al might, rather than through technical development. Even with the coming of communist society our civilization has remained rudimentally technical and only in the Era of Common Labour did we turn to the perfection of man himself and not only his machines, houses, food and amusements." The dance was over. The young red-skinned woman came into the centre of the hall and the camera of the transmitter focussed on her alone. Her outstretched arms and her face were turned to the ceiling of the hall. The eyes of the Earth-dwellers involuntarily followed her glance. There was no ceiling, or, perhaps, some clever optical illusion created the impression of a night sky with very large and bright stars. The strange combinations of constellations did not arouse any association. The girl waved her hand and a blue ball appeared on the index finger of her left hand. A silvery ray streamed out of the ball and served her as a gigantic pointer. A round patch of light at the end of the pointer halted first on one then on another star in the ceiling. In each case the emerald panel showed a motionless picture extremely wide in scale. As the pointer ray moved from star to star the panel demonstrated a series of inhabited and uninhabited planets. Joyless and sorrowful were the stone or sand deserts that burned in the rays of red, blue, violet and yellow suns. Sometimes the rays of a strange leaden-grey star would bring to life on its planets flattened domes or spirals, permeated with electricity, that swam like jelly-fish in a dense orange atmosphere or ocean. In the world of the red sun there grew trees of incredible height with slimy black bark, trees that stretched their millions of crooked branches heavenwards as though in despair. Other planets were completely covered with dark water. Huge living islands, either animal or vegetable, were floating everywhere, their countless hairy feelers waving over the smooth surface of the water. "They have no planets near them that possess the higher forms of life," said Junius Antus, suddenly, without once taking his eyes off the star map of the unknown sky. "Yes they have," said Darr Veter, "although the flattened stellar system to one side of them is one of the newest formations in the Galaxy, we know that flattened and globular systems, the old and the new, not infrequently alternate. In the direction of Eridanus there is a system with living intelligences that belongs to the Circle." "VVR 4955 + MO 3529 ... etc.," added Mven Mass, "but why don't they know of it?" "The system entered the Great Circle 275 years ago and this communication was made before that," answered Darr Veter. The red-skinned girl from the distant world shook the blue ball from her finger and turned to face her audience, her arms spread out widely as though to embrace some invisible person standing before her. She threw back her head and shoulders as a woman of Earth would in a burst of passion. Her mouth was half open and her lips moved as she repeated inaudible words. So she stood, immobile, appealing, sending forth into the cold darkness of interstellar space fiery human words of an entreaty for friendship with people of other worlds. Again her enthralling beauty held the Earth-dwellers spellbound. She had nothing of the bronze severity of the red-skinned people of Earth. Her round face, small nose and big, widely-placed blue eyes bore more resemblance to the northern peoples of Earth. Her thick, wavy black hair was not stiff. Every line of her face and body expressed a light and joyful confidence that came from a subconscious feeling of great strength. "Is it possible that they know nothing of the Great Circle?" Veda Kong almost groaned as though in obeisance before her beautiful sister from the Cosmos. "By now they probably know," answered Darr Veter, the scenes we have witnessed date three hundred years back." "Eighty-eight parsecs," rumbled Mven Mass's low voice. "Eighty-eight.... All those people we have just seen have long been dead." As though in confirmation of his words the scene from the wonderful world disappeared and the green indicator went out. The transmission around the Great Circle was over. For another minute they were all in a trance. The first to recover was Darr Veter. Biting his lip in chagrin he hurriedly turned the granulated lever. The column of directed energy switched off with the sound of a gong that warned power station engineers to re-direct the gigantic stream of energy into its usual channels. The Director of the Outer Stations turned back to his companions only when all the necessary manipulations had been completed. Junius Antus, with a frown on his face, was looking through pages of written notes. "Some of the memory records taken down from the pBtellar map on the ceiling must be sent to the Southern Sky Institute!" he