Hedgerly nodded understandingly. "But Marie Baker wouldn't."

"Let's go out, Peter," pleaded the girl earnestly. "This unwelcome bird

makes me feel like a female homewrecker!"

Hedgerly beamed. "Do go," he said. "And enjoy yourselves until I can

locate Peter's future wife--my grandmother."

* * * * *

The big machine should have been quiet according to theory. It had no

moving mechanical parts to hum or gears to clash nor levers to chatter.

It had for its moving-member a magnetic field that varied on a pure

sine wave of intensity from a terrific flux-density in one direction,

through zero, and thence to an equally terrific flux-density in the

opposite polarity. At one newspaper interview as the machine was being

built some reporter had erroneously noted that the magnetic field

strength at maximum was strong enough to affect the iron in your blood.

This was intended for sheer hyperbole, but the fact remained that the

magnetic field between the big pole pieces was strong enough to warp

the path of light. Well, the shift _could_ be measured with the most

delicate of optical instruments.

Theoretically, a varying magnetic field should not make a sound.

Actually, it did. The field at maximum was strong enough to cause deep

magnetostriction of the magnetic metals of the machine. They vibrated

in sympathy with the varying field: their dimensions changing enough to

set up sound waves in the air of the room.

So the theoretically silent machine actually made a clear humming roar

that shattered the eardrums and seemed to press offensively on the

skulls of those working within the chamber.

Even Peter Hedgerly found it oppressing after an hour or two, and he of

all men should have been used to it.

He removed his eye from the observing telescope and blinked to relieve

the strain. He looked up at Joan, nodded affably, and his right hand

snapped the main switch.

The terrible humming roar died. "Hello," he said brightly. "What brings

you here?"

Joan Willson laughed sourly. She handed Peter a newspaper. Peter bent

his head to read:

Personal! Marie Baker, Age 27, weight 114, brunette, brown eyes,

minute scar on left thigh. Social Security Number 340-01-6077

please contact--

"I don't want her!" stormed Peter.

"The advertisement says you do," cooed Joan.

"Now look, Joan--"

She laughed and laid a cool hand on his cheek affectionately. "I know

you don't. But I did want to point out that your--grandson--is wasting

no time."

Another voice interrupted. "Naturally not," interjected Hedgerly.

"After all, I'm here to see that things do go according to history."

"History be damned," snapped Peter. "I--"

"Really have very little to say about it," smiled Hedgerly. "You'll do

exactly as ... as you did!"

"Then," blazed Peter, "why not let nature take its course? If I'm to

meet and commit matrimony with this Baker dame, I'll do it!"

For the first time, Hedgerly looked less than the complete master

of everything he surveyed. "It is also historic fact," he said in a

sepulchral tone, "that I add my efforts to make history satisfy itself.

You see," he said, brightening, "how it all comes out!" He dug into

an inside pocket and came up with a wallet. From it he extracted a

newspaper clipping yellow and brittle with age. "Here is the original.

I just copied it for the advertisement."

Peter took the aged clipping and read it. His hands shook and the

clipping fell apart.

"No matter," smiled Hedgerly. "Its job is done."

"Is done?" demanded Peter.

"Of course. Marie Baker will be at your apartment this evening."

"I'll scratch her bald-headed," threatened Joan.

Hedgerly shook his head. "No, you won't," he said positively. Then he

looked down at Peter and his eyes ran over the experimental setup.

"It won't work," he said to Peter. "You're on the wrong track. It is

impossible to accelerate and focus and direct the neutron. The neutron,

possessing no charge, is therefore unaffected by either magnetic or

electrostatic fields."

Peter looked up quietly. "I've evidence to the contrary," he said.

"We believe that the neutron does possess a charge: that it is

theoretically impossible for anything to exist without some charge,

though the charge may be exceedingly minute. We believe the neutron to

be possessed of a charge of plus or minus--depending upon the moment of

intrinsic angular momentum--ten to the minus fifteenth electrostatic

units less than that of the electron. Therefore--"

"You will find that the experimental evidence you get is impure," said

Hedgerly. "You'll save time if you abandon this project."

"Indeed? And what should I take up?"

"You'll do history a better turn if you take to investigating the

magnetic properties of mass."

