document: THE SERPENT RIVER
   
   
   By Don Wilcox
   
   [Transcriber's Note: This etext was produced from Other Worlds May 1957. Extensive research did not uncover any evidence that the U.S. copyright on this publication was renewed.]
   
   
  
   The Code was rigid—no fraternization with the peoples of other planets! Earth wanted no "shotgun weddings" of the worlds of space!
   
   
   
   "Split" Campbell and I brought our ship down to a quiet landing on the summit of a mile-wide naked rock, and I turned to the telescope for a closer view of the strange thing we had come to see.
   
   It shone, eighteen or twenty miles away, in the light of the late afternoon sun. It was a long silvery serpent-like
   
    something
   
   that crawled slowly over the planet's surface.
   
   There was no way of guessing how large it was, at this distance. It might have been a rope rolled into shape out of a mountain—or a chain of mountains. It might have been a river of bluish-gray dough that had shaped itself into a great cable. Its diameter? If it had been a hollow tube, cities could have flowed through it upright without bending their skyscrapers. It was, to the eye, an endless rope of cloud oozing along the surface of the land. No, not cloud, for it had the compactness of solid substance.
   
   We could see it at several points among the low foothills. Even from this distance we could guess that it had been moving along its course for centuries. Moving like a sluggish snake. It followed a deep-worn path between the nearer hills and the high jagged mountains on the horizon.
   
   
    What was it?
   
   
   "Split" Campbell and I had been sent here to learn the answers. Our sponsor was the well known "EGGWE" (the Earth-Galaxy Good Will Expeditions.) We were under the EGGWE Code. We were the first expedition to this planet, but we had come equipped with two important pieces of advance information. The Keynes-Roy roving cameras (unmanned) had brought back to the Earth choice items of fact about various parts of the universe. From these photos we knew (1) that man lived on this planet, a humanoid closely resembling the humans of the Earth; and
  (2) that a vast cylindrical "rope" crawled the surface of this land, continuously, endlessly.
   
   We had intentionally landed at what we guessed would be a safe distance from the rope. If it were a living thing, like a serpent, we preferred not to disturb it. If it gave off heat or poisonous gases or deadly vibrations, we meant to keep our distance. If, on the other hand, it proved to be some sort of vegetable—a vine of glacier proportions—or a river of some silvery, creamy substance—we would move in upon it gradually, gathering facts as we progressed. I could depend upon
  "Split" to record all observable phenomena with the accuracy of split-hairs.
   
   Split was working at the reports like a drudge at this very moment.
   
   I looked up from the telescope, expecting him to be waiting his turn eagerly. I misguessed. He didn't even glance up from his books. Rare young Campbell! Always a man of duty, never a man of impulse!
   
   "Here Campbell, take a look at the 'rope'."
   
   "Before I finish the reports, sir? If I recall our Code, Section Two, Order of Duties upon Landing: A—"
   
   "Forget the Code. Take a look at the rope while the sun's on it.... See it?"
   
   "Yes sir."
   
   "Can you see it's moving? See the little clouds of dust coming up from under its belly?"
   
   "Yes sir. An excellent view, Captain Linden."
   
   "What do you think of it, Split? Ever see a sight like that before?"
   
   "No sir."
   
   "Well, what about it? Any comments?"
   
   Split answered me with an enthusiastic, "By gollies, sir!" Then, with restraint, "It's precisely what I expected from the photographs, sir. Any orders, sir?"
   
   "Relax, Split! That's the order. Relax!"
   
   "Thanks—thanks, Cap!" That was his effort to sound informal, though coming from him it was strained. His training had given him an exaggerated notion of the importance of dignity and discipline.
   
   He was naturally so conscientious it was painful. And to top it all, his scientific habit of thought made him want to stop and weigh his words even when speaking of casual things such as how much sugar he required in his coffee.
   