said, turning to Darr Veter's young assistant. The latter looked at Junius Antus in amazement as though he had just awakened from an unusual dream. The grim scientist looked at him, a smile lurking in his eyes-what they had seen was indeed a dream of a wonderful world sent out into space three hundred years before ... a dream that thousands of millions of people on Earth and in the colonies on the Moon, Mars and Venus would now see so clearly that it would be almost tangible. "You were right, Mven Mass," smiled Darr Veter, "when you said before the transmission began that something unusual was going to happen today. For the first time in the eight hundred years since we joined the Great Circle a planet has appeared in the Universe inhabited by beings who are our brothers not only in intellect but in body as well. You can well imagine my joy at this discovery. Your tour of duty as Director has begun auspiciously! In the old days people would have said that it was a lucky sign and our present-day psychologists would say that coincidental events have occurred that favour confidence and give you encouragement in your further work." Darr Veter stopped suddenly: nervous reaction had made him more verbose than usual. In the Era of the Great Circle verbosity was considered one of the most disgraceful failings possible in a man-the Director of the Outer Stations stopped without finishing his sentence. "Yes, yes ..." responded Mven Mass, absent-mindedly. Junius Antus noticed the sluggishness in his voice and in his movements; he was immediately on the alert. Veda Kong quietly ran her finger along Darr Veter's hand and nodded towards the African. "Perhaps he is too impressionable?" wondered Darr Veter staring fixedly at his successor. Mven Mass sensed the concealed surprise of his companions; he straightened up and became his usual self, an attentive and skilled performer of the task in hand. An escalator took them to the upper storeys of the building where there were extensive windows looking out at the starry sky that was again as far away as it had always been during the whole thirty thousand years of man's existence-or rather the existence of that species of hominids known as Homo sapiens. Mven Mass and Darr Veter had to remain behind. Veda Kong whispered to Darr Veter that she would never forget that night. "It made me feel so insignificant!" she said, in conclusion, her face beaming despite her sorrowful words. Darr Veter knew what she meant and shook his head. "I am sure that if the red woman had seen you she would have been proud of her sister, Veda. Surely our Earth isn't a bit worse than their planet!'' Darr Veter's face was glowing with the light of love. "That's seen through your eyes, my friend," smiled Veda, "but ask Mven Mass what he thinks!" Jokingly she covered his eyes with her hand and then disappeared round a corner of the wall. When Mven Mass was, at last, left alone it was already morning. A greyish light was breaking through the cool, still air and the sky and the sea were alike in their crystal transparency, the sea silver and the sky pinkish. For a long time the African stood on the balcony of the observatory gazing at the still unfamiliar outlines of the buildings. On a low plateau in the distance rose a huge aluminium arch crossed by nine parallel aluminium bars, the spaces between them filled in with yellowish-cream and silvery plastic glass; this was the building of the Astronautical Council. Before the building stood a monument to the first people to enter outer space; the steep slope of a mountain reaching into clouds and whirlwinds was surmounted by an old-type spaceship, a fish-shaped rocket that pointed its sharp nose into still unattainable heights. Cast-metal figures, supporting each other in a chain, were making a superhuman effort to climb upwards, spiralling their way around the base of the monument-these were the pilots of the rocket ships, the physicists, astronomers, biologists and writers with bold imaginations.... The hull of the old spaceship and the light lattice-work of the Council building were painted red by the dawn, but still Mven Mass continued pacing up and down the balcony. Never before had he met with such a shock. He had been brought up according to the general educational rules of the Great Circle Era, had had a hard physical training and had successfully performed his Labours of Hercules- the difficult tasks performed by every young person at the end of his schooling that had been given this name in honour of ancient Greece. If a youngster performed these tasks successfully he was considered worthy to storm the heights of higher education. Mven Mass had worked on the construction of the water-supply system of a mine in Western Tibet, on the restoration of the Araucaria pine forests on the Nahebt