Charles Sheffield - The Compleat McAndrew

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THE BRAIN OF AN EINSTEIN --
THE MIND OF AN ENGINEER
Presenting the space adventures of Arthur Morton McAndrew, space-time expert and scientist
extraordinaire, and his long-suffering companion, spaceship skipper Jeanie Roker. Jeanie first met
McAndrew on a routine run to Titan and quickly learned he was a genius of the caliber of Newton or
Einstein. When McAndrew invented a space drive that let frail humans survive hundreds of gravities
of acceleration, he disappeared while testing it, and Jeanie had to find him, using a trail of
cryptic messages he had left behind.
That was the beginning of a beautiful friendship, in spite of the gray hairs that Jeanie began
accumulating as a result of McAndrew's impractical nature and his talent for getting himself into
trouble with much more practical villains, such as ...
A mass-murderer of several million people
A highly-placed government official whose life McAndrew saved,
but in an embarrassing way, and who consequently wants to kill
both him and Jeanie
The ruler of a slower-than-light spaceship that left Earth a long time ago, giving it time to
develop some very strange customs by the time McAndrew and Jeanie visited it. And there are still
more adventures of this spacegoing odd couple in The Compleat McAndrew.
UNSUITABLE ENVIRONMENT
"McAndrew and Roker." Kleeman's voice came from the speakers, calm and superior. "There will be
punishment unless you return at once."
I was at last at the airlock. McAndrew and Wicklund were there. Without speaking, McAndrew turned
and pointed towards the wall of the lock. I looked, and felt a sudden sickness. The wall where the
line of spacesuits should be hanging was empty.
"No suits?" I said stupidly.
He nodded. "Kleeman has been thinking a move ahead of you." There was a long and terrible pause.
"I looked out," he said at last. "Through the viewport there. The ship's capsule is still where we
left it."
"You're willing to chance it?" I looked at Wicklund, who stood there not following our
conversation at all.
Mac nodded. "I am. But what about him?"
I walked forward and stood in front of Wicklund. "Do you still want to go with us? Leave the Ark
forever?"
Wicklund licked his lips, then nodded.
"Into the lock." We moved forward together and I closed the inner door.
"Do not be foolish." It was Kleeman's voice, with a new expression of alarm. "There is nothing to
be served by sacrificing yourselves to space. McAndrew, you are a rational man. Come back and we
will discuss this together."
Mac swung open the outer airlock door. The air was gone in a puff of ice vapor. I saw the capsule
at the top of the landing tower. To reach it we had to traverse sixth meters of the interstellar
vacuum.
Title: The Compleat McAndrews
Author: Charles Sheffield
ISBN: 0-671-57857-X
Copyright: © 2000 by Charles Sheffield
Publisher: Baen Books <http://www.baen.com/>
Introduction
A glance at the copyright dates on the stories in this book shows that McAndrew has been with me
for almost as long as I have been writing fiction. My own manuscript notes make that point even
more clearly: the first piece of fiction that I ever published appeared in the April, 1977 issue
of Galaxy magazine. The handwritten date on the first page of the manuscript of "Killing Vector,"
my first McAndrew story, is just two months later: June 15, 1977. Since then, at apparently random
intervals ranging from a few weeks to a few years, I have produced another tale of Arthur Morton
McAndrew and his long-time and long-suffering companion, Jeanie Roker.
What's the fascination of these characters for me, and why do I return to them again and again? As
a related question, is there any pattern to the stories?
First, let me point out that the order in which they appear in this volume is not the order in
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which the stories were written. Chronologically, the order would be "Killing Vector," "Moment of
Inertia," "All the Colors of the Vacuum," "The Manna Hunt," "Rogueworld," "Shadow World," "The
Invariants of Nature," "Out of Focus," and "The Fifth Commandment."
The most obvious point about these stories is that each revolves around some central issue of
science. I go into that subject in detail in the Appendix at the end of the book. Whenever I
become interested in something, especially when that something involves physics and astronomy, a
McAndrew story is likely to emerge from my hindbrain.
That explains the chosen themes, but not McAndrew himself. I might suggest that he is some form of
alter ego, the me that I wish I were, except that others have already assigned that role to
Behrooz Wolf (of Sight of Proteus, Proteus Unbound, and Proteus in the Underworld).