   Needless to say, I had kidded him unmercifully over these traits. Across the millions of miles of space that we had recently traveled
  (our first voyage together) I had amused myself at his expense. I had sworn that he would find, in time, that he couldn't even trim his fingernails without calipers, or comb his hair without actually physically splitting the hairs that cropped up in the middle of the part. That was when I had nicknamed him "Split"—and the wide ears that stuck out from his stubble-cut blond hair had glowed with the pink of selfconsciousness. Plainly, he liked the kidding. But if I thought I could rescue him from the weight of dignity and duty, I was mistaken.
   
   Now he had turned the telescope for a view far to the right. He paused.
   
   "What do you see?" I asked.
   
   "I cannot say definitely. The exact scientific classification of the object I am observing would call for more detailed scrutiny—"
   
   "You're seeing some sort of object?"
   
   "Yes sir."
   
   "What sort of object?"
   
   "A living creature, sir—upright, wearing clothes—"
   
   "A
   
    man
   
   ?"
   
   "To all appearances, sir—"
   
   "You bounder, give me that telescope!"
   
   
  
   2.
   
   If you have explored the weird life of many a planet, as I have, you can appreciate the deep sense of excitement that comes over me when, looking out at a new world for the first time, I see a man-like animal.
   
   Walking upright!
   
   Wearing adornments in the nature of clothing!
   
   I gazed, and my lungs filled with the breath of wonderment. A man! Across millions of miles of space—a man, like the men of the Earth.
   
   Six times before in my life of exploration I had gazed at new realms within the approachable parts of our universe, but never before had the living creatures borne such wonderful resemblance to the human life of our Earth.
   
   A man!
   
   He might have been creeping on all fours.
   
   He might have been skulking like a lesser animal.
   
   He might have been entirely naked.
   
   He was none of these—and at the very first moment of viewing him I felt a kinship toward him. Oh, he was primitive in appearance—but had my ancestors not been the same? Was this not a mirror of my own race a million years or so ago? I sensed that my own stream of life had somehow crossed with his in ages gone by. How? Who can ever know? By what faded charts of the movements through the sky will man ever be able to retrace relationships of forms of life among planets?
   
   "Get ready to go out and meet him, Campbell," I said. "He's a friend."
   
   Split Campbell gave me a look as if to say, Sir, you don't even know what sort of animal he is, actually, much less whether he's friendly or murderous.
   
   "There are some things I can sense on first sight, Campbell. Take my word for it, he's a friend."
   
   "I didn't say anything, sir."
   
   "Good. Don't. Just get ready."
   
   "We're going to go
   
    out
   
   —?"
   
   "Yes," I said. "Orders."
   
   "And meet both of them?" Split was at the telescope.
   
   "Both?" I took the instrument from him. Both! "Well!"
   
   "They seem to be coming out of the ground," Split said. "I see no signs of habitation, but apparently we've landed on top of an underground city—though I hasten to add that this is only an hypothesis."
   
   "One's a male and the other's a female," I said.
   
   "Another hypothesis," said Split.
   
   The late evening sunshine gave us a clear view of our two "friends". They were fully a mile away. Split was certain they had not seen our ship, and to this conclusion I was in agreement. They had apparently come up out of the barren rock hillside to view the sunset. I studied them through the telescope while Split checked over equipment for a hike.
   
   The man's walk was unhurried. He moved thoughtfully, one might guess. His bare chest and legs showed him to be statuesque in mold, cleanly muscled, fine of bone. His skin was almost the color of the cream-colored robe which flowed from his back, whipping lightly in the breeze. He wore a brilliant red sash about his middle, and this was matched by a red headdress that came down over his shoulders as a circular mantle.
   
   The girl stood several yards distant, watching him. This was some sort of ritual, no doubt. He was not concerned with her, but with the setting sun. Its rays were almost horizontal, knifing through a break in the distant mountain skyline. He went through some routine motions, his moving arms highlighted by the lemon-colored light of evening.
   
   The girl approached him. Two other persons appeared from somewhere back of her.... Three.... Four.... Five....
   
   "Where do they come from?" Split had paused in the act of checking equipment to take his turn at the telescope. If he had not done so, I might not have made a discovery. The landscape was
   
    moving
   
   .
   
