<h2><SPAN name="Chapter_7" id="Chapter_7"></SPAN>Chapter 7</h2>
<p><span class="smcap">The Mekinese ship</span> was a cruiser, and it broke out of overdrive
within the Tralee solar system just two days, four hours,
and some odd minutes after Gwenlyn predicted its coming.
Presumably, it had made the customary earlier breakout to
correct its course and measure the distance remaining to be
run. In overdrive there was not as yet a way to know accurately
one's actual speed, and at astronomical distances
small errors piled up. Correction of line was important, too,
because a course that was even a second off arc could mount
up to hundreds of thousands of miles. But even with that usual
previous breakout, the Mekinese cruiser did not turn up conveniently
close to its destination. It needed a long solar-system
drive to make its planetfall.</p>
<p>Bors's long-range radar picked it up before it was near
enough to notify its arrival to the planet—if it intended to
notify at all. Most likely its program was simply and frighteningly
to appear overhead and arrogantly demand the services
of the landing-grid to lower it to the ground.</p>
<p>Bors's radar detected the cruiser and instantly cut itself off.
The cry of "<i>Co-o-ntact!</i>" went through the ship and all inner
doors closed, sealing the ship into sections. Bors was already
at the board in the control room. He did not accept the predictions
of Talents, Incorporated as absolute truth. It bothered
him that such irrational means of securing information
should be so accurate. So he compromised in his own mind to<span class='pagenum'><SPAN name="Page_87" id="Page_87"></SPAN></span>
the point where, when Talents, Incorporated gave specific information,
it was possible; no more. Then, having admitted so
much, he acted on the mere possibility, and pretended to be
surprised when it turned out to be a fact.</p>
<p>That was the case now. A ship had appeared in this solar
system at the time the ship-arrival Talent on the <i>Sylva</i> predicted.
Bors scowled, and swung the <i>Isis</i> in line between Tralee
and the new arrival. He turned, then, and drove steadily out
toward it. The other ship's screens would show a large blip
which was the planet, and in direct line a very much smaller
blip which was the <i>Isis</i>. The small blip might not be noticed
because it was in line with the larger. If it were noticed, it
would be confusing, because such things should not happen.
But the cruisers of Mekin were not apt to be easily alarmed.
They represented a great empire, all of whose landing-grids
were safely controlled, and though there was disaffection
everywhere there was no reason to suspect rebellion at operations
in space.</p>
<p>For a long time nothing happened. The <i>Isis</i> drove to meet
the cruiser. The two vessels should be approaching each other
at a rate which was the total of their speeds. Bors punched
computer-keys and got the gravitational factor at this distance
from Tralee's sun. He set the <i>Isis's</i> solar-system drive
to that exact quantity. He waited.</p>
<p>His own radar was now non-operative. Its first discovery-pulse
would have been observed by the Mekinese duty-officer.
The fact that it did not repeat would be abnormal. The duty-officer
would wonder why it didn't come again.</p>
<p>The astrogation-radar cut off. Then a single strong pulse
came. It would be a ranging-pulse. Cargo-ship radars sacrificed
high accuracy for wide and deep coverage. But war-vessels
carried pulse instruments which could measure distances
within feet up to thousands of miles, and by phase-scrambling
among the echoes even get some information about the size
and shape of the object examined. Not much, but some.</p>
<p>Bors relaxed. Things were going well. When four other
ranging-pulses arrived at second intervals, he nodded to himself.<span class='pagenum'><SPAN name="Page_88" id="Page_88"></SPAN></span>
This was a warship's reaction. It could be nothing else.
That officer knew that something was coming out from Tralee.
It was on approximately a collision course. But a ship traveling
under power should gain velocity as long as its drive was
on. When traveling outward from the sun and not under power,
it should lose velocity by so many feet per second to the sun's
gravitational pull. Bors's ship did neither. It displayed the
remarkably unlikely characteristic of absolutely steady motion.