"Is that a matter of history, too?"

Hedgerly shrugged. "If I told you all I know about it," he said in a

superior tone that made Peter want to commit homicide, "then you'd

have too much time to sit around and feel frustrated because fate is a

written book."

"Spinach," snorted Peter. His hand hit the main switch again and the

humming roar leaped out at them from all sides. Peter grinned as he

noted the wrist watch on Hedgerly's arm. Unless the character had a one

thousand per cent nonmagnetic movement, the insides by now would be

keeping the Devil's Own Time.

* * * * *

It was nine o'clock. For the eleventh time since dinner, Peter leaned

out of his study and called: "Now?"

Hedgerly shook his head. "Not yet," he said.

"Well," said Peter this time. "Come in here. I'm on the trail of

something."

"I know," replied Hedgerly. "You've discovered the Hedgerly Effect."

"The what?" stumbled Peter.

"Named after its discoverer. You're quite famous in the future, you

know," replied Hedgerly.

"What is this Hedgerly Effect?"

"The one you've just discovered," replied Hedgerly.

Joan Willson, present because of sheer curiosity pertaining to this

Marie Baker creature whom she was prepared to dislike on sight, looked

up from her book and drawled: "Oh brilliant repartee. You sound like

that Cyril Smith routine that goes 'Who's he? Who's who? Him, the man

in the picture. What picture?' And so forth for about an hour."

Peter smiled. "I suppose," he said. "But it's his fault, not mine. This

effect is a sort of artificial generation of gravitic force."

Hedgerly nodded. "The first historic discovery that proves the

relationship between magnetic phenomena and gravitic force. Now we're

on the right trail," he concluded. Hedgerly walked over to the small

barrette and mixed himself a drink. He lounged back against the bar and

lifted his glass. "To my grandfather," he said, "The discoverer of the

Hedgerly Effect!"

Peter looked at Joan weakly. "It's fratricide to kill a brother,

patricide to kill a father, homicide to kill just anybody, infanticide

to kill your son, but what is it to kill a grandson?"

Joan looked Hedgerly up and down and her lip curled in derision.

"Insecticide," she snapped. "Ignore him. Maybe he'll go away. But

Peter, what does this gravitic effect mean?"

"I'm not too certain," replied Peter wrinkling his brow. "Of course,

since gravitic fields do act upon mass without charge, we can now

filter out, accelerate, and focus the neutron--or we will be able to

as soon as we get this effect refined. And if we can generate gravitic

fields at will, we can nullify the gravitic mass or gravitic attraction

of masses. That means a complete revision of all the mass-ratio tables

pertaining to space rockets. In fact, it may do away with rockets

entirely. And the following is conjecture but may be possible:

"The reason that the limiting velocity is the speed of light is due to

the fact that the mass approaches infinity as the speed of light is

reached. That means that no possible energetic principle can be used to

attain the speed of light since this increase of mass is a statement of

the mass-energy put into the article accelerated. In other words, Joan,

to increase the velocity of anything to the speed of light requires

that you pack into it the equivalent energy required to raise its mass

to infinity. Meaning of course, infinite energy.

"However, if this local generation of a gravitic field can be used to

nullify mass, we can make a space-ship that need not increase in mass

as its velocity increases.

"Providing that my reasoning is any good. This is just conjecture and

guess. I don't know yet how much this gravitic generator will cover."

"You've done a fair job so far," said Hedgerly, mixing another drink.

"Of course, you'll let it drop there."

"Let it drop?" yelled Peter. "With a thing like this at my doorstep?

With the twinkle of a slide rule I can become the Originator of

Interstellar Travel, and you expect me to let it slip?"

Hedgerly smiled tolerantly. "The discoverer of the Hedgerly Effect does

not become involved with space travel," he pointed out with a knowing

air. "He does become the layer of the cornerstone for Time Travel,

which we believe is as important."

Peter looked glumly at Joan. "Methinks of suicide," he groaned. "I

invent Time Travel and for the next million years my invention becomes

the curse of mankind. Pandora's Box never let out any trouble-scorpion

as bad as people like my temporally-gadding grandson!"

"Now, grandpop, don't be bitter," laughed Hedgerly.