   The long shadows that I had not noticed through the telescope were a prominent part of the picture I saw through the ship's window when I looked out across the scene with the naked eye. The shadows were moving.
   
   They were tree shadows. They were moving toward the clearing where the crowd gathered. And the reason for their movement was that the trees themselves were moving.
   
   "Notice anything?" I asked Split.
   
   "The crowd is growing. We've certainly landed on top of a city." He gazed. "They're coming from underground."
   
   Looking through the telescope, obviously he didn't catch the view of the moving trees.
   
   "Notice anything else unusual?" I persisted.
   
   "Yes. The females—I'm speaking hypothetically—but they
   
    must
   
   be females—are all wearing puffy white fur ornaments around their elbows. I wonder why?"
   
   "You haven't noticed the trees?"
   
   "The females are quite attractive," said Split.
   
   I forgot about the moving trees, then, and took over the telescope. Mobile trees were not new to me. I had seen similar vegetation on other planets—"sponge-trees"—which possessed a sort of muscular quality. If these were similar, they were no doubt feeding along the surface of the slope below the rocky plateau. The people in the clearing beyond paid no attention to them.
   
   I studied the crowd of people. Only the leader wore the brilliant garb. The others were more scantily clothed. All were handsome of build. The lemon-tinted sunlight glanced off the muscular shoulders of the males and the soft curves of the females.
   
   "Those furry elbow ornaments on the females," I said to Split,
  "they're for protection. The caves they live in must be narrow, so they pad their elbows."
   
   "Why don't they pad their shoulders? They don't have anything on their shoulders."
   
   "Are you complaining?"
   
   We became fascinated in watching, from the seclusion of our ship. If we were to walk out, or make any sounds, we might have interrupted their meeting. Here they were in their native ritual of sunset, not knowing that people from another world watched. The tall leader must be making a speech. They sat around him in little huddles. He moved his arms in calm, graceful gestures.
   
   "They'd better break it up!" Split said suddenly. "The jungles are moving in on them."
   
   "They're spellbound," I said. "They're used to sponge-trees. Didn't you ever see moving trees?"
   
   Split said sharply, "Those trees are marching! They're an army under cover. Look!"
   
   I saw, then. The whole line of advancing vegetation was camouflage for a sneak attack. And all those natives sitting around in meeting were as innocent as a flock of sitting ducks. Split Campbell's voice was edged with alarm. "Captain! Those worshippers—how can we warn them? Oh-oh! Too late. Look!"
   
   All at once the advancing sponge-trees were tossed back over the heads of the savage band concealed within. They were warriors—fifty or more of them—with painted naked bodies. They dashed forward in a wide semicircle, swinging crude weapons, bent on slaughter.
   
   
  
   3.
   
   They were waving short clubs or whips with stones tied to the ends. They charged up the slope, about sixty yards, swinging their weird clubs with a threat of death.
   
   Wild disorder suddenly struck the audience. Campbell and I believed we were about to witness a massacre.
   
   "Captain—
   
    Jim
   
   ! You're not going to let this happen!"
   
   Our sympathies had gone to the first groups, the peaceable ones. I had the same impulse as Campbell—to do something—anything! Yet here we sat in our ship, more than half a mile from our thirty-five or forty
  "friends" in danger.
   
   Our friends were panicked. But they didn't take flight. They didn't duck for the holes in the rocky hilltop. Instead, they rallied and packed themselves around their tall leader. They stood, a defiant wall.
   
   "Can we shoot a ray, Jim?"
   
   I didn't answer. Later I would recall that Split
   
    could
   
   drop his dignity under excitement—his "Captain Linden" and "sir." Just now he wanted any sort of split-second order.
   
   We saw the naked warriors run out in a wide circle. They spun and weaved, they twirled their deadly clubs, they danced grotesquely. They were closing in. Closer and closer. It was all their party.
   
   "Jim, can we shoot?"
   
   "Hit number sixteen, Campbell."
   
   Split touched the number sixteen signal.
   
   The ship's siren wailed out over the land.
   
