Hanson shrugged. "So?"

"Obviously I have made an error."

* * * * *

Doctor Hanson again shrugged, wondering what the man was getting

at. Electrical engineers confronted with a tough problem in vector

analysis consulted other electrical engineers; they did not bring their

unruly vectors to a psychiatrist or physician and hope to have them

solved. They came to medicine and psychiatry when they began trying

to integrate and plot the rhythmic sway of their secretary's hips,

or began to see the outline of a woman's lips in the catenary of a

suspension bridge.

"Obviously," nodded Hanson.

"So here it is again, Doctor. I've been back and forth across my

equations for the past eleven months and always come back to the same

errata."

"But what can I do?"

"Someone must check my equations--someone who is viewing them as a

competent, but unbiased, observer."

"An excellent idea."

Maculay spread helpless hands wide. "I sound like an egomaniac," he

said, "but there is no other man on earth who can follow my mathematics

but I."

"Not even the thirteen fellows who understand Einstein?"

Maculay snorted. "Understood," he said emphasizing the last syllable.

"Einstein was difficult when first made public; nowadays there are

plenty of men who know more about Einstein's theories than the man

himself. In my own case it is similar. No other man has had a chance

to study my theories; I have a few adherents who try to follow them,

but they have not the full time to put to the job and so they are far

behind. Besides, I'd trust none of them."

"I see."

"Ergo, Doc, what I say is this: You are to hypnotize me. You are to

give me a post-hypnotic suggestion that I am to forget the error in

my calculations, that I am to recheck them carefully and completely,

without knowing that some factor in them is in error. Then and only

then can I locate it; as soon as I locate this error, I am to remember

everything."

"Supposing your mathematics is not in error but is entirely

correct--suppose no error truly exists?"

"There is that possibility; but if the paradox is true, I will have at

least been forced to forget that I once believed an error existed. But

I must check this math as a competent and unbiassed observer."

"That can be done."

"Good; now let's get going and let's have no more nonsense about my

glands."

"This I can do; I will help you."

Maculay relaxed while the doctor produced his hypnoscope and set it up

on the table. With Maculay's cooperation, he was in the hypnotic trance

in a matter of seconds.

* * * * *

Doctor Hanson looked at the man. This was probably the first time that

the entire man had relaxed, mind and body, in years. But Hanson did not

see the point: Maculay may have run into a mathematical paradox, but

it was not of honest mathematics. Figures do not lie, but liars can

figure; it is more than possible that a brain will introduce an error

in order that the facts of the case be unrecognized. Hanson nodded

quietly. Man was mind and glands and body and appetite, bones, hide,

and ulcers. If a sick mind can produce a sickness of the body, the

reverse is true. Cliff's error was not in his mathematics; it was in

his life.

Of all the things Maculay needed, more work along the same line with

no relaxation was not among the list. What Maculay needed--or would

eventually get in a sanatorium--was a long period of relaxation. Fun

and games; a bit of competition; a hangover, and the sheer physical

delight of wrapping an arm about the slender waist of a female and

swaying to and fro to the rhythmic beat of tomtoms and the howl of a

well beaten clarinet.

At seventy, Jay Hanson had learned the impatience of youth. Maculay had

a lot of time to finish his equations. Scissor a year of Maculay's life

and he could then finish this; let him go on as he was and he would

burn himself out at a mere fifty.

He looked at Maculay seriously. "You have been working too hard," he

said.

The reply came instantly, like the echo of an automaton.

Hanson nodded to himself. It was obvious; when the burning drive of

that demanding brain was stilled, the subconscious recognized the fact

that Maculay was working too hard.

"Maculay's Equations are in error," said the doctor.

Cliff Maculay stirred, shook his head, and began to disagree violently.

Then he relaxed, since he had come there to solve an error; but he had

become tense again.

Hanson shook his head unhappily; this was going to take time and

effort. He must take this conversion slowly, since it was apparent that

the slightest touch upon dangerous ground would trigger the big brain

into reaction and perhaps undo in the space of a second the work of

several hours.