"Grandpop?" yelled Peter. "I'll--"

The doorbell rang, interrupting a string of threats. Hedgerly stepped

springily to the door, opened it, and said: "Please come in, Miss

Baker. We're expecting you."

Peter whistled.

Joan hissed.

The room became three degrees warmer.

Miss Marie Baker was curvaceous. Miss Marie Baker was dressed to prove

it. Miss Marie Baker knew it. The Petty-Girl calendar on Peter's living

room wall took on a drab and lumpy appearance and on the table beside

the divan, a magazine cover became blank as the model headed for the

powder room.

Marie Baker spoke, and Arthur Sullivan moved in his grave because the

sound of her voice was that reminiscent of that great Lost Chord of

music. "I'm quite mystified," she said.

Hedgerly took her slender hand. "Please come in," he said. "And we'll

try to explain. You've come, Marie, to be introduced to your future

husband!"

The door behind Marie filled again--and filled is the proper term. He

stood six feet four, the floor creaked under his two hundred and twelve

pounds of sheer muscle, and the litheness of his step carried him with

pantherine grace. "May I point out," he said in a voice that reeked of

Harvard, Cambridge, and a complete disregard of the letter 'R,' "that

Miss Baker may be already acquainted with her future husband?"

Hedgerly faced the giant. "Please," he said in a pained voice. "I'm

having enough trouble now without your unwelcome aid. Any relationship

between you and Marie Baker must shortly become, at best, platonic."

A small brass figurine of Rodin's Discobolus took a sidelong look and

made the brazen observation that being platonic with such as Miss Baker

was an idea never suggested by his friend Plato. Plato had too much

sense.

"Just how do you figure in this?" demanded the giant.

"Have we met?" asked Hedgerly.

"I'm Anthony Graydon. And my query goes still."

"Pleased to know you, Mr. Graydon. I trust your intentions toward Miss

Baker are simple?"

"Miss Baker happens to be wearing my engagement ring," returned

Graydon. Hedgerly looked, and saw a bit of glitter about the size of a

small pigeon's egg on her left hand.

Hedgerly shook his head sadly. "May I introduce Miss Willson?" he

suggested. "Miss Willson, will you meet Mr. Graydon? Perhaps, Mr.

Graydon, the no-longer-needed engagement ring will fit Miss Willson."

Anthony Graydon looked down on the time-traveling man with grand

contempt. "You have all the sheer, cockeyed assurance of an egomaniac,"

he said. "Is Marie supposed to marry you?"

"Oh no," explained Hedgerly. "She'll marry him. Miss Baker, may I

present Mr. Hedgerly. Marie, this is Peter."

He took Anthony by one arm and Joan Willson by the other and steered

them towards the door. "Let us leave them alone," he said. "They must

become acquainted."

"Look," snapped Anthony, "this has gone far enough--"

"Please," interrupted Hedgerly, "this is serious. Miss Willson will

tell you that what I say is true, however unwilling she is to face the

bitter truth. It is only a matter of time before Miss Baker becomes

Mrs. Peter Hedgerly."

* * * * *

The door closed softly behind the three of them before Tony Graydon

turned to Hedgerly and said: "What kind of high-octane are you using in

your crystal ball these days, Swami?"

"Swami? But please, this is not the work of a charlatan. This is

historic fact."

"Sure. So is my girl marrying that bird, huh?"

"They will marry," replied Hedgerly.

"Yeah? That's not very complimentary to me," snapped Graydon. "I've

been number One man with Marie for quite some time now. I hardly

think--"

"Give them time," replied Hedgerly succinctly. "In a short period, the

propinquity in which they are thrust--"

Graydon whirled Hedgerly around by grabbing both lapels of the coat

in one large, well manicured hand. "Propinquity!" exploded Graydon in

full volume, which was enough to cause endless echoes up and down the

corridor. Then even the echoes had echoes for a full minute.

Joan Willson backed out of the way. The hand that enclosed both lapels

of Hedgerly's coat looked well manicured and in excellent care, but

she had a firm hunch that _well-tended_ included the matter of keeping

it firm, hard, and dangerous. Graydon was no cream puff, and of a size

where even a cream puff is respected.

But Graydon did not dust his knuckles off against Hedgerly's nose.

