MacIntyre drew a deep breath. At least the whatever-they-weres were finally talking to him. And in English, too. Which inspired a small, welcome spurt of righteous indignation.
"Your apologies might carry a little more weight if you'd bothered to communicate with me before you kidnaped me," he said coldly.
"I realize that," his captor replied, "but it was impossible."
"Oh? You seem to have overcome your problems rather nicely since." MacIntyre was comforted to find he could still achieve a nasty tone.
"Your communication devices are rather primitive, Commander." The words were almost apologetic. "My tender was not equipped to interface with them."
"You're doing quite well. Why didn't you talk to me?"
"It was not possible. The tender's stealth systems enclosed both you and itself in a field impervious to radio transmissions. It was possible for me to communicate with the tender using my own communication systems, but there was no on-board capability to relay my words to you. Once more, I apologize for any inconvenience you may have suffered."
MacIntyre bit off a giggle at how calmly this Dahak person produced a neat, thousand percent understatement like "inconvenience," and the incipient hysteria of his own sound helped sober him. He ran shaky fingers through his sandy-brown hair, feeling as if he had taken a punch or two too many.
"All right . . . Dahak. You've got me-what do you intend to do with me?"
"I would be most grateful if you would leave your vessel and come to the command deck, Commander."
"Just like that?"
"I beg your pardon?"
"You expect me to step out of my ship and surrender just like that?"
"Excuse me. It has been some time since I have communicated with a human, so perhaps I have been clumsy. You are not a prisoner, Commander. Or perhaps you are. I should like to treat you as an honored guest, but honesty compels me to admit that I cannot allow you to leave. However, I assure you upon the honor of the Fleet that no harm will come to you."
Insane as it all sounded, MacIntyre felt a disturbing tendency to believe it. This Dahak could have lied and promised release as the aliens' ambassador to humanity, but he hadn't. The finality of that "cannot allow you to leave" was more than a bit chilling, but its very openness was a sort of guarantor of honesty, wasn't it? Or did he simply want it to be? But even if Dahak was a congenital liar, he had few options.
His consumables could be stretched to about three weeks, so he could cower in his Beagle that long, assuming Dahak was prepared to let him. But what then? Escape was obviously impossible, so his only real choice was how soon he came out, not whether or not he did so.
Besides, he felt a stubborn disinclination to show how frightened he was.
"All right," he said finally. "I'll come."
"Thank you, Commander. You will find the environment congenial, though you may, of course, suit up if you prefer."
"Thank you." MacIntyre's sarcasm was automatic, but, again, it was only a matter of time before he had to rely on whatever atmosphere the voice chose to provide, and he sighed. "Then I suppose I'm ready."
"Very well. A vehicle is now approaching your vessel. It should be visible to your left."
MacIntyre craned his neck and caught a glimpse of movement as a double-ended bullet-shape about the size of a compact car slid rapidly closer, gliding a foot or so above the floor. It came to a halt under the leading edge of his port wing, exactly opposite his forward hatch, and a door slid open. Light spilled from the opening, bright and welcoming in the dim metal cavern.
"I see it," he said, pleased to note that his voice sounded almost normal again.
"Excellent. If you would be so kind as to board it, then?"
"I'm on my way," he said, and released his harness.
He stood, and discovered yet another strangeness. MacIntyre had put in enough time on Luna, particularly in the three years he'd spent training for the Prometheus Mission, to grow accustomed to its reduced gravity-which was why he almost fell flat on his face when he rose.
His eyes widened. He couldn't be certain, but his weight felt about right for a standard gee, which meant these bozos could generate gravity to order!
Well, why not? The one thing that was crystal clear was that these . . . call them people . . . were far, far ahead of his own twenty-first-century technology, right?
His muscles tightened despite Dahak's reassurances as he opened the hatch, but the air that swirled about him had no immediately lethal effect. In fact, it smelled far better than the inside of the Beagle. It was crisp and a bit chill, its freshness carrying just a kiss of a spicy evergreen-like scent, and some of his tension eased as he inhaled deeply. It was harder to feel terrified of aliens who breathed something like this-always assuming they hadn't manufactured it purely for his own consumption, of course.
It was four-and-a-half meters to the floor, and he found himself wishing his hosts had left gravity well enough alone as he swung down the emergency hand-holds and approached the patiently waiting vehicle with caution.
