yanked himself to a better semblance of awareness. "Yes, yes," he sprayed. "Merely adapting to my transfer-guest."

  "Then get to your chamber. You have bypassed it."

  So he had. He was up to forty-two. Heem reversed course and moved to thirty-nine. He picked up the vapor taste of it and rolled into its aperture.

  The chamber was small and comfortable. The air was fresh and neutral, with plenty of free hydrogen. "You have three chronosprays before release," the room informed him.

  Heem collapsed. In his subconscious he dreamed the forbidden memory. He was a juvenile again, among his HydrO peers. In that secret time before he metamorphosed into adult status. He was rolling with his siblings in the beautiful ghetto of Highfalls, bouncing across the rock faces, through the chill rivulets, and around the huge soft domes of the trees. They were racing, their jets growing warm with the competitive effort.

  Hoom was leading at the moment. He had the strongest torque jets and usually gained on direct-land terrain. Heem was second, closely followed by Hiim. Haam trailed; he had a clogged jet and it hampered his progress.

  Heem had been gaining jet strength recently and had always had finesse in liquid. Today was especially good; his metabolism was functioning better than ever before. Now Hoom was tiring, becoming too warm; his conversion efficiency was declining slightly. Heem remained relatively cool, yet was putting out more water; he was gaining. The feeling of victory was growing.

  Hoom, as leader, chose the route. Hoping to improve his position, he plunged into the highfalls itself.

  It was an effective tactic. Heem plunged in after him, and suffered the retardation his cooler body was liable to. He lost position. But soon his liquid finesse helped him, enabling him to recover quickly, and he was gaining again. He caught up to Hoom, then passed him as they emerged from the water.

  "Lout!" Hoom spurted. He fired a barrage of jets at Heem in an unsporting maneuver. Some of them were needlejets that stung. Heem, alert for such foul play, fired one needle back, scoring on Hoom's most proximate spout as Hoom's own jet faded.

  "Cheat!" Hoom sprayed, enraged. He fired another barrage which Heem countered with another precise shot. Heem had the most accurate needles of them all.

  Now the others caught up. "No fighting, no fighting!" they protested.

  "He needled me, trying to pass!" Hoom sprayed.

  For a moment, the audacity of the lie overwhelmed Heem, and he was tasteless. Thus it seemed he offered no refutation, and that was tantamount to confession.

  But Haam was cautious about such judgment. "I did not taste the initiation of this exchange," he sprayed. "But it was Hoom, not Heem, who needlejetted me at the outset of this race, clogging my jet."

  Perceiving the shift of opinion, Hoom took the offensive again. "What use in winning a race, anyway? We have raced every day, now one winning, now another. How does it profit us? Which of you has the nerve to roll up to a real challenge?"

  "Why roll to any challenge?" Hiim inquired reasonably. "We have no needs we cannot accommodate passively. So long as there is air, we are comfortable."

  "You may be comfortable," Hoom replied. "I want to know what lies beyond this valley. Are there others of our own kind, or are we alone?"

  "Why not go, then, and report back to us?" Hiim asked him.

  "I do not wish to go alone. It is a long, hard roll over the mountain range, perhaps dangerous. If we all go together—"

  "I find difficulty and danger no suitable challenge," Hiim sprayed. "It seems foolish to me to risk my convenient life in such manner."

  But Heem found himself agreeing with Hoom. "I do not entirely relish the roll up the mountain slope or the prospect of drastic shift in environment," he sprayed. "Yet my mind suffers dulling and tedium in the absence of challenge. I value my mind more than my convenience. Therefore I will undertake the roll up the mountain with Hoom."

  Hoom was uncommunicative, caught in the awkwardness of being supported by the party he had fouled. It was Haam who sprayed next. "I too am curious about the wider environment, but disinclined to undertake the enormous effort of such a roll. I would go if I could ascertain an easier mode of travel."

  "Make it really easy," Hiim scoffed. "Ride a flat-floater."

  There was a general spray of mirth. The flatfloater was a monster whose biology was similar to their own. It drew its energy from the air, merging hydrogen with oxygen, with a constant residue of water. But its application differed. Instead of using jets of waste-water to roll itself over land or through the river, it used them to push itself up into the air a small distance. This required a lot of energy; in fact the force of its jets was so strong, and the heat of its conversion so great, that a large proportion of its elimination was gaseous. Water expanded greatly when vaporized, so that the volume of exhaust was much larger than the volume of its intake. Hot water vapor blasted down from it, billowing out in disgusting clouds, condensing as it cooled, coating the surroundings. The sapient HydrOs stayed well clear of the flatfloaters!

  Hoom, however, was foolhardy. "Why not?" he demanded. "The upper surface of the floater is cool enough, where the air intakes are. It indents toward the center. We could ride safely there—"

  It might just be possible! Their analytic minds fastened on this notion. But almost immediately objections developed. "How would we guide it?" Haam asked.

  "How would we get on it—or off it?" Heem added.

  Hoom found himself under challenge to defend a notion he had not originated, for indeed if a flatfloater could be harnessed, it could surely take them anywhere rapidly—even over the mountain. If he could establish the feasibility of the flatfloater, he could make them all join the traveling. "The floater is stupid. When it feels distress, it flees it. We could needle it on the side opposite the direction we wish it to go, and it would flee— carrying us along."

  They considered, realizing the possibility.

  "And to board it," Hoom sprayed excitedly, "the floater descends to bathe itself, for it has no jets on its upper surface and the sun dehydrates it. Periodically it must immerse itself in water. We have only to lurk at its bath-region and roll aboard as it submerges. To deboard we must simply force it near a slope and roll off the higher side. Since the floater is always level, the drop to ground will be slight."

  They considered further, and it seemed feasible. Hoom had surmounte
d the challenge of method; now they were under onus to implement it. Since none came up with a reason to refute this course of action, they found themselves committed.

  Heem was excited but not fully hydrogenated by the notion. He wanted to explore, but feared the possible consequence. So he went along, as did the others. The physical race had become something else, and Hoom had retained the initiative.

  Given the specific challenge, they set about meeting it without immediate emphasis on the long-range goal. They located the spoor of the flatfloater, in the form of taste lingering on vegetation and ground, diffuse but definite. They traced it in the direction of freshness, locating the floater's favorite haunts. It preferred open water, not too deep, with no large growths near enough to disrupt the takeoff. That made approach more difficult.

  They decided to lay in wait underwater. It was more difficult to breathe in liquid, since it was in effect a bath of their own waste product, but there were tiny bubbles of gas in it that sufficed for slow metabolism, for a while. In flowing water it was possible to remain submerged indefinitely, for new bubbles were carried in to replace the used ones, and the non-hydrogenated water would be carried away. However, flowing water tended to be cool.

  The advantages and disadvantages were mixed. Their ambient taste would be diminished by the reduced rate of metabolism necessitated by the limitation of hydrogen, and the surrounding water would dilute that taste, and the slow current would carry it away, until their precise location was virtually indistinguishable. The danger was that if the wait were too long, they could be cooled to the level of inadequate functioning. This had happened to a former peer; he had soaked himself in chill water to abate a fever, had slept and never awoken. He remained there now, functioning on the level of a beast, his sapience gone. It had been a cruel lesson for the rest of them: one of many. Do not suffer your body to cool too far, lest the upkeep of your sapience deteriorate!

  Heem remembered a time when thirty or more sapients had inhabited Highfalls; now only the four of them remained.