Of course, I may have an alter ego suffering from multiple personality disorder. However, my
better guess is that McAndrew is an excuse. I derive great pleasure from sitting around, reading
and calculating on matters of no earthly value and importance. I do this happily for hours and
days, limited only by the arguments of conscience that I ought to be doing something useful and
productive. To give one example, I have for the past five years tried, sporadically and
unsuccessfully, to analyze a particular mathematical game. I can state the game simply, and to
avoid (or possibly create) reader frustration I may as well do so. Two players, A and B, take
turns throwing a die. There is a probability p that the die will show a score of 2, and a
probability of (1 - p) that the die will show a score of 1. Given a whole number N, what is the
probability that player A will be the first to reach a score of at least N?
I cannot justify wasting so much time on such a trivial game, except to use the all-work-and-no-
play defense. However, if an area of apparently useless interest can one day become the basis for
a McAndrew story, I have a rationale for my actions. Surely, if I write and publish a story, no
one can say that all my preliminary reading and calculating was pointless.
As for an overall pattern to the stories, I do see a general trend. However, I suspect that the
trend mirrors changes not in science but in me. If I had to categorize myself at the time I wrote
"Killing Vector," it would be as a practicing scientist whose knowledge of science fiction was
mainly as a reader, a person who despite some first-hand experience of America and Americans was
basically English, with an English wife and children. Today, twenty-one years and four or five
million published words on, I would describe myself as a writer with a strong amateur interest in
science; a person mostly American, with an American wife and children, albeit also a person with
strong social and family ties to England and the English. And, a fact not to be dismissed, I am
twenty-one years older. I am rather less interested in science, and more interested in people.
These changes affect the stories. When first we meet him, McAndrew the scientist is all there, but
I don't think I could in the early tales ever have given him a child (as in "Rogueworld"), and
still less a mother (as in "The Fifth Commandment"). That last story also points out an implicit
element in most of the earlier stories: the relationship between Jeanie Roker and McAndrew is in
some ways that of parent-child. He is the small boy whose rash actions lead him into trouble, she
is the responsible and experienced adult who gets him out. I think that's who I would really like
to be, the curious child who is not quite responsible for his own actions. That is the reason why
I continue to write about Arthur Morton McAndrew.
Two other brief answers to questions: Will I ever write a McAndrew novel? An e-mail correspondent
pointed out that although there are references to McAndrew in others of my novels, he has never
had one of his own. My answer is, McAndrew will get a novel when I run across a neat scientific
idea so large and complex that I can't get a handle on it in a story of ten to twenty thousand
words.
And finally, is this really the Complete McAndrew, as the title suggests?
To this, I can only offer the Clintonian reply: it all depends on how you define the word, is.
Certainly, at this time there exist no other McAndrew stories, so what you have is the complete
McAndrew. Equally certainly, there will in the future be fascinating scientific ideas that just
jump up and down, crying out, "Me, me, write about me."
I'm not sure I will be able to resist their pleas. But "The Incomplete McAndrew" makes a poor book
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title.
FIRST CHRONICLE:
Killing Vector
Everyone on the Control Stage found a reason to be working aft when Yifter came on board. There
was maximum security, of course, so no one could get really close without a good reason. Even so,
we all took the best look that we could manage—you don't often have a chance to see a man who has
killed a billion people.
Bryson from the Planetary Coordinators' Office was at Yifter's elbow. The two men weren't shackled
or anything melodramatic like that. Past a certain level of notoriety, criminals are treated with
some deference and even respect. Bryson and Yifter were talking together in a friendly way,
although they were in the middle of a group of top-rank security men, all heavily armed and
watchful.
They were taking safety to extremes. When I stepped forward to greet Bryson and his prisoner, two
guards carefully frisked me before I could get within hand-kill range, and they stood close beside
me when the introductions were made. I haven't lived on Earth for a long time, and they must have
known that I have no close relatives there; but they were taking no chances. Yifter was a prime
target for personal revenge. A billion people leave a lot of friends and relatives.
From a distance of one meter, Yifter's appearance did not match his reputation. He was of medium
height, slightly built, with bushy, prematurely white hair and mild, sad eyes. He smiled at me in
a tired, tolerant way as Bryson introduced us.
"I am sorry, Jeanie Roker," he said. "Your ship will be filled with strangers on this trip. I'll
do my best to keep out of your way and let you do your job."