   You could tell when the sound struck them. The circle of savage ones suddenly fell apart. The dancing broke into the wildest contortions you ever saw. As if they'd been spanked by a wave of electricity. The siren scream must have sounded like an animal cry from an unknown world. The attackers ran for the sponge-trees. The rootless jungle came to life. It jerked and jumped spasmodically down the slope. And our siren kept right on singing.
   
   "Ready for that hike, Campbell? Give me my equipment coat." I got into it. I looked back to the telescope. The tall man of the party had behaved with exceptional calmness. He had turned to stare in our direction from the instant the siren sounded. He could no doubt make out the lines of our silvery ship in the shadows. Slowly, deliberately, he marched over the hilltop toward us.
   
   Most of his party now scampered back to the safety of their hiding places in the ground. But a few—the brave ones, perhaps, or the officials of his group—came with him.
   
   "He needs a stronger guard than that," Campbell grumbled.
   
   Sixteen was still wailing. "Set it for ten minutes and come on," I said. Together we descended from the ship.
   
   We took into our nostrils the tangy air, breathing fiercely, at first. We slogged along over the rock surface feeling our weight to be one-and-a-third times normal. We glanced down the slope apprehensively. We didn't want any footraces. The trees, however, were still retreating. Our siren would sing on for another eight minutes. And in case of further danger, we were equipped with the standard pocket arsenal of special purpose capsule bombs.
   
   Soon we came face to face with the tall, stately old leader in the cream-and-red cloak.
   
   Split and I stood together, close enough to exchange comments against the siren's wail. Fine looking people, we observed. Smooth faces. Like the features of Earth men. These creatures could walk down any main street back home. With a bit of makeup they would pass.
  "Notice, Captain, they have strange looking eyes." "Very smooth."
  "It's because they have no eyebrows ... no eye lashes." "Very smooth—handsome—attractive."
   
   Then the siren went off.
   
   The leader stood before me, apparently unafraid. He seemed to be waiting for me to explain my presence. His group of twelve gathered in close.
   
   I had met such situations with ease before. "EGGWE" explorers come equipped. I held out a gift toward the leader. It was a singing medallion attached to a chain. It was disc-shaped, patterned after a large silver coin. It made music at the touch of a button. In clear, dainty bell tones it rang out its one tune, "Trail of Stars."
   
   As it played I held it up for inspection. I placed it around my own neck, then offered it to the leader. I thought he was smiling. He was not overwhelmed by the "magic" of this gadget. He saw it for what it was, a token of friendship. There was a keenness about him that I liked. Yes, he was smiling. He bent his head forward and allowed me to place the gift around his neck.
   
   "Tomboldo," he said, pointing to himself.
   
   Split and I tried to imitate his breathy accents as we repeated aloud,
  "Tomboldo."
   
   We pointed to ourselves, in turn, and spoke our own names. And then, as the names of the others were pronounced, we tried to memorize each breathy sound that was uttered. I was able to remember four or five of them. One was Gravgak.
   
   Gravgak's piercing eyes caused me to notice him. Suspicious eyes? I did not know these people's expressions well enough to be sure.
   
   Gravgak was a guard, tall and muscular, whose arms and legs were painted with green and black diamond designs.
   
   By motions and words we didn't understand, we inferred that we were invited to accompany the party back home, inside the hill, where we would be safe. I nodded to Campbell. "It's our chance to be guests of Tomboldo." Nothing could have pleased us more. For our big purpose—to understand the Serpent River—would be forwarded greatly if we could learn, through the people, what its meanings were. To analyze the river's substance, estimate its rate, its weight, its temperature, and to map its course—these facts were only a part of the information we sought. The fuller story would be to learn how the inhabitants of this planet regarded it: whether they loved or shunned it, and what legends they may have woven around it. All this knowledge would be useful when future expeditions of men from the Earth followed us (through EGGWE) for an extension of peaceful trade relationships.
   
   Tomboldo depended upon the guard Gravgak to make sure that the way was safe. Gravgak was supposed to keep an eye on the line of floating trees that had taken flight down the hillside. Danger still lurked there, we knew. And now the siren that had frightened off the attack was silent. Our ship, locked against invaders, could be forgotten. We were guests of Tomboldo.
   