It was not normal. It was not possible. It could not have any
reasonable explanation, in the mind of a Mekinese.</p>
<p>Which was its purpose. It would arouse professional curiosity
on the cruiser, which would then waste some precious time
attempting to identify it. There wouldn't be suspicion because
it didn't act suspiciously. Still, it couldn't be dismissed, because
it didn't behave in any recognizable fashion. The cruiser
would want to know more about it; it shouldn't move at a
steady velocity going outward from a sun.</p>
<p>In consequence, Bors got in the first shot.</p>
<p>He said, "Fire one!" when the Mekinese would be just
about planning to turn their electron-telescope upon it. A missile
leaped away from the <i>Isis</i>. It went off at an angle, and it
curved madly, and the instrumentation of the cruiser could
spot it as now there, now here, now nearer, and now nearer
still. But the computers could not handle an object which not
only changed velocity but changed the rate at which its velocity
changed.</p>
<p>Missiles came pouring out of the Mekinese ship. They were
infinitesimal, bright specks on the radar-screen. They curved
violently in flight trying to intercept the <i>Isis's</i> missile.
They failed.</p>
<p>There was a flash of sun-bright flame very, very far away.
There was a little cloud of vapor which dissipated swiftly.
Then there was nothing but two or three specks moving at
random, their target lost, their purpose forgotten. The fact of
victory was an anticlimax.</p>
<p>"All clear," said Bors grimly.</p>
<p>The inner-compartment doors opened. The normal sounds<span class='pagenum'><SPAN name="Page_89" id="Page_89"></SPAN></span>
of the ship were heard again. Bors began to calculate the data
needed for the journey to Garen. There was the angle and
the distance and the proper motions and the time elapsed....
He found it difficult to think in such terms. He was discontented.
He'd ambushed a Mekinese cruiser. True, he'd let his
own ship be seen, and the Mekinese had warning enough to
launch missiles in their own defense. It was not even faintly
like the ambush of a cruiser on the bottom of a Kandarian sea,
waiting to assassinate a fleet when its complement went on
board. But Bors didn't like what he'd just done.</p>
<p>The figures wouldn't come out right. Impatiently, he sent
for Logan. The mathematical Talent came into the control
room.</p>
<p>"Will you calculate this for me?" Bors asked irritably.</p>
<p>Logan glanced casually at the figures and wrote down the
answer. Instantly. Without thought or reflection. Instantly!</p>
<p>Bors couldn't quite believe it. The distance between the two
stars was a rounded-off number, of course. The relative proper
motion of the two stars had a large plus-or-minus bugger
factor. The time-lapse due to distance had a presumed correction
and there was a considerable probable error in the
speed of translation of the ship during overdrive. It was a
moderately complicated equation, and the computation of
the probable error was especially tricky. Bors stared at it, and
then stared at Logan.</p>
<p>"That's the answer to what you have written there," said
Logan condescendingly, "but your figures are off. I've been
talking to your computer men. They've given me the log
figures on past overdrive jumps and the observed errors on arrival.
They're systematic. I noticed it at once."</p>
<p>Bors said, "What?"</p>
<p>"There's a source of consistent error," Logan said patiently.
"I found the values to correct it, then I found the source.
It's in your overdrive speed."</p>
<p>Bors blinked. Speed in overdrive could not be computed
exactly. The approximation was very close—within a fraction<span class='pagenum'><SPAN name="Page_90" id="Page_90"></SPAN></span>
of a tenth of one per cent—but when the distance traveled
was light-years the uncertainty piled up.</p>
<p>"If you use these figures," said Logan complacently—and
he scribbled figures swiftly—"you'll get it really accurate."</p>
<p>Having finished writing the equation, he wrote the solution.
Bors asked suspicious questions. Logan answered absently. He
knew nothing about overdrive. He didn't understand anything
but numbers and he didn't know how he did what he did
with them. But he'd worked backward from observed errors
in calculation and found a way to keep them out of the answer.
And he'd done it all in his head. It was unbelievable—yet Bors
believed.</p>
<p>"I'll try your figures," he said. "Thanks."</p>
<p>Logan went proudly away, past an orderly bringing cups
of coffee to the control room. Bors aimed the ship according to
the calculation Logan had given him, scrupulously setting the
breakout timer to the exact figure listed.</p>
<p>He was still uncomfortable about the destruction of the
Mekinese cruiser when he said curtly, "Overdrive coming!"