It seemed innocuous enough. There were two comfortable looking chairs proportioned for something the same size and shape as a human, but no visible control panel. The most interesting thing, though, was that the upper half of the vehicle's hull was transparent-from the inside. From the outside, it looked exactly the same as the bronze-colored floor under his feet.
He shrugged and climbed aboard, noticing that the silently suspended vehicle didn't even quiver under his weight. He chose the right-hand seat, then made himself sit motionless as the padded surface squirmed under him. A moment later, it had reconfigured itself exactly to the contours of his body and the hatch licked shut.
"Are you ready, Commander?" His host's voice came from no apparent source, and MacIntyre nodded.
"Let 'er rip," he said, and the vehicle began to move.
At least there was a sense of movement this time. He sank firmly back into the seat under at least two gees' acceleration. No wonder the thing was bullet-shaped! The little vehicle rocketed across the cavern, straight at a featureless metal wall, and he flinched involuntarily. But a hatch popped open an instant before they hit, and they darted straight into another brightly-lit bore, this one no wider than two or three of the vehicles in which he rode.
He considered speaking further to Dahak, but the only real purpose would be to bolster his own nerve and "prove" his equanimity, and he was damned if he'd chatter to hide the heebie-jeebies. So he sat silently, watching the walls flash by, and tried to estimate their velocity.
It was impossible. The walls weren't featureless, but speed reduced them to a blur that was long before the acceleration eased into the familiar sensation of free-fall, and MacIntyre felt a sense of wonder pressing the last panic from his soul. This base dwarfed the vastest human installation he'd ever seen-how in God's name had a bunch of aliens managed an engineering project of such magnitude without anyone even noticing?
There was a fresh spurt of acceleration and a sideways surge of inertia as the vehicle swept through a curved junction and darted into yet another tunnel. It seemed to stretch forever, like the one that had engulfed his Beagle, and his vehicle scooted down its very center. He kept waiting to arrive, but it was a very, very long time before their headlong pace began to slow.
His first warning was the movement of the vehicle's interior. The entire cockpit swiveled smoothly, until he was facing back the way he'd come, and then the drag of deceleration hit him. It went on and on, and the blurred walls beyond the transparent canopy slowed. He could make out details once more, including the maws of other tunnels, and then they slowed virtually to a walk. They swerved gently down one of those intersecting tunnels, little wider than the vehicle itself, then slid alongside a side opening and stopped. The hatch flicked soundlessly open.
"If you will debark, Commander?" the mellow voice invited, and MacIntyre shrugged and stepped down onto what looked for all the world like shag carpeting. The vehicle closed its hatch behind him and slid silently backwards, vanishing the way it had come.
"Follow the guide, please, Commander."
He looked about blankly for a moment, then saw a flashing light globe hanging in mid-air. It bobbed twice, as if to attract his attention, then headed down a side corridor at a comfortable pace.
A ten-minute walk took him past numerous closed doors, each labeled in a strangely attractive, utterly meaningless flowing script, and air as fresh and cool as the docking cavern's blew into his face. There were tiny sounds in the background, so soft and unintrusive it took him several minutes to notice them, and they were not the mechanical ones he might have expected. Instead, he heard small, soft stirrings, like wind in leaves or the distant calls of birds, forming a soothing backdrop that helped one forget the artificiality of the environment.
But then the corridor ended abruptly at a hatch of that same bronze-colored alloy. It was bank-vault huge, and it bore the first ornamentation he'd seen. A stupendous, three-headed beast writhed across it, with arched wings poised to launch it into flight. Its trio of upthrust heads faced in different directions, as if to watch all approaches at once, and cat-like forefeet were raised before it, claws half-extended as if to simultaneously proffer and protect the spired-glory starburst floating just above them.
MacIntyre recognized it instantly, though the enormous bas-relief dragon was neither Eastern nor Western in interpretation, and he paused to rub his chin, wondering what a creature of Earthly mythology was doing in an extra-terrestrial base hidden on Earth's moon. But that question was a strangely distant thing, surpassed by a greater wonder that was almost awe as the huge, stunningly life-like eyes seemed to measure him with a calm, dispassionate majesty that might yet become terrible wrath if he transgressed.