Breeding came to the fore, and Graydon let the other man relax.

"Propinquity," he said in a level voice that sounded very firm,

"presupposes that you and I and possibly Miss Willson are going to

spend some time in hurling my fiancee and that character together."

"Of course we are," replied Hedgerly, with all of the assurance in the

world.

"We--are--not!"

"Oh, but we are," said Hedgerly. "And I'll tell you why."

Graydon smiled bitterly. "This," he said to Joan, "is going to be

good." He looked at Hedgerly. "It had better be!"

* * * * *

Marie Baker shrugged her shapely shoulders and looked very puzzled. "I

don't understand," she said.

"Miss Baker, please let me explain," pleaded Peter. She nodded, and

Peter plunged into the explanation as completely as he could. Then--

"Peter," she said quietly and very sincerely, "I'd hate to hurt your

feelings, but I'm afraid that ... that--" her magnificent voice trailed

off weakly as she fumbled with the pint-sized diamond on her left hand.

Peter patted her shoulder. "I am glad you are a sensible woman," he

told her. "I'm rather taken up with Joan, you know."

"Then what can we do?" cried Marie.

"I don't know," grumbled Peter. "This is the way I see it; he's ...

uh ... our grandson, and--" he looked at her curiously. "Uh ... what's

the matter?" he asked suspiciously.

Her laughter came bubbling up from below the surface and it tinkled

across the apartment like the sound and fragrance of a bubbling

fountain. It was a genuine laugh deep and hearty and just long enough

to be enjoyed. Then she explained: "I'm sorry--not really sorry about

laughing, I mean, but look, Peter, have you ever considered that you

and I have been formally introduced by our grandson?"

"It sounds slightly indecent to me," grumbled Peter.

Marie shook her head. "If anything," she said quietly and sincerely,

"is _fait-accompli_ it is the very definite person of--our grandson."

"I'd been psychopathically avoiding that," he said. "Trying to ignore

it."

"It looks," she began in a trapped voice, "as though we're stuck. If

that bird is really our grandson, we might as well give in. Come here,

Peter, and hold my hand."

He took her hand gingerly.

"You may kiss me, Peter."

"Thanks," he said dryly, "I'll keep your offer open until a more

propitious date. Meanwhile, Miss Baker, I'll continue to feel slightly

angry at being told what to do; when to do it; and with whom. Even

though the Book of Acts is complete down to the final decimal."

Marie laughed cheerfully again.

He looked at her curiously. She stopped laughing. She leaned forward

gracefully and offered him her right hand again. "Shake," she said.

He shook.

"Now," she said seriously, "let's at least be friends. I'm not inclined

to take to being hurled at any man's head. I might add 'either.' But

if this Book of Acts is the complete thing it seems to be, we'll find

it out soon enough. But," she said leaning back against the divan, "I

won't marry any man I do not love. And I happen to love Tony."

Peter nodded. "I happen to love Joan Willson," he said. "Until I

change, we'll let it continue that way."

"O.K.," chuckled Marie Baker. "Gin Rummy!"

"Right," said Peter reaching for a deck of cards.

* * * * *

Graydon looked at Hedgerly across the top of his glass. "If you're from

the future," he said, "you could do some real chipper things."

Hedgerly nodded. "I know what you're thinking," he said. "You believe

that I have the advance dope on the stock market and other items for

speculation."

"Well?"

"I have. Of course, my time happens to be some sixty years after now,

understand?"

"Perhaps, what are you driving at?"

"I'm trying to tell you," said Hedgerly, "that if I help you amass a

fortune on speculation, this will be known fact by my time."

"So?"

"So," said Hedgerly, "the only thing I've done--the only thing that is

historic fact--is that which I'm going to do for proof. Just one thing."

"Go on."

"I'm going to write something on this envelope. Then I'm--Wait. We'll

do it. I came prepared."

He wrote a sentence on the flap of the envelope and handed it to Joan.

"Keep it carefully," he told her.

"Now," he said to Graydon, "There will be a big nine-event day at Bay

Meadows tomorrow. I have here a listing of nine horses. You will put a

sum of money on these nags and you will become famous as the first man

ever to win a complete nine-horse parlay."