   Gravgak was our guard, but he didn't work at it. He was too anxious to hear all the talk. In the excitement of our meeting, everyone ignored the growing darkness, the lurking dangers. Gravgak confronted us with agitated jabbering:
   
   "Wollo—yeeta—vo—vandartch—vandartch! Grr—see—o—see—o—see—o!"
   
   "See—o—see—o—see—o," one of the others echoed.
   
   It began to make sense. They wanted us to repeat the siren noises. The enemy had threatened their lives. There could very well have been a wholesale slaughter. But as long as we could make the "see—o—see—o" we were all safe.
   
   Split and I exchanged glances. He touched his hand to the equipment jacket, to remind me we were armed with something more miraculous than a yowling siren.
   
   "See—o—see—o—see—o!" Others of Tomboldo's party echoed the demand. They must have seen the sponge-trees again moving toward our path.
  "
   
    See—o—see—o!
   
   "
   
   Our peaceful march turned into a spasm of terror. The sponge-trees came rushing up the slope, as if borne by a sudden gust of wind. They bounced over our path, and the war party spilled out of them.
   
   Shouting. A wild swinging of clubs. And no cat-and-mouse tricks. No deliberate circling and closing in. An outright attack. Naked bodies gleaming in the semi-darkness. Arms swinging weapons, choosing the nearest victims. The luminous rocks on the ends of the clubs flashed. Shouting, screeching, hurling their clubs. The whizzing fury filled the air.
   
   I hurled a capsule bomb. It struck at the base of a bouncing sponge-tree, and blew the thing to bits.
   
   The attackers ran back into a huddle, screaming. Then they came forward, rushing defiantly.
   
   Our muscular guard, Gravgak was too bold. He had picked up one of their clubs and he ran toward their advance, and to all of Tomboldo's party it must have appeared that he was bravely rushing to his death. Yet the gesture of the club he swung so wildly could have been intended as a
   
    warning
   
   ! It could have meant, Run back, you fools, or these strange devils will throw fire at you.
   
   I threw fire. And so did my lieutenant. He didn't wait for orders, thank goodness. He knew it was their lives or ours. Zip, zip, zip—BLANG-BLANG-BLANG! The bursts of fire at their feet ripped the rocks. The spray caught them and knocked them back. Three or four warriors in the fore ranks were torn up in the blasts. Others were flattened—and those who were able, ran.
   
   They ran, not waiting for the cover of sponge-trees. Not bothering to pick up their clubs.
   
   But the operation was not a complete success. We had suffered a serious casualty. The guard Gravgak. He had rushed out too far, and the first blast of fire and rock had knocked him down. Now Tomboldo and others of the party hovered over him.
   
   His eyes opened a little. I thought he was staring at me, drilling me with suspicion. I worked over him with medicines. The crowd around us stood back in an attitude of awe as Split and I applied ready bandages, and held a stimulant to his nostrils that made him breath back to consciousness.
   
   Suddenly he came to life. Lying there on his back, with the club still at his fingertips, he swung up on one elbow. The swift motion caused a cry of joy from the crowd. I heard a little of it—and then blacked out. For as the muscular Gravgak moved, his fingers closed over the handle of the club. It whizzed upward with him—apparently all by accident. The stone that dangled from the end of the club crashed into my head.
   
   I went into instant darkness. Darkness, and a long, long silence.
   
   
  
   4.
   
   Vauna, the beautiful daughter of Tomboldo, came into my life during the weeks that I lay unconscious.
   
   I must have talked aloud much during those feverish hours of darkness.
   
   "Campbell!" I would call out of a nightmare. "Campbell, we're about to land. Is everything set? Check the instruments again, Campbell."
   
   "S-s-sh!" The low hush of Split Campbell's voice would somehow penetrate my dream.
   
   The voices about me were soft. My dreams echoed the soft female voices of this new, strange language.
   
   "Campbell, are you there?... Have you forgotten the Code, Campbell?"
   