He never knew precisely how long he stood staring at the dragon and stared at by it, but in the end, his light-globe guide gave a rather impatient twitch and drifted closer to the hatch. MacIntyre shook himself and followed with a wry half-smile, and the bronze portal slid open as he approached. It was at least fifteen centimeters thick, yet it was but the first of a dozen equally thick hatches, forming a close-spaced, immensely strong barrier, and he felt small and fragile as he followed the globe down the silently opening passage. The multi-ply panels licked shut behind him, equally silently, and he tried to suppress a feeling of imprisonment. But then his destination appeared before him at last and he stopped, all other considerations forgotten.
The spherical chamber was larger than the old war room under Cheyenne Mountain, larger even than main mission control at Shepherd, and the stark perfection of its form, the featureless sweep of its colossal walls, pressed down upon him as if to impress his tininess upon him. He stood on a platform thrust out from one curving wall-a transparent platform, dotted with a score of comfortable, couch-like chairs before what could only be control consoles, though there seemed to be remarkably few read-outs and in-puts-and the far side of the chamber was dominated by a tremendous view screen. The blue-white globe of Earth floated in its center, and the cloud-swirled loveliness caught at MacIntyre's throat. He was back in his first shuttle cockpit, seeing that azure and argent beauty for the first time, as if the mind-battering incidents of the past hour had made him freshly aware of his bond with all that planet was and meant.
"Please be seated, Commander." The soft, mellow voice broke into his thoughts almost gently, yet it seemed to fill the vast space. "Here." The light globe danced briefly above one padded chair-the one with the largest console, at the very lip of the unrailed platform-and he approached it gingerly. He had never suffered from agoraphobia or vertigo, but it was a long, long way down, and the platform was so transparent he seemed to be striding on air itself as he crossed it.
His "guide" disappeared as he settled into the chair, not even blinking this time as it conformed to his body, and the voice spoke again.
"Now, Commander, I shall try to explain what is happening."
"You can start," MacIntyre interrupted, determined to be more than a passive listener, "by explaining how you people managed to build a base this size on our moon without us noticing."
"We built no base, Commander."
MacIntyre's green eyes narrowed in irritation.
"Well somebody sure as hell did," he growled.
"You are suffering under a misapprehension, Commander. This is not a base 'on' your moon. It is your moon."
For just an instant, MacIntyre was certain he'd misunderstood.
"What did you say?" he asked finally.
"I said this is your moon, Commander. In point of fact, you are seated on the command bridge of a spacecraft."
"A spacecraft? As big as the moon?" MacIntyre said faintly.
"Correct. A vessel some three thousand-three-two-oh-two-point-seven-nine-five, to be precise-of your kilometers in diameter."
"But-" MacIntyre's voice died in shock. He'd known the installation was huge, but no one could replace the moon without someone noticing, however advanced their technology!
"I don't believe it," he said flatly.
"Nonetheless, it is true."
"It's not possible," MacIntyre said stubbornly. "If this thing is the size you say, what happened to the real moon?"
"It was destroyed," his informant said calmly. "With the exception of sufficient of its original material to make up the negligible difference in diameter, it was dropped into your sun. It is standard Fleet procedure to camouflage picket units or any capital ship that may be required to spend extended periods in systems not claimed by the Imperium."
"You camouflaged your ship as our moon? That's insane!"
"On the contrary, Commander. A planetoid-class starship is not an easy object to hide. Replacing an existing moon of appropriate size is by far the simplest means of concealment, particularly when, as in this case, the original surface contours are faithfully recreated as part of the procedure."
"Preposterous! Somebody on Earth would have noticed something going on!"
"No, Commander, they would not. In point of fact, your species was not on Earth to observe it."
"What?!"
"The events I have just described took place approximately fifty-one thousand of your years ago," his informant said gently.
MacIntyre sagged around his bones. He was mad, he thought calmly. That was certainly the most reasonable explanation.
"Perhaps it would be simpler if I explained from the beginning rather than answering questions," the voice suggested.
"Perhaps it would be simpler if you explained in person!" MacIntyre snapped, suddenly savage in his confusion.
"But I am explaining in person," the voice said.
"I mean face-to-face," MacIntyre grated.