Plateau in South America and had taken part in the annihilation of the sharks that had again appeared off the coasts of Australia. His training, his heredity and his outstanding abilities enabled him to undertake many years of persistent study to prepare himself for difficult and responsible activities. On that day, during the first hour of his new work, there had been a meeting with a world that was related to our Earth and that had brought something new to his heart. With alarm Mven Mass felt that some great depths had opened up within him, something whose existence he had never even suspected. How he craved for another meeting with the planet of star Epsilon in the Tucan Constellation! ... That was a world that seemed to have come into being by power of the best legends known to the Earth-dwellers. He would never forget the red-skinned girl, her outstretched alluring arms, her tender, half-open lips! The fact that two hundred and ninety light years dividing him from that marvellous world was a distance that could not be covered by any means known to the technicians of Earth served to strengthen rather than weaken his dream. Something new had grown up in Mven's heart, something that lived its own life and did not submit to the control of the will and cold intellect. The African had never been in love, he had been absorbed in his work almost as a hermit would be and had never experienced anything like the alarm and incomparable joy that had entered his heart during that meeting across the tremendous barrier of space and time. CHAPTER THREE. CAPTIVES OF THE DARK The fat black arrows on the orange-coloured anameson fuel indicators stood at zero. The spaceship had not escaped the iron star, its speed was still great and it was being drawn towards that horrible star that human eyes could not see. The astronavigator helped Erg Noor, who was trembling from weakness and from the effort he had made, to sit down at the computing machine. The planetary motors, disconnected from the robot helmsman, faded out. "Ingrid, what's an iron star?" asked Kay Bear, softly; all that time he had been standing motionless behind her back. "An invisible star, spectral class T, that has become extinguished and is either in the process of cooling off or of reheating. It emanates the long infrared waves of the heat end of the spectrum whose rays are black to us and can only be seen through the electronic inverter. An owl can see the infrared rays and, therefore, could see the star." "Why is it called iron?" "There is a lot of iron in the spectrum of those that have been studied and it seems there's a lot of it in the star's composition. If the star is a big one its mass and gravity are enormous. And I'm afraid we're going to meet one of the big ones." "What comes next?" "I don't know. You know yourself that we've got no fuel. We're flying straight towards the star. We must brake Tantra down to a speed one-thousandth of the absolute, at which speed sufficient angular deviation will be possible. If the planetary fuel gives out too, the spaceship will slowly approach the star until it falls on it." Ingrid jerked her head nervously and Kay gently stroked her bare arm, all covered with goose-flesh. The commander of the expedition went over to the control desk and concentrated on the instruments. Everybody kept silent, almost afraid to breathe, even Nisa Greet, who, although she had only just woke up, realized instinctively the danger of their situation. The fuel might be sufficient to brake the ship; but with loss of velocity it would be more difficult to get out of the tremendous gravitational field of the iron star without the ship's motors. If Tantra had not approached so close and if Lynn had realized in time ... but what consolation was there in those empty "ifs"? Three hours passed before Erg Noor had made his decision. Tantra vibrated from the powerful thrust of the trigger motors. Her speed was reduced. An hour, a second, a third and a fourth, an elusive movement of the commander's hand, horrible nausea for everybody in the ship and the terrifying brown star disappeared from the forward screen and reappeared on the second. Invisible bonds of gravity continued to hold the ship and were recorded in the measuring instruments. Two red eyes burned over Erg Noor's head. He pulled a lever towards himself and the motors stopped working. "We're out!" breathed Pel Lynn in relief. The commander slowly turned his glance towards him. "We're not. We have only the iron ration of fuel left, sufficient for orbital revolution and landing." "What can we do?" "Wait! I have diverted the ship a little, but we are passing too close. A battle is now going on between the star's force of gravity and the reduced speed of Tantra. It's flying like a lunar rocket at the moment and if it can get away we