   "Quiet, Captain."
   
   "Who is it that's swabbing my face? I can't see."
   
   "It's Vauna. She's smiling at you, Captain. Can't you see her?"
   
   "Is this the pretty one we saw through the telescope?"
   
   "One of them."
   
   "And what of the other? There were two together. I remember—"
   
   "Omosla is here too. She's Vauna's attendant. We're all looking after you, Captain Linden. Did you know I performed an operation to relieve the pressure on your brain? You must get well, Captain." The words of Campbell came through insistently.
   
   After a silence that may have lasted for hours or days, I said,
  "Campbell, you haven't forgot the EGGWE Code?"
   
   "Of course not, Captain."
   
   "Section Four?"
   
   "Section Four," he repeated in a low voice, as if to pacify me and put me to sleep. "Conduct of EGGWE agents toward native inhabitants: A, No agent shall enter into any diplomatic agreement that shall be construed as binding—"
   
   I interrupted. "Clause D?"
   
   He picked it up. "D, no agent shall enter into a marriage contract with any native.... H-m-m. You're not trying to warn me, are you, Captain Linden? Or are you warning
   
    yourself
   
   ?"
   
   At that moment my eyes opened a little. Swimming before my blurred vision was the face of Vauna. I did remember her—yes, she must have haunted my dreams, for now my eyes burned in an effort to define her features more clearly. This was indeed Vauna, who had been one of the party of twelve, and had walked beside her father in the face of the attack. Deep within my subconscious the image of her beautiful face and figure had lingered. I murmured a single word of answer to Campbell's question. "Myself."
   
   In the hours that followed, I came to know the soft footsteps of Vauna. The caverns in which she and her father and all these Benzendella people lived were pleasantly warm and fragrant. My misty impressions of their life about me were like the first impressions of a child learning about the world into which he has been born.
   
   Sometimes I would hear Vauna and her attendant Omosla talking together. Often when Campbell would stop in this part of the cavern to inquire about me, Omosla would drop in also. She and Campbell were learning to converse in simple words. And Vauna and I—yes. If I could only avoid blacking out.
   
   I wanted to see her.
   
   So often my eyes would refuse to open. A thousand nightmares. Space ships shooting through meteor swarms. Stars like eyes. Eyes like stars. The eyes of Vauna, the daughter of Tomboldo. The sensitive stroke of Vauna's fingers, brushing my forehead, pressing my hand.
   
   I regained my health gradually.
   
   "Are you quite awake?" Vauna would ask me in her musical Benzendella words. "You speak better today. Your friend Campbell has brought you more recordings of our language, so you can learn to speak more. My father is eager to talk with you. But you must sleep more. You are still weak."
   
   It gave me a weird sensation to awaken in the night, trying to adjust myself to my surroundings. The Benzendellas were sleep-singers. By night they murmured mysterious little songs through their sleep. Strange harmonies whispered through the caves.
   
   And if I stirred restlessly, the footsteps of Vauna might come to me through the darkness. In her sleeping garments she would come to me, faintly visible in the pink light that filtered through from some corridor. She would whisper melodious Benzendella words and tell me to go back to sleep, and I would drift into the darkness of my endless dreams.
   
   The day came when I awakened to see both Vauna and her father standing before me. Stern old Tomboldo, with his chalk-smooth face and not a hint of an eyebrow or eyelash, rapped his hand against my ribs, shook the fiber bed lightly, and smiled. From a pocket concealed in his flowing cape, he drew forth the musical watch, touched the button, and played, "Trail of Stars."
   
   "I have learned to talk," I said.
   
   "You have had a long sleep."
   
   "I am well again. See, I can almost walk." But as I started to rise, the wave of blackness warned me, and I restrained my ambition. "I will walk soon."
   
   "We will have much to talk about. Your friend has pointed to the stars and told me a strange story of your coming. We have walked around the ship. He has told me how it rides through the sky. I can hardly make myself believe." Tomboldo's eyes cast upward under the strong ridge of forehead where the eyebrows should have been. He was evidently trying to visualize the flight of a space ship. "We will have much to tell each other."
   