"Unfortunately, Commander, I do not have a face," the voice said, and MacIntyre could have sworn he heard wry amusement in it. "You see, in a sense, you are sitting inside me."
"Inside-?" MacIntyre whispered.
"Precisely, Commander. I am Dahak, the central command computer of the Imperial ship-of-the-line Dahak."
"Gaaa," MacIntyre said softly.
"I beg your pardon?" Dahak said calmly. "Shall I continue?"
MacIntyre gripped the arms of his chair and closed his eyes, counting slowly to a hundred.
"Sure," he said at last, opening his eyes slowly. "Why don't you do that?"
"Very well. Please observe the visual display, Commander."
Earth vanished, and another image replaced it. It was a sphere, as bronze-bright as the cylinder that had captured his Beagle, but despite the lack of any reference scale, he knew it was far, far larger.
The image turned and grew, and details became visible, swelling rapidly into vast blisters and domes. There were no visible ports, and he saw no sign of any means of propulsion. The hull was completely featureless but for those smoothly rounded protrusions . . . until its turning motion brought him face-to-face with a tremendous replica of the dragon that had adorned the hatch. It sprawled over one face of the sphere like a vast ensign, arrogant and proud, and he swallowed. It covered a relatively small area of the hull, but if that sphere was what he thought it was, this dragon was about the size of Montana.
"This is Dahak," the voice told him, "Hull Number One-Seven-Seven-Two-Nine-One, an Utu-class planetoid of Battle Fleet, built fifty-two thousand Terran years ago in the Anhur System by the Fourth Imperium."
MacIntyre stared at the screen, too entranced to disbelieve. The image of the ship filled it entirely, seeming as if it must fall from the display and crush him, and then it dissolved into a computer-generated schematic of the monster vessel. It was too stupendous for him to register much, and the schematic changed even as he watched, rolling to present him with an exploded polar view of deck after inconceivable deck as the voice continued.
"The Utu-class were designed both for the line of battle and for independent, long-term survey and picket deployment, with core crews of two hundred and fifty thousand. Intended optimum deployment time is twenty-five Terran years, with provision for a sixty percent increase in personnel during that period. Maximum deployment time is virtually unlimited, assuming crew expansion is contained.
"In addition to small, two-seat fighters that may be employed in either attack or defense, Dahak deploys sublight parasite warships massing up to eighty thousand tons. Shipboard weaponry centers around hyper-capable missile batteries backed up by direct-fire energy weapons. Weapon payloads range from chemical warheads through fusion, anti-matter, and gravitonic warheads. Essentially, Commander, this ship could vaporize your planet."
"My God!" MacIntyre whispered. He wanted to disbelieve-God, how he wanted to!-but he couldn't.
"Sublight propulsion," Dahak went on, ignoring the interruption, "relies upon phased gravitonic progression. Your present terminology lacks the referents for an accurate description, but for purposes of visualization, you may consider it a reactionless drive with a maximum attainable velocity of fifty-two-point-four percent that of light. Above that velocity, a vessel of this size would lose phase lock, and be destroyed.
"Unlike previous designs, the Utu-class do not rely upon multi-dimensional drives-what your science fiction writers have dubbed 'hyper drives,' Commander-for faster-than-light travel. Instead, this ship employs the Enchanach Drive. You may envision it as the creation of converging artificially-generated 'black holes,' which force the vessel out of phase with normal space in a series of instantaneous transpositions between coordinates in normal space. Under Enchanach Drive, dwell time in normal space between transpositions is approximately point-seven-five Terran femtoseconds.
"The Enchanach Drive's maximum effective velocity is approximately Cee-six factorial. While this is lower than that of the latest hyper drives, Enchanach Drive vessels have several tactical advantages. Most importantly, they may enter, maneuver in, and leave a supralight state at will, whereas hyper drive vessels may enter and leave supralight only at pre-selected coordinates.
"Power generation for the Utu-class-"
"Stop." MacIntyre's single word halted Dahak's voice instantly, and he rubbed his eyes slowly, wishing he could wake up at home in bed.