I hoped he could live up to his words. Since I took over the runs to Titan, I've carried most
things in the connected set of cargo spheres that make up the Assembly. Apart from the kernels,
and we carry a few of those on the outbound leg of every trip, we've had livestock, mega-crystals,
the gravity simulator, and the circus. That's right, the circus. They must have had a terrible
agent, that's all I can say. I took them both ways, to Titan and back to L-5. Even with all that,
Yifter was still a novelty item. After he had been caught and the rest of the Lucies had gone
underground, nobody had known quite what to do with him. He was Earth's hottest property, the
natural target for a billion guns and knives. Until they decided how and when he would come to
trial, they wanted him a long way from Earth. It was my job to deliver him to the Titan penal
colony, and return him when they got themselves sorted out on Earth.
"I'll arrange for you and your guards to travel in a separate part of the Assembly," I said. "I
assume that you will prefer privacy."
Yifter nodded agreeably, but Bryson wasn't having any.
"Captain Roker," he said. "Let me remind you that Mr. Yifter has not been found guilty on any
charge. On this journey, and until his trial, he will be treated with proper courtesy. I expect
you to house both of us here in the Control Stage, and I expect that you will invite us to take
our meals here with you."
In principle, I could have told him to go and take a walk outside. As captain, I said who would
travel in the Control Stage, and who would eat with me—and innocent people were not usually sent
to the Titan penal colony, even before their trial. On the other hand, Bryson was from the
Planetary Coordinators' office, and even off-Earth that carried weight. I suppressed my first
reaction and said quietly, "What about the guards?"
"They can travel in the Second Section, right behind the Control Stage," replied Bryson.
I shrugged. If he wanted to make nonsense of Earth's security efforts, that was his choice.
Nothing had ever happened on any of my two-month runs from Earth to Titan, and Bryson was probably
quite right; nothing would happen this time. On the other hand, it seemed like a damned silly
charade, to ship twenty-five guards to keep an eye on Yifter, then house them in a separate part
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of the Assembly.
Yifter, with an uncanny empathy, had read through my shrug. "Don't worry about security, Jeanie
Roker," he said. He smiled again, that tired, soothing smile that began deep in his sad, brown
eyes. "You have my assurance, I will be a model prisoner."
He and Bryson walked on past me, into the main quarters. Was that really Yifter, the bogey-man,
the notorious head of the Hallucinogenic Freedom League? It seemed hard to believe. Three months
earlier, the Lucies—under Yifter's messianic direction—had planted hallucinogenic drugs in the
water supply lines of most of Earth's major cities. An eighth of the world had died in the
resulting chaos. Starvation, epidemic, exposure, and mindless combat had revisited the Earth and
exacted their age-old tribute. The monster who had conceived, planned, and directed that horror
was difficult to match with Yifter, the seemingly mild and placid man.
My thoughts were quickly diverted to more immediate practical matters. We had the final masses of
all the cargo, and it was time for the final balancing of the whole Assembly. One might assume
that just means balancing the kernels correctly, since they out-mass everything else by a factor
of a million. But each Section containing a kernel has an independent drive unit, powered by the
kernel itself. We leave those on Titan, and travel back light, but on the trip out the dynamic
balancing is quite tricky.
I reviewed the final configuration, then looked around for McAndrew. I wanted him to review the
balance calculations. It's my responsibility, but he was the kernel expert. I realized that he
hadn't been present when Yifter came aboard. Presumably he was over on one of the other Sections,
crooning over his beloved power sources.
I found him in Section Seven. The Assembly is made up of a variable number of Sections, and there
would be twelve on this trip, plus the Control Stage. Until we accelerate away from the Libration
Colony station, all the Sections are physically connected—with actual cables—to each other and to
the Control Stage. In flight, the coupling is done electromagnetically, and the drives for the
powered Sections are all controlled by a computer on the Control Stage. The Assembly looks like a
small bunch of grapes, but the stalks are nonfunctional—there are no cables in the System that
could take the strains, even at lowest acceleration. Moving among the spherical Sections when
we're in flight isn't easy. It means we have to cut the drives, and turn off the coupling between
the Sections. That's why I thought the idea of having Yifter's guards in a different Section was
so dumb—from there, they couldn't even reach the Control Stage when the drives were on.
I wanted McAndrew to check the configuration that we would hold in flight, to see if he agreed
that the stresses were decently balanced among the different Sections. We never run near the limit
on any of them, but there's a certain pride of workmanship in getting them all approximately
equal, and the stresses as low as possible.
He was standing on the ten-meter shield that surrounded the Section Seven kernel, peering through
a long boresight pointed in towards the center. He was aware of my presence but did not move or
speak until the observation was complete. Finally he nodded in satisfaction, closed the boresight
cap, and turned to me.