He'd have preferred a more sportsmanlike type of warfare. He
faced the old, deplorable fact that fighting men had had to
adjust to throughout the ages; one can fight an honorable
enemy honorably, but against some men scruples count as
handicaps.</p>
<p>"Swine!" growled Bors. "They'll make us like them!" Then
into the microphone he said, "Five, four, three, two, one...."</p>
<p>He pressed the overdrive button. The sensation of going into
overdrive was acutely uncomfortable, as always. Bors swallowed
squeamishly and took his cup of coffee.</p>
<p>The <i>Isis</i>, then, lay wrapped in a cocoon of stressed space.
Its properties included the fact that its particular type of
stress could travel much more swiftly than the stresses involved
in the propagation of radiation, of magnetism, or gravity. And
this state of stress—this overdrive field—did not have a position.
It <i>was</i> a position. The ship inside it could not be said to
be in the real cosmos at all, but when the field collapsed it
would be somewhere, and the way it pointed, and how long<span class='pagenum'><SPAN name="Page_91" id="Page_91"></SPAN></span>
before collapse, determined in what particular somewhere it
would be when it came out. But travel in overdrive was tedious.</p>
<p>As civilization increases man's control of the cosmos, it takes
the fun out of it. In prehistoric days a man who had to hunt
animals or go hungry may often have gone hungry, but he
was never bored by the sameness of his meals. A man who
traveled on horseback often got to his destination late, but
he was not troubled with ennui on the way. In overdrive,
Bors's ship traveled almost with the speed of thought, but
there was absolutely nothing to think about while journeying.
Not about the journey, anyhow.</p>
<p>While the ship drove on, however, the cargo-ship seized on
Tralee made its way toward Glamis and a meeting with the
fleet, then gloomily sweeping in orbit around Glamis Two. The
food it carried would raise men's spirits a little, but it would
not solve the problem of what the fleet was to do. Morgan, on
the flagship, expounded the ability of his Talents to perform
the incredible, but nobody could find any application of the
incredible to the fix the fleet was in. On Kandar, the population
knew that there had been a battle off the gas-giant planet,
but they did not know the result. The Mekinese fleet had not
come. The fleet of Kandar had not returned. The caretaker
government met in council and desperately made guesses. It
arrived at no hopeful conclusion whatever. The most probable—because
most hopeless—conviction seemed to be that
the fleet of Mekin had been met and fought, but that it was
victorious, and in retaliation for resistance it had gone away
to send back swarms of grisly bomb-carriers which would drop
atomic bombs in such quantity that for a thousand years to
come there would be no life on Kandar.</p>
<p>The light cruiser, the <i>Isis</i>, was unaware of these frustrations.
It remained in overdrive, where absolutely nothing happened.</p>
<p>Bors reviewed his actions and could not but approve of them
tepidly. He'd sent food to the fleet, he'd destroyed two enemy
fighting ships and he'd done what he could to harm the Mekinese
puppets on Tralee. He'd had them publicly humiliated<span class='pagenum'><SPAN name="Page_92" id="Page_92"></SPAN></span>
with well-chosen epithets. He'd destroyed the records and archives
of the secret political police.... Many people on Tralee
already blessed him, without knowing who he was. There might
yet be hope of better days.</p>
<p>But all things end, even journeys at excessively great multiples
of the speed of light. The overdrive timer rang warning
bells. Taped breakout notifications sounded from speakers
throughout the ship. There was a count-down of seconds, and
the abominably unpleasant sensation of breakout, and the ship
was in normal space again.</p>
<p>There was the sun of Garen, burning peacefully in a vast
void with millions of minute, unwinking lights in the firmament
all about it. There was a gas-giant planet, a mere fifteen
million miles away. Further out there were the smaller, frozen
worlds. Nearer the sun, on the far side of its orbit, there was
the planet Garen.</p>
<p>The <i>Isis</i> drove for that planet, while Bors tried to decide
whether the remarkable accuracy of this breakout was due to
accident or to Logan's computations.</p>
<p>Logan appeared as Bors was gloomily contemplating the
days needed to reach Garen on solar system drive, because
overdrive was too fast. Logan looked offhand and elaborately
casual, but he fairly glowed with triumph.</p>
<p>"I found out the fact behind the bugger factor, Captain,"
he said condescendingly. "The speed of a ship in overdrive
varies as the change in mass to the minus fourth. Your computers
couldn't tell that! Here's a table for calculating the
speed of a ship in overdrive according to its mass and the
strength of the overdrive field."</p>
<p>"Fine," said Bors without enthusiasm.</p>
<p>"And to go with it," said Logan, his voice indifferent, but
his eyes shining proudly, "just for my own amusement, I computed
a complete table of overdrive speeds for this particular
ship, with different strengths of field. They run from one
point five light-speeds up to the maximum your equipment
will give. You have to correct for changes of mass, of course."</p>
<p>Bors was not quite capable of enthusiasm over the computation<span class='pagenum'><SPAN name="Page_93" id="Page_93"></SPAN></span>
of tables of complex figures. He simply could not share
Logan's thrill of achievement in the results of the neat rows of
numerals. Nor had he struggled unduly to grasp the implication
of Logan's explanation.</p>
<p>Instead, he said politely, "Very nice. Thank you very much."</p>
<p>Logan's eyes ceased to shine. His wounded pride made him
defiant.</p>
<p>"Nobody else anywhere could have worked out that table!"