"Look," he said finally, "this is all very interesting, uh, Dahak." He felt a bit silly speaking to a machine, even one like this. "But aside from convincing me that this is one mean mother of a ship, it doesn't seem very pertinent. I mean, I'm impressed as hell, but what does anyone need with a ship like this? Thirty-two hundred kilometers in diameter, eighty-thousand-ton parasite warships, two-hundred-thousand-man crews, vaporize planets. . . . Jesus H. Christ! What is this 'Fourth Imperium'? Who in God's name does it need that kind of firepower against, and what the hell is it doing here?!"
"I will explain, if I may resume my briefing," Dahak said calmly, and MacIntyre snorted, then waved for it to continue. "Thank you, Commander.
"You are correct: technical data may be left to the future. But for you to understand my difficulty-and the reason it is your difficulty, as well-I must summarize some history. Please understand that much of this represents reconstruction and deduction based upon very scant physical evidence.
"Briefly, the Fourth Imperium is a political unit, originating upon the Planet Birhat in the Bia System some seven thousand years prior to Dahak's entry into your solar system. As of that time, the Imperium consisted of some fifteen hundred star systems. It is called the Fourth Imperium because it is the third such interstellar entity to exist within recorded history. The existence of at least one prehistoric imperium, designated the 'First Imperium' by Imperial historians, has been conclusively demonstrated, although archaeological evidence suggests that, in fact, a minimum of nine additional prehistoric imperia intervened between the First and Second Imperium. All, however, were destroyed in part or in whole by the Achuultani."
A formless chill tingled down MacIntyre's spine.
"And just what were the Achuultani?" he asked, trying to keep his strange, shadowy emotions out of his voice.
"Available data are insufficient for conclusive determinations," Dahak replied. "Fragmentary evidence suggests that the Achuultani are a single species, possibly of extra-galactic origin. Even the name is a transliteration of a transliteration from an unattested myth of the Second Imperium. More data may have been amassed during actual incursions, but most such information was lost in the general destruction attendant upon such incursions or during the reconstruction that followed them. What has been retained pertains more directly to tactics and apparent objectives. On the basis of that data, historians of the Fourth Imperium conclude that the first such incursion occurred on the close order of seventy million Terran years ago."
"Seventy mil-?!" MacIntyre chopped himself off. No species could survive over such an incredible period. Then again, the moon couldn't be an alien starship, could it? He nodded jerkily for Dahak to continue.
"Supporting evidence may be found upon your own planet, Commander," the computer said calmly. "The sudden disappearance of terrestrial dinosaurs at the end of your Mesozoic Era coincides with the first known Achuultani incursion. Many Terran scientists have suggested that this may have been the consequence of a massive meteor impact. My own observations suggest that they are correct, and the Achuultani have always favored large kinetic weapons."
"But . . . but why? Why would anyone wipe out dinosaurs?!"
"The Achuultani objective," Dahak said precisely, "appears to be the obliteration of all competing species, wherever situated. While it is unlikely that terrestrial dinosaurs, who were essentially a satisfied life form, might have competed with them, that would not prevent them from striking the planet as a long-term precaution against the emergence of a competitor. Their attention was probably drawn to Earth by the presence of a First Imperium colony, however. I base this conclusion on data that indicate the existence of a First Imperium military installation on your fifth planet."
"Fifth planet?" MacIntyre parroted, overloaded by what he was hearing. "You mean . . . ?"
"Precisely, Commander: the asteroid belt. It would appear they struck your fifth planet a bit harder than Earth, and it was much smaller and less geologically stable to begin with."
"Are you sure?"
"I have had sufficient time to amass conclusive observational data. In addition, such an act would be consistent with recorded Achuultani tactics and the deduced military policies of the First Imperium, which apparently preferred to place system defense bases upon centrally-located non-life-bearing bodies."
Dahak paused, and MacIntyre sat silent, trying to grasp the sheer stretch of time involved. Then the computer spoke again.
"Shall I continue?" it asked, and he managed another nod.
"Thank you. Imperial analysts speculate that the periodic Achuultani incursions into this arm of the galaxy represent sweeps in search of potential competitors-what your own military might term 'search and destroy' missions-rather than attempts to expand their imperial sphere. The Achuultani culture would appear to be extremely stable, one might almost say static, for very few technological advances have been observed since the Second Imperium. The precise reasons for this apparent cultural stasis and for the widely varying intervals between such sweeps are unknown, as is the precise locus from which they originate. While some evidence does suggest an extra-galactic origin for the species, pattern analysis suggests that the Achuultani currently occupy a region far to the galactic east. This, unfortunately, places Sol in an extremely exposed position, as your solar system lies on the eastern fringe of the Imperium. In short, the Achuultani must pass Sol to reach the Imperium.
