Sense of Obligation Part 7

"Just a single swallow," he said. "This is all we have."

Lea sipped at it with her eyes closed in appreciation. He sealed the top and returned it to the pack without taking any himself. They were sweating as they started up the first dune.

The desert was barren of life; they were the only things moving under that merciless sun. Their shadows pointed the way ahead of them, and as the shadows shortened the heat rose. It had an intensity Lea had never experienced before, a physical weight that pushed at her with a searing hand. Her clothing was sodden with perspiration, and it trickled burning into her eyes. The light and heat made it hard to see and she leaned on the immovable strength of Brion's arm. He walked on steadily, apparently ignoring the heat and discomfort.

"I wonder if those things are edible--or store water?" Brion's voice was a harsh rasp. Lea blinked and squinted at the leathery shape on the summit of the dune. Plant or animal, it was hard to tell. The size of a man's head, wrinkled and gray as dried-out leather, k.n.o.bbed with thick spikes. Brion pushed it up with his toe and they had a brief glimpse of a white roundness, like a s.h.i.+ny taproot, going down into the dune. Then the thing contracted, pulling itself lower into the sand. At the same instant something thin and sharp lashed out through a fold in the skin, striking at Brion's boot and withdrawing. There was a scratch on the hard plastic, beaded with drops of green liquid.

"Probably poison," he said, digging his toe into the sand. "This thing is too mean to fool with--without a good reason. Let's keep going."

It was before noon when Lea fell down. She really wanted to go on, but her body wouldn't obey. The thin soles of her shoes were no protection against the burning sand and her feet were lumps of raw pain. Heat hammered down, poured up from the sand and swirled her in an oven of pain. The air she gasped in was molten metal that dried and cracked her mouth. Each pulse of her heart throbbed blood to the wound in her scalp until it seemed her skull would burst with the agony. She had stripped down to the short tunic--in spite of Brion's insistence that she keep her body protected from the sun--and that clung to her, soaked with sweat. She tore at it in a desperate effort to breathe. There was no escape from the unending heat.

Though the baked sand burned torture into her knees and hands she couldn't rise. It took all her strength not to fall farther. Her eyes closed and everything swirled in immense circles.

Brion blinking through slitted eyes, saw her go down. He lifted and carried her again as he had the night before. The hot touch of her body shocked his bare arms. Her skin was flushed pink. Wiping his palm free of sweat and sand he touched her skin and felt the ominous hot dryness.

Heat-shock, all the symptoms. Dry, flushed skin, the ragged breathing.

Her temperature rising quickly as her body stopped fighting the heat and succ.u.mbed.

There was nothing he could do here to protect her from the heat. He measured a tiny portion of the remaining water into her mouth and she swallowed convulsively. The thinnest of the clothing protected her slight body from the direct rays of the sun. After that he could only take her in his arms and keep on toward the horizon. An outcropping of rock there threw a tiny patch of shade and he walked toward it.

The ground here, s.h.i.+elded from the direct rays of the sun, felt almost cool by contrast. Lea opened her eyes when he put her down, peering up at him through a haze of pain. She wanted to apologize to him for her weakness, but no words came from the dried membrane of her throat. His body above her seemed to swim back and forth in the heat waves, swaying like a tree in a high wind.

Shock drove her eyes open, cleared her mind for the instant. He really was swaying. With sudden horror she realized how much she had come to depend on the eternal solidity of his strength. Now it was failing. All over his body the corded muscles contracted in ridges, striving to keep him erect. She saw his mouth pulled open by the taut cords of his neck and the gaping, silent scream was more terrible than any sound. Then she screamed herself as his eyes rolled back, leaving just the empty white of the eyeb.a.l.l.s staring terribly at her. He went over, back down, like a felled tree, thudding heavily on the sand. Unconscious or dead she couldn't tell. She pulled limply at his leg, but couldn't drag his immense weight into the shade.

Brion lay on his back in the sun, sweating. Lea saw this and knew that he was still alive. Yet what was happening? She groped for memory in the red haze of her mind, but could remember nothing from her medical studies that would explain this. On every square inch of his body the sweat glands seethed with sudden activity. From every pore oozed great globules of oily liquid, far thicker than normal perspiration. Brion's arms rippled with motion and Lea stared, horrified as the hairs there writhed and stirred as though endowed with separate life. His chest rose and fell rapidly, deep, gasping breaths wracking his body. Lea could only stare through the dim redness of unreality and wonder if she was going mad before she died.

A coughing fit broke the rhythm of his rasping breath, and when it was over his breathing was easier. The perspiration still covered his body, the individual beads touching and forming tiny streams that seeped down his body and vanished in the sand. He stirred and rolled onto his side, facing her. His eyes open and normal now as he smiled.

"Didn't mean to frighten you. It caught me suddenly, coming at the wrong season and everything. It was a bit of a jar to my system. I'll get you some water now, there's still a bit left."

"What happened? When you looked like that, when you fell--"

"Take two swallows, no more," he said, holding the canteen to her mouth.

"Just summer change, that's all. Happens to us every year on Anvhar--only not that violently, of course. In the winter our bodies store a layer of fat under the skin for insulation and sweating almost ceases completely. Lot of internal changes, too. When the weather warms up the process is reversed. The fat is metabolized and the sweat glands enlarge and begin working overtime as the body prepares for two months of hard work, heat and little sleep. I guess the heat here triggered off the summer change early."

"You mean--you've adapted to this terrible planet?"

"Just about. Though it does feel a little warm. I'll need a lot more water soon, so we can't remain here. Do you think you can stand the sun if I carry you?"

"No, but I won't feel any better staying here." She was light-headed, scarcely aware of what she said. "Keep going, I guess. Keep going."