Gradually, prying and working, Hanson began to elicit information from

Maculay. Bits of character traits, an impulse suppressed, an attitude

formed in youth, an impediment created to shut out the demands of

normal living, desires for this and wants for that. Hanson looked at

them clinically, then either reversed them or let them stand, depending

upon their possible affect. Each phase took time; it is not simple to

take a man who has never held a billiard cue and make him believe that

excellence at the pool table is an evidence of a sharp eye and fine

coordination instead of the result of a misspent youth. And Cliff's

attitude towards women was troublesome. His mother, the youthful

reading of too much of King Arthur, or Lord knew what, had given

Maculay the odd idea that a woman was a sort of goddess, not to be

touched by the hand of clod-like man. To reverse this attitude towards

a more practical attitude was difficult, since the reversion must not

be complete. Hanson did not want Cliff to reverse completely, to the

other extreme, where the man would go out and start treating women like

galley slaves, punching bags, or chattels--which, in fact, was about

the way Maculay had expected to be treated.

Hanson took a brief rest from the hard job, by recalling and telling

Maculay every risque story he could remember.

Then he was at it again, prying and probing, and reversing Maculay's

attitude on gambling, liquor, tobacco, and politics. He made a slight

revision on Cliff's idea of proper dress; the physicist had a horror

of appearing dirty, even when engaged in the dirtiest of jobs. With

some effort the doctor convinced Maculay that a mechanic emerging

from beneath a car with a face full of grime was not automatically an

undesirable character, either to men or women. The crux of the matter

was whether he liked that condition of dirt or not.

* * * * *

With a number of factors accomplished, Hanson took a deep breath, felt

his pulse, counted his heartbeat and respiration, and fished for a pill

from his desk and swallowed it quickly before he went on. The hardest

part was to come.

Cliff took himself seriously, far too seriously. With delicate verbal

barbs, Hanson began to poke fun at some of the imbecilities of pedantic

reasoning. Maculay offered resistance at first, but Hanson worked him

over the ground carefully, pointing out that Maculay, the only man in

the world capable of understanding the variable-matrix wave mechanics,

was in no position to snort at his fellow man. After all, Gertrude

Stein had once gained great popularity on the theory that no one could

understand her and therefore she must be sheer genius. Eventually he

had Cliff laughing over an old limerick:

_The wonderful family Stein,

There's Gert, and there's Ep, and there's Ein.

Gert's poems are bunk;

Ep's statues are junk,

And nobody understands Ein._

Hanson worked over Maculay's Equations with a bit of acid humor. In

third person, he had Maculay chuckling over the physicist who worked

for years on some mathematics that did not come out even. Gradually,

the doctor convinced his patient that he was not Clifford Maculay, the

renowned abstract mathematician, but Maculay's nephew--the black sheep

of the family--who viewed the brainy members with as much distaste as

they viewed him. Young Cliff had often been mistaken for his brilliant

uncle, and found this funny, since he felt himself smarter than his

namesake; he, young Cliff, had fun whereas his uncle had only hard work

to show for his life. Actually, any pondering of his uncle's work made

young Cliff sick to his stomach, and he was glad to ignore such things;

the whole theory was so much stupidity.

And for one year, Clifford Maculay, physicist, would be as different

from his former self as was possible without breaking the law to bits.

"At the end of this year, you will return to your apartment in

Washington, take a good night's sleep, and awaken as Doctor Clifford

Maculay. Then, and only then will you remember; and you will realize

furthermore that this job of relaxation has been forced upon you

for your own good. You will then be able to solve the error in your

calculations."

Hanson paused for a moment, pondering as to the advisability of

giving the hypnotized physicist a key-word to bring him out of the

post-hypnotic suggestion. But Doctor Hanson was seventy years old; he

knew all too well that a year from this moment he might be dead and

gone. He viewed it calmly, but not disinterestedly, and decided against

a key-word; it only introduced a conflicting factor.