"This has not mattered to your planet of late, as there has been nothing to attract Achuultani attention to this system since the end of the First Incursion. That protection no longer obtains, however. Your civilization's technical base is now sufficiently advanced to produce an electronic and neutrino signature that their instruments cannot fail to detect."
"My God!" MacIntyre turned pale as the implications struck home.
"Precisely, Commander. Your sun's location also explains Dahak's presence in this region. Dahak's mission was to picket the Noarl System, directly in the center of the traditional Achuultani incursion route. Unfortunately-or, more precisely, by hostile design-Dahak suffered catastrophic failure of a major component of its Enchanach Drive while en route to its intended station, and Senior Fleet Captain Druaga was forced to stop here for repairs."
"But if the damage was repairable, why are you still here?"
"Because there was, in fact, no damage." Dahak's voice was as measured as ever, but MacIntyre's hyper-sensitive mind seemed to hear a hidden core of anger. "The 'failure' was contrived by Dahak's chief engineer, Fleet Captain (Engineering) Anu, as the opening gambit in a mutiny against Fleet authority."
"Mutiny?"
"Mutiny. Fleet Captain Anu and a minority of sympathizers among the crew feared that a new Achuultani incursion was imminent. As an advanced picket directly in the path of any such incursion, Dahak would very probably be destroyed. Rather than risk destruction, the mutineers chose to seize the ship and flee to a distant star in search of a colonizable planet."
"Was that feasible?" MacIntyre asked in a fascinated tone.
"It was. Dahak's cruising radius is effectively unlimited, Commander, with technical capabilities sufficient to inaugurate a sound technology base on any habitable world, and the crew would provide ample genetic material for a viable planetary population. Moreover, the simulation of a major engineering failure was a cleverly conceived tactic to prevent detection of the mutiny until the mutineers could move beyond possible interception by other Fleet units. Fleet Captain Anu knew that Senior Fleet Captain Druaga would transmit a malfunction report. If no further word was received, Fleet Central's natural assumption would be that the damage had been sufficient to destroy the ship."
"I see. But I gather from your choice of tense that the mutiny failed?"
"Incorrect, Commander."
"Then it succeeded?" MacIntyre asked, scratching his head in puzzlement.
"Incorrect," Dahak said again.
"Well it must have done one or the other!"
"Incorrect," Dahak said a third time. "The mutiny, Commander, has not yet been resolved."
MacIntyre sighed and leaned back in resignation, crossing his arms. Dahak's last statement was preposterous. Yet his concept of words like "preposterous" was acquiring a certain punch-drunk elasticity.
"All right," he said finally. "I'll humor you. How can a mutiny that started fifty thousand years ago still be unresolved?"
"In essence," Dahak said, seemingly impervious to MacIntyre's irony, "it is a condition of deadlock. Senior Fleet Captain Druaga instructed Comp Cent to render the interior of the ship uninhabitable in order to force evacuation of the vessel by mutineers and loyalists alike, after which Dahak's weaponry would command the situation. Only loyal officers would be permitted to reenter the vessel once the interior had been decontaminated, at which point Fleet control would be restored.
"Unknown to Senior Fleet Captain Druaga, however, Fleet Captain Anu had implanted contingency instructions in his back-up engineering computers and isolated them from Comp Cent's net. Those instructions were intended to destroy Dahak's internal power rooms, with the ultimate goal of depriving Comp Cent of power and so destroying it. As chief engineer, and armed with complete knowledge of how the sabotage had been achieved, it would have been comparatively simple for him to effect repairs and assume control of the ship.
"When Comp Cent implemented Senior Fleet Captain Druaga's orders, all loyal personnel abandoned ship in lifeboats. Fleet Captain Anu, however, had secretly prepared several sublight parasites for the apparent purpose of marooning any crewmen who refused to accept his authority. In the event, his own followers made use of those transports and a small number of armed parasites when they evacuated Dahak, with the result that they carried to Earth a complete and functional, if limited, technical base. The loyalists, by contrast, had only the emergency kits of their lifeboats.