shall fly towards the Sun and will be able to call Earth. The time required for the journey, of course, will he much greater. In about thirty years we'll send out our call for help and another eight years later it will come." "Thirty-eight years!" Bear whispered in scarcely audible tones in Ingrid's ear. She pulled him sharply by the sleeve and turned away. Erg Noor leaned back in his chair and dropped his hands on his knees. Nobody spoke and the instruments continued softly humming. Another melody, out of tune and, therefore, ominous, was added to the tuned melody of the navigation instruments. The call of the iron star, the great strength of its iron mass pulling for the weakened spaceship, was almost physically tangible. Nisa Creet's cheeks were burning, her heart was beating wildly. This inactive waiting had become unbearable. The hours passed slowly. One after another the awakened members of the expedition appeared in the control tower. The number of silent people increased until all fourteen were assembled. The speed of the ship had been progressively reduced until it reached a point that was lower than the velocity of escape so that Tantra could not get away from the iron star. Her crew forgot all about food and sleep and did not leave the control tower for many miserable hours during which the ship's course changed more and more to a curve until she was in the fatal elliptical orbit. Tantra's fate was obvious to the entire crew. A sudden howl made them all start. Astronomer Pour Hyss jumped up and waved his hands. His distorted face was unrecognizable, he bore no resemblance to a man of the Great Circle Era. Fear, self-pity and a craving for revenge had swept all signs of intellectuality from the face of the scientist. "Him, it was him," howled Pour Hyss, pointing to Pel Lynn, "that clot, that fool, that brainless worm ...." The astronomer choked as he tried to recall the swear-words of his ancestors that had long before gone out of use. Nisa, who was standing near him, moved away contemptuously. Erg Noor stood up. "The condemnation of a colleague will not help us. The time is past when such an action could have been intentional. In this case," Noor spun the handles on the computing machine carelessly, "as you see there was a thirty per cent probability of error. If we add to that the inevitable depression that comes at the end of a tour of duty and the disturbance due to the pitching of the ship I don't doubt that you. Pour Hyss, would have made the same mistake!" "And you?" shouted the astronomer, but with less fury than before. "I should not. I saw a monster like this at close quarters during the 36th Space Expedition. It is mostly my fault-I hoped to pilot the ship through the unknown region myself, but I did not foresee everything, I confined myself to giving simple instructions!" "How could you have known that they would enter this region without you?" exclaimed Nisa. "I should have known it," answered Erg Noor, firmly, in this way refusing the friendly aid of the astronavigator, "but there's no sense in talking about it until we get bade to Earth." "To Earth!" whined Pour Hyss and even Pel Lynn frowned in perplexity, "to say that, when all is lost and only death lies ahead of us!" "Not death but a gigantic struggle lies ahead of us," answered Erg Noor, confidently, sitting down in a chair that stood before the table. "Sit down. There's no need to hurry until Tantra has made one and a half revolutions." Those present obeyed him in silence and Nisa gave the biologist a smile, triumphant, despite the hopelessness of the moment. "This star undoubtedly has a planet, even two, I imagine, judging by the curves of the isograve.10 The planets, as you see," the commander made a rapid but accurate sketch, "should be big ones and, therefore, should have an atmosphere. We don't need to land, though, we have enough atomized solid oxygen." " Erg Noor stopped to gather his thoughts. "We shall become the satellite of the planet and travel in orbit around it. If the atmosphere of the planet is suitable and we use up our air, we have sufficient planetary fuel to land and call for help. In six months we can calculate the direction," he continued, ''transmit to Earth the results obtained from Zirda and send for a rescue ship and save our ship." "If we do save it..." Pour Hyss pulled a wry face as he tried to hide the joy that kindled anew in his heart. "Yes, if we do," agreed Erg Noor. "That, however, is clearly our goal. We must muster all our forces to achieve it. You, Pour Hyss and Ingrid Dietra, make your observations and calculate the size of the planets, Bear and Nisa. compute the velocity from the mass of the planets and when you know that compute the orbital velocity of the spaceship and the optimal radiant12 for its revolutions." The explorers