Let the man awaken of his own accord.

Then he awakened Maculay, who sat back in his chair with a chuckle,

reached for a cigarette from the box on Hanson's desk, and puffed at it

with relish.

"How do you feel?" asked the doctor.

"Like a million," said Maculay.

"Good. Come back in one year. I'll have my girl make an appointment.

For now, we're all finished."

* * * * *

Doctor Hanson stood and watched Maculay head for the door; the

physicist's step had a certain bounce, curtailed by the fact that the

unused muscles of his body were not used to the catlike stride of the

completely balanced, healthy man. A few days of that sort of bounce and

Maculay would have it. The door closed exuberantly and Cliff was on his

way to a one-year binge.

He paused once outside of the doctor's office. Ava Longacre was bent

over some notes, and Cliff viewed her contemplatively. She stood up and

smiled at him. It was a sort of professional smile, the kind she gave

all of the doctor's visitors; it made no difference to Ava whether the

visitor were seventy or seventeen. She gave each of them the same dry

smile.

Cliff crossed the office in a quick stride and put both hands on her

shoulders. He drew her forward, felt her instant stiffening relax; with

a cheerful upsurge of spirit he put an arm around her, tilted her face

upward with his free hand and kissed her. He felt her yield to him,

press against him softly, then respond.

Cliff knew he could have her, but in that moment he also knew that he

really did not want her. Ava was a bit over thirty; she had a quiet,

mature quality--good-looking, but far past the radiant flush of youth.

A hard-working woman, efficient, intelligent, Hanson's nurse, medical

aide, and receptionist, did not offer the fun and frivolity that Cliff

Maculay sought.

He stepped back and smiled down at her. "Nice," he said with a chuckle.

Then he kissed her again, lightly on the mouth, turned, and left the

office.

Her cheeks burning, Ava Longacre stamped into Hanson's office.

"What goes on?" she demanded. "What on earth did you do to that man?"

"Why?"

"He came in here like the proverbial absent-minded professor, his eyes

blank and sort of muttering to himself about radiation mechanics or the

like. He didn't even look at me."

"Then?"

"On his way out he sort of grabbed me and kissed me."

Hanson nodded appreciatively. "You liked it?" he chuckled.

Ava sat down, landing in the chair with a thud. "When a man puts a hand

on me and my knees turn to jelly," she said quietly, "I oscillate madly

between hating his guts and wanting him to try it again. That sort of

thing would play hell with a girl's morals."

"Shucks," chuckled Hanson. "I've just violated all of the rules of

medicine. I've just treated a man against his will--and turned an

introvert inside out."

"You sure did," nodded Ava.

"He'll be back again in a year--and normal, then."

"But how do you turn an introvert inside out?"

"Reverse his sense of values."

"But--"

"His memory pattern? That's difficult. To make him more or less stable

for that year, I sort of tampered with his memory on a temporary basis,

also. He thinks he is all sorts of things that he has never been--but

has probably wanted to be from time to time."

"Is that why he kissed me?"

"Partly. But you're the woman he should have when normal, not as he is

now. That's--"

"So you gave him a false memory, complete with a lot of details to

explain just about every possible question, hey?"

"Yep."

"And just how was this background furnished?" she demanded.

"Remember it is only temporary and need not be complete. Just

sufficient to justify its being."

"Don't quibble."

Hanson laughed. "Well, when a man of seventy starts to furnish a bit

of background for a youth of thirty-odd, what better than a few true

experiences from the old man's past."

Ava Longacre snorted. "I'll bet you were a hellion in your youth," she

snapped. "And in your old age you're a nasty old lecher."

Hanson squinted at her. "I wish I were forty again," he leered. "But

worry not, m'lady. Maybe the basic idea was mine, but Maculay kissed

you on his own account. And I commend his taste."

