Ambulance Ship sg-4

by James White

  “I understand. Meet at the lock in fifteen minutes.”

  The conversation of the party investigating the alien ship would be relayed to the Casualty Deck and recorded by Dodds in Control, and the three-view projection of the vessel would be updated as new data became available. But when they were in the Rhabwar’s lock and about to launch themselves towards the other ship, Fletcher touched helmets with Conway-signifying that he wanted to talk without being overheard on the suit radio frequency.

  “I am having second thoughts about the number of people making the initial investigation and entry,” the Captain said, his voice muffled and distorted by its passage through the fabric of their helmets. “A certain amount of caution is indicated here. That ship appears to be undamaged and operational. It occurred to me that the crew rather than the ship are in a distressed condition and that their problem might be psychological rather than medical-they might be in a disturbed and non-rational state. So much so that they may react badly and possibly Jump if too many strange creatures started clambering all over their hull.”

  Now he has delusions of being a xenopsychologist! Conway thought. “You have a point, Captain. But Prilicla and I will not clamber, we will look carefully and touch nothing without first reporting what we have found.”

  They began by examining the underside of the disk-shaped vessel. It had to be the underside, Fletcher insisted, because there were four propulsion orifices grouped closely around its diametrical center. He was pretty sure the holes were the mouths of jet venturis because of the heat discoloration and pitting that surrounded them. From the position and direction of the thrusters it was clear that the ship’s direction of travel was along its vertical axis, although the Captain thought that it would be able to skim edge on for aerodynamic maneuvering in an atmosphere.

  In addition to the burned areas around the jet orifices there was a large, circular patch of roughened metal centered on the underside and extending out to approximately one quarter of the ship’s radius. There were numerous other roughened areas, only a few inches across for the most part and of various shapes and sizes, scattered over the underside and around the rim. These rough areas puzzled Fletcher because they were really rough-rough enough to snag his gauntlets and pose a danger to anyone wearing a lightweight suit. But he was chiefly puzzled because the rest of the ship looked as if it had been put together by watchmakers.

  There were three rough areas which corresponded with the swellings on the rim of the vessel and which were almost certainly the housings of its hypergenerators.

  When they moved to the upper surface they found more tiny blemishes, raised very slightly above the surrounding surface, which seemed to be some kind of imperfection in the metal plating. Fletcher said they reminded him of corrosion incrustations except for the fact that there was no difference between their color and the color of the metal they had attacked.

  Nowhere was there any evidence of transparent material being used in the ship’s construction. None of its communications antennae or sensory receptors had been deployed, so, presumably, this equipment had been retracted before the distress beacon had been released, and was concealed below some of the ship’s incredibly well fitting access panels and covers-a few of which had been distinguishable only because of slight color differences in the metal panels and the surrounding hull plating. After searching and straining their eyes for nearly two hours, they still found no sign of anything resembling an external actuator for any of these panels. The ship was locked up tight, and the Captain could give no estimate of the time needed to effect an entry.

  “This is supposed to be a rescue attempt and not a leisurely scientific investigation.” Conway sounded exasperated. “Can we force an entry?”

  “Only as a last resort,” the Captain replied. “We do not want to risk offending the inhabitants until we are sure their condition is desperate. We will concentrate our search for an entry port on the rim. The flat, disk-like configuration of the ship, which presents its upper surface to the direction of travel, suggests that its crew would enter via the rim. Its upper surface should, I feel sure, contain the control and living compartments and, hopefully, the survivors.”

  “Right,” agreed Conway. “Prilicla, concentrate your empathic faculty topside while we search the rim. Again.”

  The minutes flew by without anyone reporting anything but negative results. Impatiently, Conway guided his suit along the edge of the rim until he was hanging just a few meters from Prilicla’s position topside. On impulse, he energized his boot and wrist magnets, and when they had pulled him gently against the hull, he freed one foot and kicked hard against the metal plating three times.

  Immediately, the suit frequency went into a howl of oscillation as everyone tried to report noise and vibration in their sensor pads at the same time. When silence had returned, Conway spoke.

  “Sorry. I should have warned you I was going to do that,” he said, knowing that if he had done so there would have been an interminable argument with the Captain, ending in refusal of permission. “We’re using up too much time. This is a rescue mission, dammit, and we don’t even know if there is anyone to rescue. Some kind of response is needed from inside the ship. Prilicla, did we get anything?”

  “No, friend Conway,” said the empath. “There is no response to your striking the hull, and no evidence of conscious mentating or emoting. But I cannot yet be sure that there are no survivors. I have the feeling that the total emotional radiation in the vicinity of the ship is not made up solely by the four Earth-humans present and myself.”

  “I see,” said Conway. “In your usual polite and self-effacing fashion you are telling us that we are stirring up too much emotional mud and that we should clear the area so that you can work without interference. How much distance will you need, Doctor?”

  “If everyone moves back to the hull of our ship,” said Prilicla, “that would be more than adequate, friend Conway. It would also assist me if they engaged in cerebral rather than emotional thinking, and switched off their suit radios.”