began to make preparations for a landing should it prove to be necessary. The biologist, the geologist and the physician prepared a reconnaissance robot, the mechanics adjusted the landing locators and searchlights and got ready a rocket satellite that would transmit a message to Earth. The work went particularly well after the horror and hopelessness they had experienced and was only interrupted by the pitching of the ship in gravitational vortices. Tantra, however, had so reduced her speed that the pitching no longer caused the people great discomfort. Pour Hyss and Ingrid established the presence of two planets. They had to reject the idea of approaching the outer planet--it was huge in size, cold, encircled by a thick layer of atmosphere that was probably poisonous and threatened them with death. If they had to make a choice of deaths it would probably have been better to burn up on the surface of the iron star than drown in the gloom of an ammonia atmosphere by plunging the ship into a thousand-kilometre thick layer of ammonia ice. There were similar terrible, gigantic planets in the solar system- Jupiter, Saturn, Uranus and Neptune. Tantra continued to approach the star. In nineteen days they determined the size of the inner planet and it proved to be bigger than Earth. The planet was quite close to its sun, the iron star, and was carried round its orbit at frantic speed, its year being no more than two or three terrestrial months. The invisible star T no doubt made it quite warm with its black rays and, if there was an atmosphere, life could have emerged there. In the latter case landing would be particularly dangerous. Alien forms of life that had developed under conditions of other planets and by other evolutionary paths and had the albumin cells common to the whole Cosmos were extremely dangerous to Earth-dwellers. The adaptation of the organism to protect itself against harmful refuse and disease bacteria that had been going on for millions of centuries on our planet was powerless against alien forms of life. To the same degree life from other planets was in similar danger on Earth. The basic activity of animal life-in killing to devour and in devouring to kill-made its appearance with de-pressingly brutal cruelty when the animal life of different worlds clashed. Fantastic diseases, instantaneous epidemics, the terrible spreading of pests and horrible injuries beset the first explorations of habitable hut uninhabited planets. Worlds that were inhabited by intelligent beings made numerous experiments and preparations before establishing direct spaceship communications. On our Earth, far removed from the central parts of the Galaxy where life abounds, there had been no visitors from the planets of other stars, no representatives of other civilizations. The Astronautical Council had shortly before completed preparations for the reception of visitors from the planets of not too distant stars in the Ophiuchus, Cygnus, Ursa Major and Apus constellations. Erg Noor, worried by the possibility of meeting with unknown forms of life, ordered the biological means of defence, that he had taken a big supply of in the hope of visiting Vega, to be brought out of the distant store-rooms. At last Tantra equalized her orbital velocity with that of the planet and then began to revolve around it. The indefinite, dark-brown surface of the planet, or rather, of its atmosphere, with reflections of the bloody-brown sun, could only be seen through the electronic inverter. All members of the expedition were busy at the instruments. '"The temperature of the upper layers of the daylight side is 320° on the Kelvin scale." " "Rotation about the axis approximately 20 days." "The locators show the presence of water and land." ''The thickness of the atmosphere is 1,700 kilometres." "The exact mass is 43.2 times Earth's mass." The reports followed one another continuously and the nature of the planet was becoming clear. Erg Noor summarized the figures as they came in and was making preparations to compute the orbit. The planet was a big one, 43.2 times the mass of Earth, and its force of gravity would hold the ship pressed down to the ground. The people would be as helpless as flies on a fly-paper. The commander recalled the terrible stories he had heard, half legend, half history, of the old spaceships that had, for various reasons, come into contact with the huge planets. In those days the slow ships with low-powered fuel often perished. The end came with a roar of motors and the spasmodic shuddering of a ship that could not get away but remained stuck to the surface of the planet. The ship remained intact but the bones of the people trying to crawl about the ship were broken. The indescribable horror of great weight had been communicated in the fragmentary cries of