"Interesting if true," said Graydon, looking over the list. "We'll know

tomorrow."

"We'll go out to the track tomorrow," said Hedgerly.

"What about Marie and Peter?" asked Joan.

Hedgerly smiled. "True love," he said, "never runs smooth. Peter and

Marie are busy playing Gin Rummy now, and both of them agreeing that

they'll have none of this. But propinquity--"

The low growl in Graydon's throat stopped him cold. Perhaps his

history told him to stop.

* * * * *

The roaring hum of the generator made speech difficult but not

impossible. Marie, with pencil in hand, was interestedly recording

the data that Peter was calling to her. His lips brushed her ear

occasionally because it was necessary to get the figures across through

the din. The brush of lip against ear was not unnoticed; under the

circumstances it was hard to ignore anything, even the least minute of

personalities. Finally he snapped the switch and the roar died.

"That's it!" he said exultantly.

"It's beyond me," said Marie, looking dazedly at the solid bank of

figures she'd written down.

"That's because you've never been exposed to the stuff before. Come

on--I'll show you."

He snapped the safety switch and watched the last dying flicker of the

radiation counter above the control panel. Then he pressed a button

and a huge door creaked open. He led Marie along a zigzag hallway,

explaining, "Radiation products, like all Chinese Devils, travel only

in straight lines."

Then, inside of the shielding, she saw the generator.

"This made that terrible racket?" she asked.

He nodded.

"I'd hate to be inside here when it's running," she said nervously.

"Me, too," he grinned. "But I daresay the radiation would kill you long

before the noise did."

"Oh!" she gasped, getting the implication of the dangers of nuclear

physics in one gulp.

"This," he said, "is brand new. In the center is a small, thin-walled

brass container filled with radon gas, and suspending a cloud of finely

divided beryllium. This produces neutrons. Very slow neutrons not

worthy of mention compared to most nuclear reactions. However this is

but a source instead of a complete deal.

"The neutrons emerge from the container in all directions, but are

urged into motion by a swift increasing pulse of gravitic force. It

used to be magnetic, but it is now gravitic. We've changed it over

according to my findings of recent work. Then with the neutrons moving

in a cloud, we alternate the gravitic field, varying it from attraction

to repulsion. Just like a cyclotron uses radio frequency energy in the

Dee Plates, we use gravitic energy to accelerate neutrons.

"Probably doesn't mean too much to you," he said with a smile. "But for

the first time in history we can hurl a beam of neutrons of any desired

range of energies at a target in any desired cross-section."

"It must be important," smiled Marie. "It is so complicated."

"Sophistry," he grinned. "Remember those 'nonsense engines' that were

full of spools, levers, gears and stuff: all working furiously but

producing nothing?"

"'A tale told by an idiot,

Full of sound and fury,

Signifying nothing,'"

quoted Marie.

"Sort of like our friend Hedgerly," grinned Peter.

* * * * *

"Speaking of the devil," came a voice. Hedgerly came in through the

winding passageway, followed by Graydon and Joan Willson who came

last. Joan passed through the group until she could take Peter's arm.

"Peter," she said. "I'm wealthy."

"So?" he said.

"Hedgerly produced a nine-horse parlay at Bay Meadows. Mr. Graydon ...

Tony, that is ... put down a ten dollar bill on it in my name. I'm now

possessed of about sixty-three thousand dollars."

Ignoring the statement, Peter squinted at Joan and asked: "It's 'Tony,

that is' now?"

Graydon scowled faintly. "Let's all be stuffy," he said.

"Sorry, Graydon," said Peter. Graydon nodded. He thought he understood.

He tried to, anyway. As irking as the situation was to him--having this

character Hedgerly blithely hurling his fiancee at Peter's head and

callously telling everybody else that they might as well give up trying

to change Fate--he believed that Peter and Marie both were more than

irked at being hurled together. Peter was not a boor, nor even stuffy.

Joan filled the silence. "That isn't all," she said. "Last night

Hedgerly wrote this in an envelope before he gave Tony the horses to

pick. It says: 'Graydon will place ten dollars on the parlay in Joan

Willson's name and she will win sixty-three thousand, four hundred

seven dollars and sixty cents.' That's what happened, Peter."

"Um," said Peter.