"Just checking the optical scalars," he said. "Spun up nicely, this one. So, what can I do for
you, Jeanie?"
I led him outside the second shield before I handed him the trim calculations. I know a kernel
shield has never failed, but I'm still not comfortable when I get too close to one. I once asked
McAndrew how he felt about working within ten meters of Hell, where you could actually feel the
gravity gradient and the inertial dragging. He looked at me with his little, introspective smile,
and made a sort of throat-clearing noise—the only trace of his ancestry that I could ever find in
him.
"Och," he said. "The shields are triply protected. They won't fail."
That would have reassured me, but then he had rubbed his high, balding forehead and added, "And if
they do, it won't make any difference if you are ten meters away, or five hundred. That kernel
would radiate at about two gigawatts, most of it high-energy gammas."
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The trouble was, he always had the facts right. When I first met McAndrew, many years ago, we were
taking the first shipment of kernels out to Titan. He had showed up with them, and I assumed that
he was just another engineer—a good one, maybe, but I expected that. Five minutes of conversation
with him told me that he had probably forgotten more about Kerr-Newman black holes—kernels—than I
was ever likely to learn. I have degrees in Electrical Engineering and Gravitational Engineering,
in my job I have to, but I'm really no gravity specialist. I felt like an idiot after our first
talk. I made a few inquiries, and found that McAndrew was a full professor at the Penrose
Institute, and probably the System's leading expert on space-time structure.
When we got to know each other better, I asked him why he would give up his job for four months of
the year, to ride herd on a bunch of kernels being shipped around the Solar System. It was a milk-
run, with lots of time and very little to do. Most people would be bored silly.
"I need it," he said simply. "It's very nice to work with colleagues, but in my line of business
the real stuff is mostly worked out alone. And I can do experiments here that wouldn't be allowed
back home."
After that, I accepted his way of working, and took vicarious pride in the stream of papers that
appeared from McAndrew at the end of each Titan run. He was no trouble on the trips. He spent most
of his time in the Sections carrying the kernels, only appearing in the Control Stage for his
meals—and frequently missing them. He was a tinkerer as well as a theorist. Isaac Newton was his
idol. His work had paid off in higher shielding efficiencies, better energy extraction methods,
and more sensitive manipulation of the charged kernels. Each trip, we had something new.
I left the trim calculations with him, and he promised to check them over and give me his comments
in an hour or two. I had to move along and check the rest of the cargo.
"By the way," I said, elaborately casual as I turned to go. "We'll be having company for dinner on
this trip. Bryson insists that Yifter should eat with us."
He stood quietly for a moment, head slightly bowed. Then he nodded and ran his hand over his
sandy, receding hair-line.
"That sounds like Bryson," he said. "Well, I doubt if Yifter will eat any of us for breakfast. I'm
not sure he'll be any worse than the rest of you. I'll be there, Jeanie."
I breathed a small sigh of relief, and left him. McAndrew, as I knew from experience, was the
Compleat Pacifist. I had wanted to be sure that he could stand the idea of meals with Yifter.
Four hours later, all our checks were complete. I switched on the fields. The dull grey exterior
of each Section turned to silver, shattering the sunlight and turning the Assembly to a cluster of
brilliants. The cables linking the Sections were still in position, but now they were hanging
loose. All stresses had been picked up by the balancing fields. In the Control Stage, I gradually
turned on the propulsion units of each powered Section. Plasma was fed through the ergosphere of
each kernel, picked up energy, and streamed aft. The relative positions of the Sections, Mossbauer-
controlled to within fractions of a micrometer, held steady. We accelerated slowly away from L-5,
and began the long spiral of a continuous-impulse orbit to Titan.
My work was just about finished until crossover time. The computers monitored the drive feeds, the
accelerations, and all the balance of the Sections. On this trip, we had three units without
operating drive units: Section Two, where Yifter's guards were housed, just behind the Control
Stage; Section Seven, where McAndrew had taken the kernel out of commission for his usual endless
and mysterious experiments; and of course, the Control Stage itself. I had made the mistake of
asking McAndrew what experiments he was planning for this trip. He looked at me with his innocent
blue eyes and scribbled an answer full of twistor diagrams and spinor notation—knowing damn well
that I wouldn't be able to follow it. He didn't like to talk about his work "halfcooked," as he
put it.