last reports, in the farewell transmissions. The crew of Tantra were not menaced by that danger as long as they revolved about the planet. If they had to land on its surface, however, only the strongest people would be able to drag the weight of their own bodies in this, the future haven that was to be theirs for many long years .... Could they keep alive under such conditions- crushed by the great weight, in the eternal darkness of the infrared rays of the black sun, in a dense atmosphere? Whatever the conditions were, it was a hope of salvation, it did not mean death and, anyway, there was no choice! Tantra's orbit drew closer to the outer fringe of the atmosphere. The expedition could not miss the opportunity of investigating a hitherto unknown planet that was comparatively close to Earth. The lighted, or rather, heated side of the planet differed from the night side not only by its much greater temperature but also by the huge agglomerations of electricity that so interfered with the powerful locators that their indications were distorted beyond recognition. Erg Noor decided to study the planet with the help of bomb stations. They sent out a physical research robot and the automatic recorder reported on an astonishing quantity of free oxygen in an atmosphere of neon and nitrogen, the presence of water vapour and a temperature of 12° C. These were conditions that, in general, were similar to those on Earth. But the pressure of the thick atmosphere was 1.4 times that of normal pressure on Earth and the force of gravity was 2.5 times greater. "We can live here," said the biologist, smiling feebly as lie reported the station's findings to the commander. "If we can live on that gloomy, heavy planet, then something is probably living there already, something small and harmful." For the spaceship's fifteenth revolution a bomb beacon with a powerful transmitter was prepared. This second physical research station, dropped on the night side when the planet had rotated through 120°, disappeared without sending out any signals. "It has fallen into the ocean," said geologist Beena Ledd, biting her lips in annoyance. "We must feel our way with the main locator before we put out a TV robot. We've only got two of them." Tantra emitted a bunch of directed radio waves as she revolved round the planet, feeling for the contours of seas and continents that owing to distortion were unclear. They found the outlines of a huge plain that thrust out into the ocean, or divided two oceans, almost on the planet's equator. The spaceship's ray zigzagged across a strip of land two hundred kilometres wide. Suddenly a bright point flared up on the locator screen. A whistle that lashed their strained nerves told them that it was no hallucination. "Metal!" exclaimed the geologist, "an open deposit." Erg Noor shook his head. "Although the flash did not last long I managed to note its regular outline. That was a huge piece of metal, a meteorite or ...." "A ship!" exclaimed Nisa and the biologist together. "Fantasy!" snapped Pour Hyss. "It may be fact," objected Erg Noor. "What does it matter, it's no use arguing," said Pour Hyss, unwilling to give in. "There's no way of proving it, we're not going to laud, are we?" "We'll check up on it in three hours' time when we reach that plain again. Notice that the metal object is on the plain that I, too, would have chosen to land on. We'll throw out the TV robot at that very spot. Tune the locator ray to a six-second warning!" The commander's plan was successful and Tantra made another three-hour flight round the dark planet. The next time the ship approached the continental plain it was met by TV broadcasts from the robot. The people peered into the light screen. With a click the visible ray was switched on and peered like a human eye, noting the outlines of things far down below, in that thousand-kilometre-deep black abyss. Kay Bear could well imagine the head of the robot station sticking out of the armour plate and revolving like a lighthouse. The zone that was swept by the instrument's eye appeared on the screen and was there and then photographed: the view consisted of low cliffs, hills and the winding black lines of watercourses. Suddenly the vision of a gleaming, fish-shaped object crossed the screen and again melted into the darkness as it was abandoned by the light ray to the darkness and the ledges of the plateau. "A spaceship!" gasped several voices in unison. Nisa looked at Pour Hyss with undisguised triumph. The screen went dark as Tantra left the area of the TV robot's activity and Eon Thai immediately set about developing the film of the electronic photographs. With fingers that trembled with impatience he placed the film in the projector of the hemispherical screen that would give them stereoscopic pictures of what had been