Hilton did not have to drive the peyondix-beam to the-planet Strett; it was already there.

And there was the monstrous First Lord Thinker Zoyar.

 Into that mind his multimind flashed, its every member as responsive to his will as his

own fingers-almost infinitely more so, in fact, because of the tremendous lengths of

time required to send messages along nerves.

 That horrid mind was scanned cell by cell. Then, after what seemed like a few hours,

when a shield began sluggishly to form, Hilton transferred his probe to the mind of the

Second Thinker, one Lord Ynos, and absorbed everything she knew. Then, the minds

of all the other Thinkers being screened, he studied the whole Strett planet, foot by foot,

and everything that was on it.

 Then, mission accomplished, Hilton snapped his attention back to his office and the

multi-mind fell apart. As he opened his eyes be heard Tuly scream: ". . . Luck!"

 "Oh-you still here, Tuly? How long have we been gone?" "Approximately one and

one-tenth seconds, sir." "WHAT!"

 Beverly Bell, in the haven of Franklin Poynter's arms, fainted quietly. Sandra shrieked

piercingly. The four men stared, goggle-eyed. Temple and Teddy, as though by com-

mon thought, burrowed their faces into brawny shoulders.

 Hilton recovered first. "So that's what peyondix is."

 "Yes, sir-I mean no, sir. No, I mean yes, but . . ." Tuly paused, licking her lips in that

peculiarly human-female gesture of uncertainty.

 "Well, what do you mean? It either is or isn't. Or is that necessarily so?"

 "Not exactly, sir. That is, it started as peyondix. But it became something else. Not

even the most powerful of the old Masters-nobody-ever did or ever could possibly

generate such a force as that. Or handle it so fast."

 "Well, with seven of the best minds of Terra and a . . ." "Chip-chop the chit-chat!"

Karns said, harshly. "What I want to know is whether I was having a nightmare. Can

there possibly be a race such as I thought I saw? So utterly savage-ruthless-merciless!

So devoid of every human trace and so hell-bent determined on the extermination of

every other race in the Galaxy? God damn it, it simply doesn't make sense!"

 Eyes went from eyes to eyes to eyes.

 All had seen the same indescribably horrible, abysmally atrocious, things. Qualities and

quantities and urges and drives that no words in any language could even begin to

portray.

 "It doesn't seem to, but there it is." Teddy Blake shook her head hopelessly.

 Big Bill Karns, hands still shaking, lit a cigarette before he spoke again. "Well, I've

never been a proponent of genocide. But it's my considered opinion that the Stretts are

one race the Galaxy can get along without."

 "A hell of a lot better without," Poynter said, and all agreed.

 "The point is, what can we do about it?" Kincaid asked. "The first thing, I would say, is

to see whether we can do this-whatever it is-without Tuly's help. Shall we try it? Al-

though I, for one, don't feel like doing it right away."

 "Not I, either." Beverly Bell held up her right hand, which was shaking uncontrollably. "I

feel as though I'd been bucking waves, wind and tide for forty-eight straight hours

without food, water or touch. Maybe in about a week I'll be ready for another try at it.

But today-not a chance!"

 "Okay. Scat, all of you," Hilton ordered. "Take the rest of the day off and rest up. Put

on your thought-screens and don't take them off for a second from now on. Those

Stretts are tough hombres."

 Sandra was the last to leave. "And you, boss?" she asked, pointedly.

 "I've got some thinking to do." "I'll stay and help you think?"

 "Not yet." He shook his head, frowned and then grinned. "You see, chick, I don't even

know yet what it is I'm going to have to think about."

 "A bit unclear, but I know what you mean-I think. Luck, chief."

 In their subterranean sanctum on distant Strett, two of the deepest thinkers of that

horribly unhuman race were in coldly intent conference via thought.

 "My mind has been plundered, Ynos," First Lord Thinker Zoyar radiated, harshly.

"Despite the extremely high reactivity of my shield some information-I do not know how

much was taken. The operator was one of the humans of that ship."

 "I, too, felt a plucking at my mind. But those humans could not peyondire, First Lord."

 "Be logical, fool! At that contact, in the matter of which you erred in not following up

continuously, they succeeded in concealing their real abilities from you."