Ava uttered a single, explosive "Oh!" and stalked out angrily, slamming

the door behind her. She leaned against the hardwood panels and

listened to the roar of Hanson's laughter die in a slow gurgle. She

pegged it properly as part hysteria; the hours of hard mental effort

spent on Maculay would have taken a lot of pep out of the Old Boy,

and he would then clutch at anything remotely amusing and make an

uproariously funny incident out of it. But this was not funny.

She remembered Maculay's hand on her, and her body went supple against

the door. Then by sheer mental effort she snapped her head erect and

walked from the door, determined to forget it.

Ava did not recognize the fact that for hours, days, or months--and

perhaps forever--she might be telling herself that it was a good thing

to forget about.

2

The _Island Princess_ took off on schedule, arrowed into the blackness

of space, and set her nose-sight on Venus. She was forty hours a-space

when it happened. And the _Island Princess_ was one of the four

spacecraft close enough to the thing to have its presence recorded in

the celestial globe.

It came with a roar of sound from the radio, which eliminated all

communications instantly, and continued on a diminishing power for an

hour until it fell below the cosmic noise level. It appeared in the

celestial globe as an ebon shaft; measurements made it a half mile

in diameter but extending from beyond the range of the globe in both

directions. It was as straight as it could be. On the other ships, the

same facts were noted.

Upon the several planets of the solar system, cosmic-ray counters

went crazy. Showers of unprecedented violence bathed the solar system

in a raging torrent of high-energy particles. The showers continued,

diminishing in intensity as time went on; the slower particles arriving

last, of course.

But the one thing that caused consternation throughout the entire solar

system was a sickening _shift_. Spacecraft and planet gave a tiny,

queasy slip, sort of like a heavy man who has just trod upon a grape.

Things move according to their mass and according to their distance

from the black shaft of energy. On planets, it was just enough to

cause fear; the most infinitesimal waver in the constant course of the

planets awakens racial fear. In spacecraft, the shift was more violent,

but here people were prepared for a bit of wobble.

[Illustration: On planets, the shift was just enough to cause fear;

auroras flamed for an hour....]

The auroras flamed bright for an hour; as soon as the shift had

shaken the wits out of every human in the solar system, the big

observatories set their big glasses on the fixed stars and consulted

quadrant-protractors to ascertain what the shift had done. On

photographic plates of operating telescopes, the shift was barely

noticeable upon the images of brighter stars. The dimmer ones had

danced aside and back too swiftly for the emulsion to register. But it

had been a swift jiggle up and back; now things were as they had been

once more save for the big mystery that caused the radio lanes to buzz,

and made men ask their neighbors what it could have been.

* * * * *

Captain Bardell of the _Island Princess_ went to the salon after the

radio had told him what little could be told about the incident. He

told the passengers what he knew as a matter of interest, and because

they had been as close to the phenomenon as any other human being.

Cliff Maculay, bent back across the bar with his elbows hooked over the

edge and a glass in his right hand, chuckled amusedly.

"But this isn't funny," complained a comely woman in a strapless gown

at his left.

"Dorothy, darling, you're wrong," he laughed.

"I suppose you know what it is?" came the cynical reply from the

red-head on Cliff's right.

"Helen, that 'thing' was a manifestation of the application of

variable-matrix wave mechanics to intrinsic space by the real and/or

unreal roots of negative space."

"That's utter gibberish."

Maculay laughed. "Verily," he chuckled. "But my revered Uncle Clifford

will--about now--be telling the world the same thing in about the same

incomprehensible collection of dictionary fodder."

Captain Bardell heard, and came to stand before Maculay. "Clifford?" he

said uncertainly. "Clifford Maculay?"

"Right name but the wrong character," said Maculay, sipping from his

glass. "Doctor Clifford is the genius in the family; Cliff, the nephew,

has only genius for getting into mischief without getting into trouble

about it. To each his own," he chanted, lifting his glass in a toast.

Bardell was openly disappointed. "I'd hoped you might give us an idea

of what was going on."