photographed. The inner walls of the hollow hemisphere gave them an enlarged picture. The familiar cigar-shaped outlines of the ship's hows, the bulge of the stern, the high ridge of the equilibrium receiver .... No matter how unbelievable it all was, no matter how utterly impossible they might regard a meeting here, on the dark planet, the robot could not invent anything, a terrestrial spaceship lay there! It lay horizontally, in the normal landing position, supported by its powerful landing struts, undamaged, as though it had only just alighted on to the planet of the iron star. Tantra, revolving in a shorter orbit closer to the planet, sent out signals that were not answered. A few more hours passed. The fourteen members of the expedition again gathered in the control tower. Erg Noor, who had been sitting in deep contemplation, stood up. "I propose to land Tantra. Perhaps our brothers are in need of help, perhaps their ship is damaged and cannot return to Earth. If so we can take them, transfer their anameson and save ourselves. There is no sense in sending out a rescue rocket. It cannot do anything to give us fuel and will use up so much energy that there will not be enough left to send a signal to Earth." "Suppose the ship is here because of a shortage of anameson?" asked Pel Lynn, cautiously. "Then it should have ion planetary charges, they could not have used up everything. As you see the spaceship is in its proper position which means they landed with the planetary motors. We'll transfer the ion fuel, take off again and go into orbit; then we can call Earth for help and in case of success that won't take more than eight years. And if we can get anameson, then we shall have won out." "Maybe they have photon and not ion charges for their planetary motors," said one of the engineers. "We can make use of them in the big motors if we fit them with auxiliary bowl reflectors." "I see you've thought of everything.," said the engineer, giving in. "There is still the risk of landing on a heavy planet and the risk of living there," muttered Pour Hyss. "It's awful just to think of that world of darkness!" "The risk, of course, remains. But there is risk in our very situation and we shall hardly increase it by landing. The planet on which our spaceship will land is not a bad one as long as we do not damage the ship." Erg Noor cast a glance at the dial of the speed regulator and walked swiftly to the control desk. For a whole minute he stood in front of the levers and vernier scales of the controls. The fingers of his big hands moved as though they were selecting chords on some musical instrument, his back was bent and his face turned to stone. Nisa Greet went up to him, boldly took his right hand and pressed the palm to her smooth cheek, hot from excitement. Erg Noor nodded in gratitude, stroked the girl's mass of hair and straightened himself up. "We are entering the lower layers of the atmosphere to land," he said loudly, switching on the warning siren. The howl carried throughout the ship and the crew hurried to strap themselves into hydraulic floating scats. Erg Noor dropped into the soft embrace of the landing chair that rose up from the floor before the control desk. Then came the heavy strokes of the planetary engines and the spaceship rushed down, howling, towards the cliffs and oceans of the unknown planet. The locators and the infrared reflectors felt their way through the primordial darkness below, red lights glowed on the altimeter scales at 15,000 metres. It was not anticipated that there would be mountains much over 10,000 metres high on the planet where water and the heat of the black sun had been working to level out the surface as was the case on Earth. The first revolution round the planet revealed no mountains, only insignificant heights, little bigger than those of Mars. It looked as though the activity of the internal forces that gave rise to mountains had ceased or had been checked. Erg Noor placed the altitude governor at 2,000 metres and switched on the powerful searchlights. A huge ocean stretched below the spaceship, an ocean of horror, an unbroken mass of black waves that rose and fell over unfathomable depths. The biologist wiped away the perspiration caused by his strenuous efforts; he was trying to catch in his instrument the faint variations in reflection from the black water to determine its salt and mineral content. The gleaming black of the water gave way to the dull black of land. The crossed rays of the searchlights cut a narrow lane between walls of darkness. Unexpectedly there were patches of colour in this lane, yellow sands and the greyish-green surface of a flat rocky ridge. Tantra swept across the continent, obedient to the skilled hand of the commander. At last Erg Noor found the plain he was looking for; it