 ""That could be the truth. Our ancestors erred, then, in recording that all those weak

and timid humans had been slain. These offenders are probably their descendants,

returning to reclaim their former world."

 "The probability must be evaluated and considered. Was it or was it not through human

aid that the Omans destroyed most of our task-force?"

 "Highly probable, but impossible of evaluation with the data now available."

 "Obtain more data at once. That point must be and shall be fully evaluated and fully

considered. This entire situation is intolerable. It must be abated."

 "True, First Lord. But every operator and operation is now tightly screened. Oh, if I

could only go out there myself . . . "Hold, fool! Your thought is completely disloyal and

unStrettly."

 "True, oh First Lord Thinker Zoyar. I will forthwith remove my unworthy self from this

plane of existence."

 "You will not! I hereby abolish that custom. Our numbers are too few by far. Too many

have failed to adapt. Also, as Second Thinker, your death at this time would be slightly

detrimental to certain matters now in work. I will myself, however, slay the unfit. To that

end repeat The Words under my peyondiring."

 "I am a Strett. I will devote my every iota of mental and of physical strength to

forwarding the Great Plan. I am, and will remain, a Strett."

 "You do believe in The Words."

 "Of course I believe in them! I know that in a few more hundreds of thousands of years

we will be rid of material bodies and will become invincible and invulnerable. Then

comes the Conquest of the Galaxy . . . then the Conquest of the Universe!"

 "No more, then, on your life, of this weak and cowardly repining! Now, what of your

constructive thinking?" "Programming must be such as to obviate time-lag. We must

evaluate the factors already mentioned and many others, such as the reactivation of the

spacecraft which was thought to have been destroyed so long ago. After having

considered all these evaluations, I will construct a Minor Plan to destroy these Omans,

whom we have permitted to exist on sufferance, and with them that shipload of

despicably interloping humans."

 "That is well." Zoyar's mind seethed with a malevolent ferocity starkly impossible for

any human mind to grasp. "And to that end?"

 "To that end we must intensify still more our program of procuring data. We must

revise our mechs in the light of our every technological advance during the many

thousands of cycles since the last such revision was made. Our every instrument of

power, of offense and of defense, must be brought up to the theoretical ultimate of

capability."

 "And as to the Great Brain?"

 "I have been able to think of nothing, First Lord, to add to the undertakings you have

already set forth."

 "It was not expected that you would. Now: is it your final thought that these interlopers

are in fact the descendants of those despised humans of so long ago?"

 "It is."

 "It is also mine. I return, then, to my work upon the Brain. You will take whatever

measures are necessary. Use every artifice of intellect and of ingenuity and our every

resource. But abate this intolerable nuisance, and soon."

 "It shall be done, First Lord."

 The Second Thinker issued orders. Frenzied, round-the-clock activity ensued.

Hundreds of mechs operated upon the brains of hundreds of others, who in turn

operated upon the operators.

 Then, all those brains charged with the technological advances of many thousands of

years, the combined hundreds went unrestingly to work. Thousands of work-mechs

were built and put to work at the construction of larger and more powerful spacecraft.

 As has been implied, those battle-skeletons of the Stretts were controlled by their own

built-in mechanical brains, which were programmed for only the simplest of battle

maneuvers. Anything at all out of the ordinary had to be handled by remote control, by

the specialist-mechs at their two-miles-long control board.

 This was now to be changed. Programming was to be made so complete that almost

any situation could be handled by the warship or the missile itself-instantly.

 The Stretts knew that they were the most powerful, the most highly advanced race in

the universe. Their science was the highest in the universe. Hence, with every operating

unit brought up to the full possibilities of that science, that would be more than enough.

Period.

 This work, while it required much time, was very much simpler than the task which the

First Thinker had laid out for himself on the giant computer-plus which the Stretts called

"The Great Brain." In stating his project, First Lord Zoyar had said:

"Assignment: To construct a machine that will have the following abilities: One, to

contain and retain all knowledge and information fed into it, however great the amount.

Two, to feed itself additional information by peyondiring all planets, wherever situate,

bearing intelligent life. Three, to call up instantly any and all items of information

pertaining to any problem we may give it. Four, to combine and recombine any number

of items required to form new concepts. Five, to formulate theories, test them and draw

conclusions helpful to us in any matter in work."