"Trapped," said Marie.

"Gypped," growled Graydon.

"Bought," muttered Joan.

"I've told you again and again," said Hedgerly, "that no matter what

you do, you're doing just what history says--note the past tense--you

did! Even to producing a means of controlling neutrons, Peter. Now,

of course, you'll continue here, though this being the Theoretical

Physics Laboratory, you'll let this information disperse. The other

boys will pick it up and develop it while you continue to delve into

the relationship between magnetism and gravitics."

"And suppose I do not?"

"Oh, but you did."

"Not," growled Peter, his voice reaching a crescendo, "if I go nuts

first!"

Hedgerly spoke quietly to Marie. "You take care of him," he told her.

"There's nothing like it for cementing a fond relationship."

"Must I give up my life work?" exploded Peter angrily. "I'd rather work

on this gadgetry than eat! I've got me a lead that may end up by making

me as famous as Faraday or Einstein and if I follow it, I'll end up so

far behind the eight-ball that it'll look like a split pea."

Marie leaned back against the frame of the generator and smiled at him.

"This," she said in a voice dripping with phony tones, "is a shock to

me. Men usually brave fire and flood to touch the hem of my skirt. But

you'd rather give up being historically famous than--"

"Shaddup," snapped Peter. "And let me think!"

"Think?" muttered the girl helplessly. "I think we're licked."

Peter nodded. "Licked, drawn, and quartered. Y'know, Marie, I've tried

to resent you. I can't. Probably because I know you're in the same boat

as I am."

She nodded. "Whatever he does, whatever we do, he's got the answer and

he gives it one hundred per cent. No man in his right mind would ever

have stood up to Tony and told him to reduce his feeling toward me to

platonic friendship. Not unless he knew beforehand that Tony wouldn't

half-kill him. But I am beginning to understand. Even though what he

says is odious, I must admit that it does come to pass."

Peter looked unhappy. "This is a fine mess," he said. "It wouldn't

be half bad if Hedgerly and his confounded history were capable of

changing our feelings as well as our lives. But he blithely ignores

the fact that you and I are expected to marry--with both of us feeling

that we'd rather marry someone else, and know who. Then to top that,

not only is it going to be emotionally difficult in the first place,

but think of the emotional wrench we'll get when Tony and Joan--"

Peter stopped, swallowed hard, and then added: "I'm not speaking too

selfishly, Marie. I've not mentioned how they will feel. The whole

thing is a trumped-up mess."

Marie put her hand on Peter's arm. "I don't exactly love you," she

said with a shy smile, "but you are a very nice guy, Peter."

"Huh?"

"You're sensitive and gentle and thoughtful of other people's feelings.

I have a hunch that you could also be very hard and rough if the need

arose."

Peter smiled a little crooked smile and said: "All of which gets us

nowhere, does it?"

"No," admitted Marie. "But if I'm going to have myself hurled into an

'arranged' marriage, I'd rather it be with someone I respect."

* * * * *

Hedgerly leaned over the back of the divan in Peter's living room and

looked from Joan to Tony, one on each side of him. "What's so wrong

with it?" he asked. "People have been happy in prearranged marriages

for centuries. Sometimes the participants never meet until they are

introduced by the minister."

Tony looked up sourly. "Hedgerly," he said, "you may have traveled back

into time. But mister, you didn't come THAT far back!"

Hedgerly shook his head impatiently. "I fail to see why people

rant against their fate. It is written that Peter and Marie get

married. It is also written that they celebrate their golden wedding

anniversary--shucks, I was there as a kid and I know. They were very

happy together."

"So?" demanded Joan.

"So you might as well give up," said Hedgerly. "As I told Peter when I

arrived a few days ago, I've come to help him. The chances are that

things would have gone off all right if I'd not come. Peter and Marie

would have met, regardless. As for you and Tony, Joan, I might tell you

that you were very happy together, too. So you might as well give up

completely and accept the dictates of fate."

"I hate to go through the motions of a play for nothing," grunted Tony.

Hedgerly winked at Joan. "You'll find some of the motions are fun," he

said.

The door opened and the other couple came in. Hedgerly looked at them

and smiled genially. "Have fun?" he asked. His tone was that of an

indulgent father.

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