Maculay turned, rapped the bar with the heel of his glass to get

attention, and then turned back to the captain. "I can," he said

cheerfully. "But do you have the faintest idea of why nephew was

relegated to the Outer Darkness?"

Everybody, listening to Cliff, shook their collective heads.

Maculay laughed. "They had me studying under him for years. Doctor

Maculay is a slave driver and a martinet. Cigarettes, liquor, and wild

women are annoying things that detract from the single-purposedness of

life. Doctor Maculay is the kind of duck who would rather work overtime

than make frolic with a dame--and he expects everybody who works with

him to do the same. He also pays them accordingly, since a small room,

a sterile diet, and a minimum of clothing are all that is necessary for

any man dedicated to science."

"So?" asked Bardell, a bit angry at this man for belittling one of the

solar system's greatest minds.

"So Cliff, the ne'er-do-well, used to take a few of Uncle Clifford's

well-flanged ideas, add a character, stir well with a villain and a

dame, and emerge regularly with a bit of science fiction. I was Ed

Lomax, one of Larimore's cover names until John used the right name

instead of the pseudonym, and people started to write fan letters to

Clifford Maculay, MM, PhD, et al. Shortly afterwards I was out of a

job."

"Then you do understand some of this?"

Maculay grinned and nodded.

"But Doctor Maculay will be able to figure this thing out?"

Cliff nodded again, and smiled. "Good thing, too," he chuckled. "He

is the only man in the system that can handle it without going off

half-cocked. Maculay may be a stuffed shirt but he is no imbecile.

Tinkering with inverted space--or pouring a quart of nitric acid over

a half-gallon of glycerine--might be deadly unless you understand

what you're doing. Maculay is super-cautious about anything that

he does not understand completely. I cannot say the same for his

underlings, who casually point out that mankind had been using

electricity for years and years before they knew anything about it.

But," he said with a laugh, "enough of the manifestation of the unreal

roots of variable-matrix wave mechanics. Maculay's wastrel--but

interesting--nephew is about to enjoy life."

Cliff winked at Dorothy, patted Helen on a bare shoulder, and then led

Alice towards the dance floor.

"Doesn't this mean anything to you?" she asked him.

"Uh-huh," he said with a smile. "At about three cents per word; that

black shaft of energy is an idea coming to life."

"What kind of idea?"

"Um--let's see. That black shaft of energy was really a spacecraft,

passing through the solar system at a velocity higher than the speed of

light. Some extra-solar race, colonizing the galaxy. What we detected

was the space-wake of such a craft. You have no idea of the energy

kicked up when a body passes through space at a velocity higher than

that of light. Then Our Hero, bullied by his superiors, shows that he

has measured the energy-curve and solved the secret of interstellar

travel."

A slight frown came to Maculay's face. "The trouble is that this

super-galactic race has learned how to create negative space before

the ship and re-create positive space behind it to keep from having

the--the--" A bead of sweat came upon Maculay's face and he became

nervous. He looked around, almost wildly, before continuing,

"the--entire universe," he concluded lamely. "Negative space is

self-propagating, you know." Maculay finished this last with a wince of

pain.

Then Maculay straightened up with a laugh. "That's lousy," he said.

"Larimore wouldn't buy it. We'll have him go out and meet some

four-armed monsters who think that human meat is superb. That's crummy

too, but it's an idea. C'mon, m'lady, let's dance!"

* * * * *

The telephone rang on Doctor Hanson's desk. It was Ava, from the outer

office. "Man by the name of Redmond to see you, doctor," she reported.

"Has he an appointment?"

"No, that's why I'm calling. He claims it is a matter of impor--No,

Mister Redmond, you cannot go--"

The doctor's door opened abruptly and the man called Redmond strode in.

"Where is Maculay?" he demanded sharply.

Doctor Hanson looked up at Redmond calmly. With insulting deliberation,

Hanson eyed the man, while Redmond began to fume. Redmond was tall and

thin, a bit too tall and a bit too thin in the doctor's estimation.