* * *
I had been more worried than I wanted to admit about dinner on that first ship-evening. I knew we
would all be itching to ask Yifter about the Lucies, but there was no easy way to introduce the
subject into the conversation. How could we do it? "By the way, I hear that you killed a billion
people a few months ago. I wonder if you would like to say a few words on the subject? It would
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liven up the table-talk at dinner." I could foresee that our conversation might be a little
strained.
As it turned out, my worries were unnecessary. The first impression that I'd had of Yifter, of a
mild and amiable man, strengthened on longer exposure. It was Bryson, during dinner, who caused
the first tricky moment.
"Most of Earth's problems are caused by the United Space Federation's influence," he said as the
robo-server, always on best form at the beginning of the trip, rolled in the courses. "If it
weren't for the USF, there wouldn't be as much discontent and rioting on Earth. It's all relative,
living space and living standards, and the USF sets a bad example. We can't compete."
According to Bryson, three million people were causing all the problems for ten billion—eleven,
before Yifter's handiwork. It was sheer nonsense, and as a USF citizen, I should have been the one
to bridle; but it was McAndrew who made a growling noise of disapproval, down in his throat; and
it was Yifter, of all people, who sensed the atmosphere quickest, and deftly steered the
conversation to another subject.
"I think Earth's worst problems are caused by the power shortage," he said. "That affects
everything else. Why doesn't Earth use the kernels for power, the way that the USF does?"
"Too afraid of an accident," replied McAndrew. His irritation evaporated immediately at the
mention of his specialty. "If the shields ever failed, you would have a Kerr-Newman black hole
sitting there, pumping out a thousand megawatts—mostly as high-energy radiation and fast
particles. Worse than that, it would pull in free charge and become electrically neutral. As soon
as that happened, there'd be no way to hold it electromagnetically. It would sink down and orbit
inside the Earth. We couldn't afford to have that happen."
"But couldn't we use smaller kernels on Earth?" asked Yifter. "They would be less dangerous."
McAndrew shook his head. "It doesn't work that way. The smaller the black hole, the higher the
effective temperature and the faster it radiates. You'd be better off with a much more massive
black hole. But then you've got the problem of supporting it against Earth's gravity. Even with
the best electromagnetic control, anything that massive would sink down into the Earth."
"I suppose it wouldn't help to use a nonrotating, uncharged hole, either," said Yifter. "That
might be easier to work with."
"A Schwarzschild hole?" McAndrew looked at him in disgust. "Now, Mr. Yifter, you know better than
that." He grew eloquent. "A Schwarzschild hole gives you no control at all. You can't get a hold
of it electromagnetically. It just sits there, spewing out energy all over the spectrum, and
there's nothing you can do to change it—unless you want to charge it and spin it up, and make it
into a kernel. With the kernels, now, you have control."
I tried to interrupt, but McAndrew was just getting warmed up. "A Schwarzschild hole is like a
naked flame," he went on. "A caveman's device. A kernel is refined, it's controllable. You can
spin it up and store energy, or you can use the ergosphere to pull energy out and spin it down.
You can use the charge on it to move it about as you want. It's a real working instrument—not a
bit of crudity from the Dark Ages."
I shook my head, and sighed in simulated despair. "McAndrew, you have an unconsummated love affair
with those blasted kernels." I turned to Yifter and Bryson, who had watched McAndrew's outburst
with some surprise. "He spends all his waking hours spinning those things up and down. All the
last trip, he was working the kernels in gravitational focusing experiments. You know, using the
fact that a gravity field bends light rays. He insists that one day we won't use lenses for
optics—we'll focus light using arrays of kernels."
I made the old joke. "We hardly saw him on that trip. We were convinced that one day he'd get
careless with the shields, fall into one of the kernels, and really make a spectacle of himself."
They didn't get it. Yifter and Bryson looked at me blankly, while McAndrew, who'd heard it all ten
times before, chuckled. I knew his simple sense of humor—a bad joke is always funny, even if it's
the hundredth time you've heard it told.
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It's a strange thing, but after the first half-hour I had stopped thinking of Yifter as our
prisoner. I could understand now why Bryson had objected to the idea of surrounding Yifter with
armed guards. I'd have objected myself. He seemed the most civilized man in the group, with a warm
personality and a very dry and subtle sense of humor.
When Bryson left the table, pleading a long day and a lack of familiarity with a space
environment, Yifter, McAndrew and I stayed on, chatting about the previous trips I had made to
Titan. I mentioned the time I had taken the circus.