As soon as she was out of the shadow of the rock the sunlight burst over her again in a wave of hot pain. She was unconscious at once. Her slight weight was no burden to Brion and he made his best speed, heading toward the spot on the horizon where the sun would set. Without water he knew he could not last more than a day or two at best.

When sunset came he was still walking steadily. Only when the air chilled did he stop to dress them both in the warm clothes and push on.

Lea regained consciousness in the cool night air and finished the last mouthfuls of water. She wanted to walk, but could only moan with pain when her burned feet touched the ground. He put ointment on them and wrapped them in cloth. They were too swollen to go back into the ragged shoes. Lifting his burden he walked on into the night, following the guiding stars.

Except for the nagging thirst, it was an easy night. He wouldn't need sleep for two or three days more, so that didn't bother him. His muscles had a plentiful supply of fuel at hand in the no longer wanted subcutaneous fatty layer. Metabolizing it kept him warm. By running at a ground-eating pace whenever the footing was smooth he made good time. By dawn he was feeling a little tired and was at least ten kilos lighter due to the loss of the burned up fat.

There was no sight of the city yet. This was the last day. Ma.s.sive as the adaptation of his body was to the climate, it still needed water to function. As his pores opened in the heat he knew the end was very close. Weaving, stumbling, trying not to fall with the unconscious girl, he climbed dune after unending dune. Before his tortured eyes the sun expanded and throbbed like a gigantic beating heart. He struggled to the top of the mountain of sand and looked at the Disan standing a few feet away.

They were both too surprised by the sudden encounter to react at once.

For a breath of time they stared at each other, unmoving. When they reacted it was with the same defense of fear. Brion dropped the girl, bringing the gun up from the holster in the return of the same motion.

The Disan jerked a belled tube from his waistband and raised it to his mouth.

Brion didn't fire. A dead man had taught him how to train his empathetic sense, and to trust it. In spite of the fear that wanted him to jerk the trigger, a different sense read the unvoiced emotions of the native Disan. There was fear there, and hatred. Welling up around these was a strong desire not to commit violence this time, to communicate instead.

Brion felt and recognized all this in a small part of a second. He had to act instantly to avoid a tragic accident. A jerk of his wrist threw the gun to one side.

As soon as it was gone, he regretted his loss. He was gambling their lives on an ability he still was not sure of. The Disan had the tube to his mouth when the gun hit the ground. He held the pose, unmoving, thinking. Then he accepted Brion's action and thrust the tube back into his waistband.

"Do you have any water?" Brion asked, the guttural Disan words hurting his throat.

"I have water," the man said. He still didn't move. "Who are you?"

"We're from offplanet. We had ... an accident. We want to go to the city. The water."

The Disan looked at the unconscious girl and made his decision. Over one shoulder he wore one of the green objects that Brion remembered from the solido. He pulled it off and the thing writhed slowly in his hands. It was alive. A green length a meter long, like a noduled section of a thick vine. One end flared out into a petallike formation. The Disan took a hook-shaped object from his waist and thrust it into the petaled orifice. When he turned the hook in a quick motion the length of green writhed and curled around his arm. He pulled something small and dark out and threw it to the ground, extending the twisting green shape towards Brion. "Put your mouth to the end and drink," he said.

Lea needed the water more, but he drank first, suspicious of the living water source. A hollow below the writhing petals was filling with straw-colored water from the fibrous, reedy interior. He raised it to his mouth and drank. The water was hot and tasted swampy. Sudden sharp pains around his mouth made him jerk the thing away. Tiny glistening white barbs projected from the petals, pink tipped now with his blood.

Brion swung towards the Disan angrily--and stopped when he looked at the other man's face. His mouth was surrounded by many small scars.

"The vaede does not like to give up its water, but it always does," the man said.

Brion drank again then put the vaede to Lea's mouth. She moaned without regaining consciousness, her lips seeking reflexively for the life-saving liquid. When she was satisfied Brion gently drew the barbs from her flesh and drank again. The Disan hunkered down on his heels and watched them expressionlessly. Brion handed back the vaede, then held some of the clothes so Lea was in their shade. He settled into the same position as the native and looked closely at him.

Squatting immobile on his heels, the Disan appeared perfectly comfortable under the flaming sun. There was no trace of perspiration on his naked, browned skin. Long hair fell to his shoulders and startlingly blue eyes stared back at Brion from deep-set sockets. The heavy kilt around his loins was the only garment he wore. Once more the vaede rested over his shoulder, still stirring unhappily. Around his waist was the same collection of leather, stone and bra.s.s objects that had been in the solido. Two of them now had meaning to Brion. The tube-and-mouthpiece; a blowgun of some kind. And the specially shaped hook for opening the vaede. He wondered if the other strangely formed things had equally realistic functions. If you accepted them as artifacts with a purpose--not barbaric decorations--you had to accept their owner as something more than the crude savage he resembled.

"My name is Brion. And you--"

"You may not have my name. Why are you here? To kill my people?"

Brion forced the memory of the last night away. Killing was just what he had done. Some expectancy in the man's manner, some sensed feeling of hope prompted Brion to speak the truth.

"I'm here to stop your people from being killed. I believe in the end of the war."

"Prove it."

"Take me to the Cultural Relations.h.i.+ps Foundation in the city and I'll prove it. I can do nothing here in the desert. Except die."

For the first time there was emotion on the Disan's face. He frowned and muttered something to himself. There was a fine beading of sweat above his eyelids now as he fought an internal battle. Coming to a decision he rose, and Brion stood, too.

"Come with me. I'll take you to Hovedstad. But wait, there is one thing I must know. Are you from Nyjord?"

"No."