He was thirty to Maculay's thirty-eight, but did not smoothe his

impatience and ambition behind a cloak of politeness.

"Sit down, Mister Redmond. I'm interested in you."

"Where is Maculay?" came the repeated demand.

Hanson smiled slowly. "I'm interested in trying to discover just what

it is about abstract mathematicians that makes them think that they

can stamp their way through life, disregarding not only the rights of

others, but their own as well."

"Enough of this damned foolishness--"

"Shut up, you young whippersnapper!" roared the doctor in a voice that

rattled the windows. Redmond shut up. "I'll have respect from you,

Redmond. And if I don't get it, you'll leave. Understand?"

Redmond bristled.

"Relax," said Hanson. "I'm no longer able to punch your face as you

request by your actions, but I know several men who would be most happy

to help me in this matter. Now, what is it that you want?"

"I want to know where Maculay is."

"I don't know."

"Damn it, you do know."

"Redmond, I'm not a liar."

Redmond leaned forward over the doctor's desk. "Maculay came here," he

said, "and I know why. Maculay did not return from here, and I want to

know why."

Hanson leaned back in his chair. "Doctor Maculay came here and

discussed his difficulties with me," he said. "During the course of

the discussion, it became quite evident that Maculay was on the verge

of a nervous breakdown because of too much hard work and too little

relaxation. I convinced him that a long vacation would enable him to

live and be productive longer than he might enjoy if he went back and

killed himself on his job."

"So where did he go on this vacation?"

"Maculay admitted that if a single soul knew his address, they'd be

sending him problems within a week. He took off, destination unknown."

"Did he say when he would be back?"

"In one year."

"A year! My God! We can't wait!"

"Can't is an impossible word," remarked Hanson.

"But we must find him."

"You might start combing the solar system," suggested the doctor.

"Impossible. Yet--"

"Redmond, there have been many indispensable men in history who were

not so indispensable that their leaving caused affairs to stop short.

I admit that their plans often flopped, or that history took a little

longer to get itself made when their driving force died. But not a man

on record has ever been truly indispensable."

"But you don't understand," complained Redmond. "It's about that blast

of energy that shocked space."

"I guessed as much. What is--or was it?"

"We don't know; Maculay does, or can deduce its meaning."

* * * * *

Redmond started to stride up and down the office at this point, talking

half to himself and half to the world in general. Through the still

open door. Ava could hear him, and since the danger of attack had been

averted, she decided to close the door. But Hanson waved her inside

where she sat in one of the inconspicuous chairs along the far wall.

Both Ava and the doctor watched Redmond quietly.

"From what little we know of it by direct observation it came all at

once--a shaft of energy as instantaneous as birth. Where once was empty

space, this bolt of energy was created. The energies it created showed

no directional qualities, and it extends as far in either direction

from here as we care to imagine. The distant energies are still

coming in from both directions, diminishing because of the tremendous

distances, but still showing nothing directional."

"But this shaft of energy must have come from somewhere?"

"Did it?" exploded Redmond. "Did it come from somewhere--or did

it burst into being instantly from one end of the universe to the

other like the creation of a rope from nothing all along its length?

Actually, we know this: Its duration was as close to instantaneous as

anything might be. The rest of the phenomenon was merely persistence of

the energies it created."

"Those are questions that I cannot answer."

"Maculay could."

"You assume that this thing might be in Maculay's field?"

Redmond nodded. "We charted the energy-curve," he said. "Then one of

the boys integrated the curve and came up with a formula for the curve

which I saw and without any trouble at all reduced to one of Maculay's

Equations. Do you know what this means?"

"No. Of course not."

"This means that the validity of Maculay's Equations is proven

fact. Just as Maxwell's Equations were proved by the existence of

electromagnetic waves in nature, so are Maculay's Equations proved by

the existence of this manifestation of the real and unreal roots of

space, occurring in nature." Redmond resumed pacing again. "What is

maddening," he said, "is the fact that we do not know where it came

from."

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