proved to be low-lying country that could not possibly be termed a plateau although it was obvious that the tides and storms of the black sea would not reach it, lying, as it did, some hundred metres above the surrounding country. The locator on the spaceship's port bow whistled. Tantra's searchlights followed the locator beam and the clear outlines of a first class spaceship came into view. The bow armour, made of an isotope of iridium having a reorganized crystalline structure, shone like new in the rays of the searchlight. There were no temporary structures anywhere near the ship, there were no lights on board-it stood dark and lifeless and did not in any way react to the approach of a sister ship. The searchlight rays moved past the ship and were reflected from a huge disc with spiral projections as they would have been from a blue mirror. The disc was standing on edge, leaning slightly to one side and was partly buried in the black soil. For a moment the observers got the impression that there were cliffs behind the disc and that beyond them the darkness was blacker and thicker, probably it was a precipice or a slope leading down to the lowlands .... The deafening roar of Tantra's sirens shook the hull of the ship. Erg Noor intended to land close to the newly-discovered ship and was giving warning to any people who might be within the danger zone, that is, within a radius of some thousand metres from the landing place. The terrific roar of the planetary motors could be heard even inside the ship and a cloud of red-hot dust appeared in the screens. The ship's floor began to rise up and then slip backwards. The hydraulic hinges of the landing seats turned them smoothly and soundlessly, keeping them perpendicular to the now vertical floors. The huge jointed landing struts slid out of the ship's hull, straightened out and took the first shock of the landing on an alien world. A shock, a recoil and another shock and Tantra, her bows still swaying, came to a standstill at the same time as the engines cut out. Erg Noor raised his hand to a lever on the control desk that was now directly over his head and released the jointed struts. Slowly, with a number of short jerks, the spaceship's bows sank towards the ground until the hull had assumed its normal, horizontal position. The landing had been accomplished. As usual, the landing had shaken the human organism BO strongly that the astronauts required some time to recover and remained semi-recumbent in their landing seats. They were all held down by an awful weight and were scarcely able to rise to their feet, like patients recovering slowly from a serious illness. The irrepressible biologist, however, had managed to take a sample of the, air. "It's fit to breathe," he said. "I'll take a look at it through the microscope." "Don't bother," said Erg Noor, unfastening the cushions of his landing chair, "we can't go out without a spacesuit. There may be very dangerous spores and viruses on this planet." In the air-lock at the exit to the ship biologically shielded spacesuits and "jumping skeletons" had been prepared in readiness for an exploring party; the "skeletons" were steel, leather-covered frames that were worn over the spacesuits and were fitted with electric motors, springs and shock absorbers to enable the explorers to move about under conditions of excessive weiglit. After six years' travelling through interstellar space every one of them wanted to feel soil, even alien soil, under his feet. Kay Bear, Pour Hyss, Ingrid, Doctor Louma Lasvy and two engineers had to remain on board the vessel to man the radio, searchlights and various measuring and recording instruments. Nisa stood aside from the party with her space helmet in her hands. "Why do you hesitate, Nisa?" the commander called to her as he tested the radio set in the top of his helmet. "Come along to the spaceship!" "I ... I ..." the girl stammered, "I believe it's dead, it's been standing here a long time .... Another catastrophe, another victim claimed by the merciless Cosmos. I know it's inevitable but still it's hard to bear, especially after Zirda and Algrab ...." "Perhaps the death of this spaceship will mean life for us," said Pour Hyss who was busy training a short-focus telescope on the other ship which still remained unlighted. Eight members of the expedition climbed into the air-lock and waited. "Turn on the air!" ordered Erg Noor addressing those who were remaining on the ship and from whom they were now divided by an air-tight wall. When the pressure in the air-lock had risen to ten atmospheres and was higher than that outside, hydraulic jacks opened the hermetically sealed doors. The air pressure in the lock was so great that it almost hurled the people out of the chamber and at the same time prevented anything harmful in the