  For what seemed to be a very long time they stood together on the wing of the Rhabwar with their backs to the alien ship and Prilicla. Conway had told them that if they were to watch the empath at work they would probably feel anxiety or impatience or disappointment if it did not find a survivor quickly, and any kind of strong feeling would cause emotional interference as far as Prilicla was concerned. Conway did not know what form of cerebral exercise the others were performing to clear their minds of troublesome emotional radiation, but he decided to look around him at the star clusters embedded in their billows and curtains of glowing star stuff. Then the thought came that he was exposing his eyes and his mind to too much sheer splendor, and the feeling of wonder might also be disturbing to an emotion-sensitive.

  Suddenly the Captain, who had been sneaking an occasional look at Prilicla, began pointing towards the other ship. Conway switched on his radio in time to hear Fletcher say, “I think we can start emoting again.”

  Conway swung round to see the spacesuited figure of Prilicla hanging above the metal landscape of the ship like a tiny moon while it directed a spray of fluorescent marker paint at an area midway between the center and the rim. The painted area was already about three meters across and the empath was still extending it.

  “Prilicla?” called Conway.

  “Two sources, friend Conway,” the Cinrusskin reported. “Both are so faint that I cannot pinpoint them with any degree of accuracy other than to say they are somewhere beneath the marked area of hull. The emotional radiation in both cases is characteristic of the unconscious and severely weakened subject. I would say they are in worse shape than the Dwerlan we rescued recently. They are very close to death.”

  Before Conway could reply, the Captain said harshly, “Right, that’s it. Haslam, Chen, break out the portable airlock and cutting gear. This time we’ll search the rim in pairs, except for Doctor Prilida, with one man doing the looking with his light switched
off while the other directs side lighting onto the plating so as to throw any joins into relief. Try to find anything that looks like a lock entrance, and cut a way in if we can’t solve the combination. Search carefully but quickly. If we can’t find a way through the rim inside half an hour, we’ll cut through the upper hull in the center of the marked area and hope we don’t hit any control linkages or power lines. Have you anything to add, Doctor?”

  “Yes,” said Conway. “Prilicla, is there anything else, anything at all, you can tell me about the condition of the survivors?”

  He was already on the way back to the distressed ship with the Captain slightly ahead of him, and the little empath had attached itself magnetically to the marked area of hull.

  “My data is largely negative, friend Conway,” said Prilicla, “and comprises supposition rather than fact. Neither being is registering pain, but both share feelings suggesting starvation, asphyxiation and the need of something that is vital to the continuance of life. One of the beings is trying very hard to stay alive while the other appears merely to be angry. The emotional radiation is so tenuous that I cannot state with certainty that the beings are intelligent life-forms, but the indications are that the angry one is probably a nonintelligent lab animal or ship’s pet. These are little more than guesses, friend Conway, and I could be completely wrong.”

  “I doubt that,” said Conway. “But those feelings oUstarvation and strangulation puzzle me. The ship is undamaged, so food and air supplies should be available.”

  “Perhaps, friend Conway,” Prilicla replied timidly, “they are in the terminal stages of a respiratory disease, rather than suffering from gross physical injury.”

  “In which case,” said Murchison, joining the conversation from the Rhabwar, “I will be expected to brew up something efficacious against a dose of extraterrestrial pneumonia. Thank you, Doctor Prilicla!”

  The portable airlock-a fat, lightweight metal cylinder swathed in the folds of transparent plastic that would form its antechamber-was positioned close to the alien ship. While Prilicla remained as physically close as possible to the survivors, Chen and Haslam joined the Captain and Conway in a final search for a fine line on the rim plating that might enclose an entry port.

  He tried to be thorough without wasting time, because Prilicla did not think there was any time to waste as far as the two survivors were concerned. But the ship was close to eighty meters in diameter and they had an awful lot of rim to search in half an hour. Still, there had to be a way in, and their main problem was that, despite the many rough and incrusted patches, the ship’s structure represented an incredibly fine piece of precision engineering.

  “Is it possible,” Conway asked suddenly, “that the reason for the ship’s distress is these rough patches?” The side of his helmet was close to the hull as he directed his spotlight at an acute angle onto the area that Fletcher was scanning for joins. “Perhaps the troubles of the survivors are a secondary effect. Maybe the unnaturally tight fit of the plating and panels is meant as a protection against attack by some kind of galloping corrosion native to the survivors’ home planet.”

  There was a lengthy silence, then Fletcher said, “That is a very disquieting idea, Doctor, especially since your galloping corrosion might infect our ship. But I don’t think so. The incrusted patches appear to be made of the same material as the underlying metal and not a coating of corrosion. As well, they appear to avoid rather than attack the joins.

  Conway did not reply. At the back of his mind an idea had begun to stir and take shape, but it dissolved abruptly as Chen’s voice sounded excitedly in his phones.

  “Sir, over here!”

  Chen and Haslam had found what seemed to be a large, circular hatch or section of plating approximately a meter in diameter, and they were already spraying the circumference with marker paint when Fletcher, Prilicla and Conway arrived. There were no rough patches inside the circular line or outside it except for two tiny rough spots set side by side just beyond the lower edge of the circle. Closer examination showed a five-inch-diameter circle enclosing the two rough patches.