"Do you know, I'd never seen most of those animals before," I said. "They were all on the list of
endangered species. I don't think you could find them on Earth any more, except in a circus or a
zoo."
There was a moment of silence, then Yifter spoke. His eyes were mild and smiling, and his voice
sounded dreamy and distant.
"Endangered species," he said. "That's the heart of it. Earth has no room for failures. The weaker
species, like weaker specimens of a species, must be eliminated. Only the strong—the mentally
strong—may survive. The weak must be culled, for our own sake; whether that means one tenth, one
half, or nine tenths of the total."
There was a chilling pause. I looked at Yifter, whose expression had not changed, then at
McAndrew, whose face reflected the horror that I was feeling. Yet behind all that, I could feel
the unique power of the man. My mind was rejecting Yifter, but I still had a sense of well-being,
of warmth in the pit of my stomach, as he was speaking.
"We have made a beginning," went on Yifter quietly. "Just a beginning. Last time we were less
successful than I had hoped. We had a breakdown in the distribution system for the drugs. I
managed to eliminate the responsible individuals, but it was too late to correct the problem. Next
time, God willing, it will be different."
He rose to his feet, white hair shining like silver, face beatific. "Good night, Captain. Good
night, Professor McAndrew. Sleep well."
After he had left, McAndrew and I sat and looked at each other for a long time. Finally, he broke
the spell.
"Now we know, Jeanie. We should have guessed it from the beginning. Mad as a hatter. The man's a
raving lunatic. Completely psychotic."
That said most of it. McAndrew had used up all the good phrases. I nodded.
"But did you feel the strength in him?" went on McAndrew. "Like a big magnet."
I was glad that the penal colony was so far from Earth, and the avenues of communication so well-
guarded. "Next time . . . it will be different." Our two-month trip suddenly seemed to have
doubled in length.
* * *
After that single, chilling moment, there were no more shocks for some time. Our regular meal-time
conversations continued, and on several occasions McAndrew voiced views on pacifism and the
protection of human life. Each time, I waited for Yifter's reply, expecting the worst. He never
actually agreed with Mac—but he did not come out with any statement that resembled his comments of
the first ship-evening.
We soon settled into the ship-board routine. McAndrew spent less and less time in the Control
Stage, and more in Section Seven. On this trip, he had brought a new set of equipment for his
experiments, and I was very curious to know what he was up to. He wouldn't tell. I had only one
clue. Section Seven was drawing enormous energy from the other kernels in the rest of the
Assembly. That energy could only be going to one place—into the kernel in Section Seven. I
suspected that McAndrew must be spinning it up, making it closer to an "extreme" kernel, a Kerr-
Newman black hole where the rotation energy matches the mass energy. I knew that couldn't be the
whole story. McAndrew had spun up the kernels before, and he had told me that there was no direct
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way of getting a really extreme kernel—that would take an infinite amount of energy. This time, he
was doing something different. He insisted that Section Seven had to be off-limits to everybody.
I couldn't get him to talk about it. There would be a couple of seconds of silence from him, then
he would stand there, cracking his finger joints as though he were snapping out a coded message to
me. He could be a real sphinx when he chose.
Two weeks from Earth, we were drawing clear of the main Asteroid Belt. I had just about concluded
that my worries for the trip were over when the radar reported another ship, closing slowly with
us from astern. Its spectral signature identified it as the Lesotho, a cruise liner that usually
ran trajectories in the Inner System. It was broadcasting a Mayday, and flying free under zero
drive power.
I thought about it for a moment, then posted Emergency Stations throughout the Assembly. The
computed trajectory showed that we would match velocities at a separation of three kilometers.
That was incredibly close, far too close to be accidental. After closest approach, we would pull
away again—we were still under power, accelerating outward, and would leave the Lesotho behind.
I was still watching the displays, trying to decide whether or not to take the next step—shutting
off the drives—when Bryson appeared, with Yifter just behind him.
"Captain Roker," he said, in his usual imperious manner. "That's an Earth ship there, giving you a
distress signal. Why aren't you doing anything about it?"
"If we wait just a few minutes," I said. "We'll be within spitting distance of her. I see no point
in rushing in, until we've had a good look at her. I can't think what an Inner System ship would
be doing, free-falling out here beyond the Belt."
That didn't cool him. "Can't you recognize an emergency when you see one?" he said. "If you won't
do something productive with your people, I'll do something with mine."