   "I hope so," I said. "Campbell and I came to learn about the
   
    serpent river
   
   ." I resorted to my own language for the last two words, not knowing the Benzendella equivalent.
   
    I
   
   made an eel-like motion with my arm. But they didn't understand. And before I could explain, the footsteps of other Benzendellas approached, and presently I looked around to see that quite an audience had gathered. The most prominent figure of the new group was the big muscular guard of the black and green diamond markings—Gravgak.
   
   "You get well?" Gravgak said to me. His eyes drilled me closely.
   
   "I get well," I said.
   
   "The blow on the head," he said, "was not meant."
   
   I looked at him. Everyone was looking at him, and I knew this was meant to be an occasion of apology. But the light of fire in Vauna's eyes told me that she did not believe. He saw her look, and his own eyes flashed darts of defiance. With an abrupt word to me, he wheeled and started off. "Get well!"
   
   The crowd of men and women made way for him. But in the arched doorway he turned. "Vauna. I am ready to speak to you alone."
   
   She started. I reached and barely touched her hand. She stopped. "I will talk with you later, Gravgak."
   
   "Now!" he shouted. "Alone."
   
   He stalked off. A moment later Vauna, after exchanging a word with her father, excused herself from the crowd and followed Gravgak.
   
   From the way those in the room looked, I knew this must be a dramatic moment. It was as if she had acknowledged Gravgak as her master—or her lover. He had called for her. She had followed.
   
   But her old father was still the master. He stepped toward the door.
  "Vauna!... Gravgak!... Come back."
   
   (I will always wonder what might have happened if he hadn't called them! Was my distrust of Gravgak justified? Had I become merely a jealous lover—or was I right in my hunch that the tall muscular guard was a potential traitor?)
   
   Vauna reappeared at once. I believe she was glad that she had been called back.
   
   Gravgak came sullenly. At the edge of the crowd in the arched doorway he stood scowling.
   
   "While we are together," old Tomboldo said quietly, looking around at the assemblage, "I must tell you the decision of the council. Soon we will move back to the other part of the world."
   
   There were low murmurs of approval through the chamber.
   
   "We will wait a few days," Tomboldo went on, "until our new friend—" he pointed to me—"is well enough to travel. We would never leave him here to the mercy of the savage ones. He and his helper came through the sky in time to save us from being destroyed. We must never forget this kindness. When we ascend the
   
    Kao-Wagwattl
   
   , the ever moving
   
    rope of life
   
   , these friends shall come with us. On the back of the Kao-Wagwattl
   
    they shall ride with us across the land
   
   ."
question_text: Who is Captain Linden and what happens to him throughout the story?
response: Captain Linden is a member of the Earth-Galaxy Good Will Expeditions (EGGWE) and Lieteuant “Split” Campbell’s superior officer. He is a confident man and loves teasing Split. After having been on one expedition before, Linden and Split were ready to arrive on this planet and investigate the Serpent River. As they look out at the seemingly-barren world through their telescope, Linden notices people emerging from underground. He watches in awe as they all gather around one man and a woman, seemingly about to perform some sort of ritual. The shadows of the trees move, but he sees nothing abnormal about this. Warriors rush out of the trees to attack the Benzendella, so Captian Linden saves them by having Split press the siren button, #16. He uses the EGGWE code of conduct when addressing the leader, Tomboldo, and offers him a gift. They are invited underground to their home but are attacked by the warriors again before they can descend. Gravgak is injured, so Linden and Split try to take care of him. When he awakens, he smashes his club into Linden’s head, possibly on purpose. 
  Linden wakes, days later, underground with Vauna by his side. Vauna is Tomboldo’s daughter, and Linden quickly develops feelings for her. The EGGWE code forbids its members to marry any natives, and he reminds himself of that. 
  He speaks with Tomboldo and Gravgak, the latter of which explains that it was an accident, though the look in his eyes and his tone of voice says otherwise. Tomboldo invites Linden and Split to join them on their journey aboard the Serpent River, as they travel across the planet looking for safety. 
  