 It will have been noticed that these specifications vary in one important respect from

those of the Eniacs and Univacs of Earth. Since we of Earth can not peyondire, we do

not expect that ability from our computers. The Stretts could, and did.

 When Sandra came back into the office at five o'clock she found Hilton still sitting

there, in almost exactly the same position.

 "Come out of it, Jarve!" She snapped a finger. "That much of that is just simply too

damned much."

 "`You're so right, child." He got up, stretched and by main strength shrugged off his foul

mood. "But we're up against something that is really a something and I don't mean per-

chance."

 "How well I know it." She put an arm around him, gave him a quick, hard hug. "But after

all, you don't have to solve it this evening, you know."

 "No, thank God."

 "So why don't you and Temple have supper with me? Or better yet, why don't all eight

of us have supper together in that bachelors' paradise of yours and Bill's?"

 "That'd be fun." And it was.

 Nor did it take a week for Beverly Bell to recover from the Ordeal of Eight. On the

following evening, she herself suggested that the team should take another shot at that

utterly fantastic terra incognita of the multiple mind, jolting though it had been.

 "But are you sure you can take it again so soon?" Hilton asked.

 "Sure. I'm like that famous gangster's moll, you know, who bruised easy but healed

quick. And I want to know about it as much as anyone else does."

 They could do it this time without any help from Tuly. The linkage fairly snapped

together and shrank instantaneously to a point. Hilton thought of Terra and there it was;

full size, yet occupying only one infinitesimal section of a dimensionless point. The

multimind visited relatives of all eight, but could not make intelligible contact. If asleep, it

caused pleasant dreams; if awake, pleasant thoughts of the loved one so far away in

space; but that was all. It visited mediums, in trance and otherwise-many of whom, not

surprisingly now, were genuine-with whom it held lucid conversations. Even in linkage,

however, the multimind knew that none of the mediums would be believed, even if they

all told, simultaneously, exactly the same story. The multimind weakened suddenly and

Hilton snapped it back to Ardry.

 Beverly was almost in collapse. The other girls were white, shaken and trembling.

Hilton himself, strong and rugged as he was, felt as though he had done two weeks of

hard labor on a rock-pile. He glanced questioningly at Larry.

 "Point six three eight seconds, sir," the Oman said, holding up a millisecond timer.

 "How do you explain that?" Karns demanded.

 "I'm afraid it means that without Oman backing we're out of luck."

 Hilton had other ideas, but he did not voice any of them until the following day, when

he was rested and had Larry alone. "So carbon-based brains can't take it. One second

of that stuff would have killed all eight of us. Why? The Masters had the same kind of

brains we have."

 "I don't know, sir. It's something completely new. No Master, or group of Masters, ever

generated such a force as that. I can scarcely believe such power possible. even

though I have felt it twice. It may be that over the generations your individual powers,

never united or controlled, have developed so much strength that no human brain can

handle them in fusion."

 "And none of us ever knew anything about any of them. I've been doing a lot of

thinking. The Masters had qualities and abilities now unknown to any of us. How come?

You Omans-and the Stretts, too-think we're descendants of the Masters. Maybe we are.

You think they came originally from Arth-Earth or Terra-to Ardu. That'd account for our

legends of Mu, Atlantis and so on. Since Ardu was within peyondix range of Strett, the

Stretts attacked it. They killed all the Masters, they thought, and made the planet

uninhabitable for any kind of life, even their own. But one shipload of Masters escaped

and came here to Ardry-far beyond peyondix range. They stayed here for a long time.

Then, for some reason or other-which may be someplace in their records-they left here,

fully intending to come back. Do any of you Omans know why they left? Or where they

went?"

 "No, sir. We can read only the simplest of the Masters' records. They arranged our

brains that way, sir."

 "I know. They're the type. However, I suspect now that your thinking is reversed. Let's

turn it around. Say the Masters didn't come from Terra, but from some other planet. Say

that they left here because they were dying out. They were, weren't they?"

 "Yes, sir. Their numbers became fewer and fewer each century."