I wondered what he wanted me to do, but he walked away without saying anything more, down the
stairs that led to the rear communication area of the Control Stage. I turned back to the
displays. The Lesotho was closing on us steadily, and now I could see that her locks were open. I
cut our propulsion to zero and switched off all the drives. The other ship was tumbling slowly,
drive lifeless and aft nacelles crumpled. Even from this distance, I could see that she would need
extensive repairs before she could function again.
I was beginning to think that I had been over-cautious when two things happened. Yifter's guards,
who had been housed behind the Control Stage in Section Two, began to float into view on the
viewing screen that pointed towards the Lesotho. They were all in space armor and heavily
weaponed. At the same time two suited figures appeared in the open forward lock of the other
vessel. I cut in the suit frequencies on our main board.
"—shield failure," said the receiver. "Twenty-seven survivors, and bad injuries. We must have
painkillers, medical help, water, food, oxygen and power-packs."
With that, one group of our guards outside began to move towards the two suited figures in the
Lesotho's lock, while the remainder stayed close to the Assembly, looking across at the other
ship. Subconsciously, I noted the number of our guards in each party, then gave them my full
attention and did a rapid re-count. Twenty-five. All our guards. I swore and cut in the
transmitter.
"Sergeant, get half of those men back inside the Assembly shields. This is Captain Roker. I'm over-
riding any other orders you may have received. Get the nearer party—"
I was interrupted. The display screen flashed blue-white, then over-loaded. The whole Control
Stage rang like a great bell, as something slapped hard on the outer shield. I knew what it was: a
huge pulse of hard radiation and highly energetic particles, smashing into us in a fraction of a
microsecond.
Yifter had been floating within a couple of meters of me, watching the screens. He put his hand to
the wall to orient himself as the Control Stage vibrated violently. "What was that?"
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"Thermonuclear explosion," I said shortly. "Hundred megaton plus. On the Lesotho."
All the screens on that side were dead. I activated the standby system. The Lesotho had vanished.
The guards had vanished with it, vaporized instantly. All the cables linking the parts of the
Assembly, all the scanners and sensors that were not protected behind the shields, were gone. The
Sections themselves were intact, but their coupling fields would have to be completely
recalibrated. We wouldn't be arriving at Titan on schedule.
I looked again at Yifter. His face was now calm and thoughtful. He seemed to be waiting, listening
expectantly. For what? If the Lesotho had been a suicide mission, manned by volunteers who sought
revenge on Yifter, they hadn't had a chance. They couldn't destroy the Assembly, or get at Yifter.
If revenge were not the purpose, what was the purpose?
I ran through in my mind the events of the past hour. With the drives switched off in the
Assembly, we had an unprotected blind spot, dead astern. We had been putting all our attention on
the Lesotho. Now, with the guards all dead, the Control Stage was undefended.
It was quicker to go aft and take a look than to call Bryson or McAndrew and ask them what they
could see from the rear viewing screens of the Control Stage. Leaving Yifter, I dived head-first
down the stairway—a risky maneuver if there were any chance that the drive might come back on, but
I was sure it couldn't.
It took me about thirty seconds to travel the length of the Control Stage. By the time that I was
halfway, I knew I had been thinking much too slowly. I heard the clang of a lock, a shout, and the
sputtering crackle of a hand laser against solid metal. When I got to the rear compartment, it was
all finished. Bryson, pale and open-mouthed, was floating against one wall. He seemed unhurt.
McAndrew had fared less well. He was ten meters farther along, curled into a fetal ball. Floating
near him I saw a family of four stubby pink worms with red-brown heads, still unclenching with
muscle spasm. I could also see the deep burn on his side and chest, and his right hand, from which
a laser had neatly clipped the fingers and cauterized the wound instantly as it did so. At the far
end of the room, braced against the wall, were five suited figures, all well-armed.
Heroics would serve no purpose. I spread my arms wide to show that I was not carrying a weapon,
and one of the newcomers pushed off from the wall and floated past me, heading towards the front
of the Control Stage. I moved over to McAndrew and inspected his wounds. They looked bad, but not
fatal. Fortunately, laser wounds are usually very clean. I could see that we would have problems
with his lung unless we treated him quickly. A lobe had been penetrated, and his breathing was
slowly breaking the seal of crisped tissue that the laser had made. Blood was beginning to well
through and stain his clothing.
McAndrew's forehead was beaded with sweat. As the shock of his wound wore off, the pain was
beginning. I pointed to the medical belt of one of the invaders, who nodded and tossed an ampoule
across to me. I injected McAndrew at the big vein inside his right elbow.