"This would not have mattered if Fleet Captain Anu's sabotage programs had not very nearly achieved their purpose. Before Comp Cent became aware of and deactivated them, three hundred and ten of Dahak's three hundred and twelve fusion power plants had been destroyed, dropping Dahak's internal power net below minimal operational density. Sufficient power remained to implement a defensive fire plan as per Senior Fleet Captain Druaga's orders, but not to simultaneously decontaminate the interior and effect emergency repairs, as well. As a result, Comp Cent was unable to immediately and fully execute its orders. It was necessary to repair the damage before Comp Cent could decontaminate, yet repairs amounted to virtual rebuilding and required more power than remained. Indeed, power levels were so low that it was impossible even to operate Dahak's core tap. This, in turn, meant that emergency power reserves were quickly drained and that it was necessary to spend extended periods rebuilding those reserves between piecemeal repair activities.
"Because of these extreme conditions, Comp Cent was dysfunctional for erratic but extended periods, though automatic defensive programs remained operational. Scanner recordings indicate that seven mutinous parasites were destroyed during the repair period, but each defensive action drained power levels still further, which, in turn, extended Comp Cent's dysfunctional periods and further slowed repairs by extending the intervals required to rebuild reserve power to permit reactivation of sufficient of Comp Cent to direct each new stage of work.
"Because of this, approximately eleven Terran decades elapsed before Comp Cent once more became fully functional, albeit at marginal levels, and so was able to begin decontamination. During that time, the lifeboats manned by loyal personnel had become inoperable, as had all communication equipment aboard them. As a result, it was not possible for any loyalist to return to Dahak."
"Why didn't you just pick them up?" MacIntyre demanded. "Assuming any of them were still alive, that is."
"Many remained alive." There was a new note in Dahak's voice. Almost a squirmy one, as if it were embarrassed. "Unfortunately, none were bridge officers. Because of that, none carried Fleet communicator implants, making it impossible to contact them. Without that contact, command protocols in Comp Cent's core programming severely limited Dahak's options."
The voice paused, and MacIntyre wrinkled his brow. Command protocols?
"Meaning what?" he asked finally.
"Meaning, Commander, that it was not possible for Comp Cent to consider retrieving them," Dahak admitted, and the computer's embarrassment was now unmistakable. "You must understand that Comp Cent had never been intended by its designers to function independently. While self-aware in the crudest sense, Comp Cent then possessed only very primitive and limited versions of those qualities which humans term 'imagination' and 'initiative.' In addition, strict obedience to the commands of lawful superiors is thoroughly-and quite properly-embedded in Comp Cent's core programs. Without an order to send tenders to retrieve loyal officers, Comp Cent could not initiate the action; without communication, no loyal officer could order Comp Cent to do so. Assuming, of course, that any such loyal officers had reason to believe that Dahak remained functional to retrieve them."
"Damn!" MacIntyre said softly. "Catch twenty-two with a vengeance."
"Precisely, Commander." Dahak sounded relieved to have gotten that bit of explanation behind it.
"But the mutineers still had a functional tech base," MacIntyre mused. "So what happened to them?"
"They remain on Earth," Dahak said calmly, and MacIntyre bolted upright.
"You mean they died there, don't you?" he asked tensely.
"Incorrect, Commander. They-and their parasites-still exist."
"That's ridiculous! Even assuming everything you've told me so far is true, we'd have to be aware of the presence of an advanced alien civilization!"
"Incorrect," Dahak said patiently. "Their installation is and has been concealed beneath the surface of your continent of Antarctica. For the past five thousand Terran years, small groups of them have emerged to mingle briefly with your population, then returned to their enclave to rejoin the bulk of their fellows in stasis-suspended animation, in your own terms."
"Damn it, Dahak!" MacIntyre exploded. "Are you telling me bug-eyed monsters can stroll around Earth and nobody even notices?!"
"Negative, Commander. The mutineers are not 'bug-eyed monsters.' On the contrary; they are humans."
Colin MacIntyre slumped back into his chair, eyes suddenly full of horror.
"You mean . . . ?" he whispered.
"Precisely, Commander. Every Terran human is descended from Dahak's crew."