  “That,” said Chen, trying hard to control his excitement, “could be some kind of actuator control for the hatch.”

  “You’re probably right,” said the Captain. “Good work, both of you. Now, set up the portable lock around this hatch. Quickly.” He placed his sensor plate against the metal. “There is a large empty space behind this hatch, so it is almost certainly an entry lock. If we can’t open it manually we’ll cut our way in.”

  “Prilicla?” called Conway.

  “Nothing, friend Conway,” said the empath. “The survivors’ radiation is much too faint to be detectable above the other sources in the area.”

  “Casualty Deck,” Conway said. When Murchison responded, he went on quickly: “Considering the condition of the survivors, would you mind coming over here with the portable analyzer? Atmosphere samples will be available shortly. It would save some time if we didn’t have to send them to you for analysis, and shorten the time needed to prepare the litter for the casualties.”

  “I was expecting you to think of that,” Murchison replied briskly. “Ten minutes.”

  Conway and the Captain ignored the loose folds of transparent fabric and the light-alloy seal that bumped weightlessly against their backs while Haslam and Chen drew the material into position round the entry lock and attached it to the hull with instant sealant. Fletcher concentrated on the lock-actuator mechanism-he insisted that the disk could be nothing but a lock-and described everything he thought and did for the benefit of Dodds, who was recording on the Rhabwar.

  “The two rough areas inside the disk appear not to be corrosion,” he said, “but in my opinion are patches of artificially roughened metal designed to give traction to the space-gauntleted mandibles or manipulatory appendages of the ship’s crew- “I’m not so sure of that,” said Conway. The idea he had had at

  the back of his mind was taking shape again.

  “—to ease the operation of the actuator, this disk, that is,” Fletcher continued, ignoring him. “Now, the disk may be turned clockwise or counterclockwise, screwed in or out on threads in either direction, pulled outwards, or pressed inwards and turned one way or the other into a locking position …

  The Captain performed the various twisting and pressing movements as he described them, but with no effect. He increased the power on his foot and wrist magnets so as to hold himself more firmly against the hull, placed his gauntleted thumb and forefinger on the two rough spots and twisted even harder. His hand slipped, so that momentarily all of the pressure was on his thumb and one rough area. That half of the disk tilted inwards while the other side moved out. The Captain’s face became very red behind his visor.

  … or, of course, it might turn out to be a simple rocker switch,” he added.

  Suddenly the large, circular hatch began to swing inwards, and the ship’s atmosphere rushed out through the opening seal. The fabric of the portable lock they had attached to the hull bellied outwards and the metal cylinder of its double seal drew away from them, allowing them to stand up inside a large, inflated hemisphere of transparent plastic. As they were watching the hatch move inwards and upwards to the ceiling of the ship’s lock chamber, a short loading ramp was slowly extruded. It curved downwards to stop at the position that would have corresponded to ground level had the ship been on the ground.

  Murchison had arrived and had been watching them through the portable lock fabric. “The air that escaped was from the lock chamber, because the flow has already stopped. If I could measure the volume of that lock chamber and our own portable job, I could calculate the aliens’ atmospheric pressure requirements as well as analyze the constituent gases m coming in.”

  “Obviously a boarding hatch,” said the Captain. “They should have a smaller, less complicated lock for space EVAs and—”

  “No,” said Conway, quietly but very firmly. “These people would not go in for extravehi
cular activity in space. They would be terrified of losing themselves.”

  Murchison looked at him without speaking, and the Captain said impatiently, “I don’t understand you, Doctor. Prilicla, was there any emotional response from the survivors when we opened the lock?”

  “No, friend Fletcher,” the empath replied. “Friend Conway is emoting too strongly for the survivors to register with me.”

  The Captain stared at Conway for a moment, then he said awkwardly, “Doctor, my specialty has been the study of extraterrestrial mechanisms, control systems and communication devices, and my wide experience in this area led to my appointment to the ambulance ship project. The reason why I was able to operate this lock mechanism so quickly was partly because of my expertise and partly through sheer luck. So there is no reason why you, Doctor, whose expertise lies in a different area, should feel irritated just because—”

  “My apologies for interrupting, friend Fletcher,” said Prilicla timidly, “but he is not irritated. Friend Conway is feeling wonder, with great intensity.”

  Murchison and the Captain were both staring at him. Neither asked the obvious question, but he answered it anyway: “What would make a blind race reach for the stars?”

  It took several minutes to make the Captain see that Conway’s theory fitted all the facts as they knew them, but even then Fletcher was not completely convinced that the crew of the ship was blind. It was true that the rough areas on the vessel’s underside, particularly those in the area of the thrusters, would give a being possessing only the sense of touch a strong tactual warning of danger, and that the smaller rough areas placed at regular intervals around the rim were probably the coverings of the less dangerous altitude jets. The smallest and most numerous patches of what at first they had thought was corrosion could well be opening or maintenance instructions on access panels, written in an extraterrestrial equivalent of Braille.