The figure who had pushed past me was returning, followed by Yifter. The face plate of the suit
was now open, revealing a dark-haired woman in her early thirties. She looked casually at the
scene, nodded at last, and turned back to Yifter.
"Everything's under control here," she said. "But we'll have to take a Section from the Assembly.
The ship we were following in caught some of the blast from the Lesotho, and it's no good for
powered flight now."
Yifter shook his head reprovingly. "Impatient as usual, Akhtar. I'll bet you were just too eager
to get here. You must learn patience if you are to be of maximum value to us, my dear. Where did
you leave the main group?"
"A few hours drive inward from here. We have waited for your rescue, before making any plans for
the next phase."
Yifter, calm as ever, nodded approvingly. "The right decision. We can take a Section without
difficulty. Most of them contain their own drives, but some are less effective than others."
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He turned to me, smiling gently. "Jeanie Roker, which Section is the best equipped to carry us
away from the Assembly? As you see, it is time for us to leave you and rejoin our colleagues."
His calm was worse than any number of threats. I floated next to McAndrew, trying to think of some
way that we could delay or impede the Lucies' escape. It might take days for a rescue party to
reach us. In that time, Yifter and his followers could be anywhere.
I hesitated. Yifter waited. "Come now," he said at last. "I'm sure you are as eager as I am to
avoid any further annoyance"—he moved his hand, just a little, to indicate McAndrew and
Bryson—"for your friends."
I shrugged. All the Sections contained emergency life-support systems, more than enough for a trip
of a few hours. Section Two, where the guards had been housed, lacked a full, independent drive
unit, but it was still capable of propulsion. I thought it might slow their escape enough for us
somehow to track it.
"Section Two should be adequate," I said. "It housed your guards in comfort. Those poor devils
certainly have no need for it now."
I paused. Beside me, McAndrew was painfully straightening from his contorted position. The drugs
were beginning to work. He coughed, and red globules floated away across the room. That lung
needed attention.
"No," he said faintly. "Not Two, Yifter. Seven. Section Seven."
He paused and coughed again, while I looked at him in surprise.
"Seven," he said at last. He looked at me. "No killing, Jeanie. No—Killing vector."
The woman was listening closely. She regarded both of us suspiciously. "What was all that about?"
My mouth was gaping open as wide as Bryson's. I had caught an idea of what McAndrew was trying to
tell me, but I didn't want to say it. Fortunately, I was helped out by Yifter himself.
"No killing," he said. "My dear, you have to understand that Professor McAndrew is a devoted
pacifist—and carrying his principles through admirably. He doesn't want to see any further
killing. I think I can agree with that—for the present."
He looked at me and shook his head. "I won't inquire what dangers and drawbacks Section Two might
contain, Captain—though I do seem to recall that it lacks a decent drive unit. I think we'll
follow the Professor's advice and take Section Seven. Akhtar is a very competent engineer, and I'm
sure she'll have no trouble coupling the drive to the kernel."
He looked at us with a strange expression. If it didn't sound so peculiar, I'd describe it as
wistful. "I shall miss our conversations," he said. "But I must say goodbye now. I hope that
Professor McAndrew will recover. He is one of the strong—unless he allows himself to be killed by
his unfortunate pacifist fancies. We may not meet again, but I am sure that you will be hearing
about us in the next few months."
They left. McAndrew, Bryson and I watched the screens in silence, as the Lucies made their way
over to Section Seven and entered it. Once they were inside, I went over to McAndrew and took him
by the left arm.
"Come on," I said. "We have to get a patch on that lung."
He shook his head weakly. "Not yet. It can wait a few minutes. After that, it might not be
necessary."
His forehead was beading with sweat again—and this time it was not from pain. I felt my own
tension mounting steadily. We stayed by the display screen, and as the seconds ticked away my own
forehead began to film with perspiration. We did not speak. I had one question, but I was terribly
afraid of the answer I might get. I think that Bryson spoke to both of us several times. I have no
idea what he said.
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file:///D|/Documents%20and%20Settings/harry/Desktop/New%20Folder/Charles\%20Sheffield%20-%20The%20Compleat%20McAndrew.txtTHEBRAINOFANEINSTEIN--THEMINDOFANENGINEERPresentingthespaceadventuresofArthurMortonMcAndrew,space-timeexpertandscientistextraordinaire,andhislong-sufferingcompanion,spaceshipskip...

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