he said stridently. "Nobody! Morgan said you'd appreciate
my work! He said you needed my talent! But what good do
you see in it? You think I'm a freak!"</p>
<p>Bors realized that he'd been tactless. Logan's experiences
before Talents, Incorporated had made him unduly sensitive.
He'd done something of which he was proud, but Bors didn't
appreciate its magnitude. Logan reacted to the frustration of
his vanity.</p>
<p>"Hold it!" said Bors. "I'm not unappreciative. I'm stupid
and worried about something. You just figured an overdrive
jump for me that's the most accurate I ever heard of! But
I'm desperate for time and we've got to spend two days in
solar-system drive because we can't make an overdrive hop of
less than light-days! So we're losing forty-eight hours or more."</p>
<p>Logan said as stridently as before:</p>
<p>"But I just showed you you don't have to! Cut the field-strength
according to that table."</p>
<p>Bors was jolted. It was suddenly self-evident. Logan had
said he'd figured a table of overdrive fields for the <i>Isis</i> which
would work for anything between one point five light-speeds
to maximum. One point five light-speeds!</p>
<p>It was one of those absurdities in technology that so often
go so long before they are noticed. During the development
of overdrive, it had been the effort of every technician to get
the fastest possible drive. It was known that with a given mass
and a given field-strength, one could get an effective speed of
an unbelievable figure. Men had spent their lives trying to increase
that figure. But nobody'd ever tried to find out how<span class='pagenum'><SPAN name="Page_94" id="Page_94"></SPAN></span>
<i>slowly</i> one could travel in overdrive, because solar-system drive
took care of <i>short</i> distances!</p>
<p>"Wait a minute!" said Bors, staring. "Do you really mean
I can drive this ship under two light-speeds in overdrive?"</p>
<p>"Look at the table!" said Logan, trembling with anger.
"Look at it! You'll find the figures right there!"</p>
<p>Bors looked. Then he stood up quickly. He left the ship in
the care of his second-in-command and plunged into a highly
technical discussion with its engineers.</p>
<p>He ran into violent objections. The whole purpose of overdrive
was high speed between stars. The engineers insisted that
one had to use the strongest possible field. If the field were
made feeble, it would become unstable. Everybody knew that
the field had to be of maximum strength.</p>
<p>"We'll try minimum," said Bors coldly. "Now let's get to
work!"</p>
<p>He had to do much of the labor himself, because the
engineers found it necessary to stop at each stage of the effort
to explain why it should not be done. He had almost to battle
to get an auxiliary circuit paralleling the main overdrive
unit, with a transformer to bring down voltage, and a complete
new power-supply unit to be cut into the overdrive line
while leaving the standard ready for use without delay.</p>
<p>He went back to the control room. He took a distance-reading
on the huge planet off to port. He threw on the new,
low-power overdrive field. He held it for seconds and broke
out. It was still in sight.</p>
<p>The speed of the <i>Isis</i>, with the adjusted overdrive, was one
point seven lights.</p>
<p>Now, instead of spending days in solar-system drive for
planetary approach, Bors went into the new-speed drive and
broke out in eleven minutes twenty seconds, and was within
a hundred thousand miles of Garen. He'd saved two days and
secured the promise of many more such valuable feats.</p>
<p>As soon as the <i>Isis</i> broke to normal space near Garen, there
was a call on the communicator. A familiar voice;<span class='pagenum'><SPAN name="Page_95" id="Page_95"></SPAN></span></p>
<p>"<i>Calling</i> Isis! <i>Calling</i> Isis! Sylva <i>calling</i> Isis!"</p>
<p>Bors said softly, "Damnation! For the second time, what
are you doing in this place?"</p>
<p>Gwenlyn's voice laughed.</p>
<p>"<i>Traveling for pleasure, Captain Bors! I've news for you.
We were allowed to land and then told to leave again. There's
a warship down below. I told you about it before. It's still
there. There's a huge cargo-ship, too, and there are riots because
it's almost finished loading with requisitioned foodstuffs
for Mekin. Mekin is—would you believe it?—unpopular on
Garen!</i>"</p>
<p>"Very well," said Bors. "I'll see what can be done. Will you
carry a message for me?"</p>
<p>"<i>Happy to oblige, Captain!</i>"</p>
<p>"Tell them that—" Then Bors stopped short. It was not
probable that the fleet wave-form and frequency were known
to Mekinese ships. But the possibility of low-speed overdrive
travel was much too important a military secret to risk under
any circumstances. He said, "I'll be along very shortly with
some highly encouraging news."</p>
<p>"<i>Who do I tell this to?</i>"</p>
<p>"I name no names on microwaves," he told her. "Get going,
will you?"</p>
<p>"<i>To hear</i>," said Gwenlyn cheerfully, "<i>is to obey</i>."</p>
<p>Her communicator clicked off. The <i>Sylva</i> showed on a radar-screen,
but had not been near enough to be sighted direct. The
blip shot out from the planet.</p>
<p>Bors growled to himself. The <i>Isis</i> floated a hundred thousand
miles off Garen. There was no challenge. There was no
query from the planet. But Gwenlyn said that there were riots
down below. They could be serious enough to absorb the attention
usually given to routine. But there was another reason
for this inattention. Garen was a part of the Mekinese empire
which was not encouraged to trade off-planet except through
Mekin. Very few non-Mekinese ships would ever land there,
and therefore wouldn't be watched for. It was unlikely that a<span class='pagenum'><SPAN name="Page_96" id="Page_96"></SPAN></span>
long-range radar habitually swept space off Garen. The battleship
should be more alert, but again there was no danger of
space-borne rebellion, and the affair of Kandar might not have
been bruited so far away.</p>
<p>But the spaceport would respond to calls, certainly. Bors
considered these circumstances. A large cargo-ship loaded with
foodstuffs requisitioned to be sent to Mekin. A population
which had been rebellious before—witness the battleship
aground to overawe resistance—and now was rioting.</p>
<p>Bors called for the extra members of his crew. He uncomfortably
outlined the action he had in mind. There was one
part that he disliked. He had to stay on board ship. The important
action, as he saw it, would take place elsewhere. It
was so obviously painful for him to outline a course of action
in which other men must take risks he couldn't share, that
his men regarded him with pleased affection which he did
not guess at. In the end he asked for twenty volunteers, and
got fifty.</p>
<p>He swung the <i>Isis</i> around to the night side of the planet.
Its two port blisters opened and two boats floated free in the
orbit Bors had established. The ship moved on ahead.</p>
<p>Just at sunup where the spaceport stood, a voice growled
down from outer space.</p>
<p>"<i>Calling ground!</i>" it said contemptuously. "<i>Calling ground!
This is the last ship left of the fleet of Kandar. We're pirates
now and we're looking for trouble! There's a battleship down
there. Come up and fight or we blast you in your spaceport!
Just to prove we can do it—watch!</i>"</p>
<p>Bors said, "Fire one," and a missile went off toward the
planet. It was fused to detonate at the very tip of the fringes
of the planet's atmosphere.</p>
<p>It did. There was light more brilliant than a thousand suns.
The long low shadows of sunrise vanished. The new-rising
sun turned dim by comparison.</p>
<p>The voice from space spoke with intolerable levity. "<i>Come<span class='pagenum'><SPAN name="Page_97" id="Page_97"></SPAN></span>
up with your missiles ready! We'll give you ten thousand miles
of height. And if you try to duck out in overdrive....</i>"</p>
<p>The voice was explicit about what it would do to the
Mekinese-occupied areas of Garen if the battleship fled.</p>
<p>It came up to fight. It could do nothing else.</p>
<hr />
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