 "I was sure of it. They were committing race suicide by letting you Omans do

everything they themselves should have been doing. Finally they saw the truth. In a

desperate effort to save their race they pulled out, leaving you here. Probably they

intended to come back when they had bred enough guts back into themselves to set

you Omans down where you belong . . ."

 "But they were always the Masters, sir!"

 ""They were not! They were hopelessly enslaved. Think it over. Anyway, say they went

to Terra from here. That still accounts for the legends and so on. However, they were

too far gone to make a recovery, and yet they had enough fixity of purpose not to

manufacture any of you Omans there. So their descendants went a long way down the

scale before they began to work back up. Does that make sense to you?"

 "It explains many things, sir. It can very well be the truth." "Okay. However it was, we're

here, and facing a condition that isn't funny. While we were teamed up I learned a lot,

but not nearly enough. Am I right in thinking that I now don't need the other seven at

all-that my cells are fully charged and I can go it alone?"

 "Probably, sir, but . . ."

 "I'm coming to that. Every time I do it-up to maximum performance, of course it comes

easier and faster and hits harder. So next time, or maybe the fourth or fifth time, it'll kill

me. And the other seven, too, if they're along."

 "I'm not sure, sir, but I think so."

 "Nice. Very, very nice." Hilton got up, shoved both hands into his pockets, and prowled

about the room. "But can't the damned stuff be controlled? Choked-throttled down-

damped-muzzled, some way or other?"

 "We do not know of any way, sir. The Masters were always working toward more

power, not less."

 "That makes sense. The more power the better, as long as you can handle it. But I

can't handle this. And neither can the team. So how about organizing another team,

one that hasn't got quite so much whammo? Enough punch to do the job, but not

enough to backfire that way?"

 "It is highly improbable that such a team is possible, sir." If an Oman could be acutely

embarrassed, Larry was. "That is, sir . . . I should tell you, sir . . ."

 "You certainly should. You've been stalling all along, and now you're stalled. Spill it."

 "Yes, sir. The Tuly begged me not to mention it, but I must. When it organized your

team it had no idea of what it was really going to do . . ."

 "Let's talk the same language, shall we? Say 'he' and "she.' Not 'it.' "

"She thought she was setting up the peyondix, the same as all of us Omans have. But

after she formed in your mind the peyondix matrix, your mind went on of itself to form a

something else; a thing we can not understand. That was why she was so extremely . .

. I think 'frightened' might be your term."

 "I knew something was biting her. Why?"

 "Because it very nearly killed you. You perhaps have not considered the effect upon us

all if any Oman, however unintentionally, should kill a Master?"

 "No, I hadn't . . . I see. So she won't play with fire any more, and none of the rest of you

can?"

 "Yes, sir. Nothing could force her to. If she could be so coerced we would destroy her

brain before she could act. That brain, as you know, is imperfect, or she could not have

done what she did. It should have been destroyed long since."

 "Don't ever act on that assumption, Larry." Hilton thought for minutes. "Simple

peyondix, such as yours, is not enough to read the Masters' records. If I'd had three

brain cells working I'd've tried them then. I wonder if I could read them?"

 "You have all the old Masters' power and more. But you must not assemble them

again, sir. It would mean death." "But I've got to know . . . I've got to know! Anyway, a

thousandth of a second would be enough. I don't think that d hurt me very much."

 He concentrated-read a few feet of top-secret braided wire and came back to

consciousness in the sick-bay of the Perseus, with two doctors working on him;

Hastings, the top Navy medico, and Flandres, the surgeon.

 "What the hell happened to you?" Flandres demanded. "Were you trying to kill

yourself?"

 "And if so, how?" Hastings wanted to know.

 "No, I was trying not to," Hilton said, weakly, "and I guess I didn't much more than

succeed."

 "That was just about the closest shave I ever saw a man come through. Whatever it

was, don't do it again."

 "I won't," he promised, feelingly.

 When they let him out of the hospital, four days later, he called in Larry and Tuly.

 "The next time would be the last time. So there won't be any," he told them. "But just

how sure are you that some other of our boys or girls may not have just enough of

whatever it takes to do the job? Enough oomph, but not too much?"

 "Since we, too, are on strange ground the probability is vanishingly small. We have

been making inquiries, however, and scanning. You were selected from all the minds of

Terra as the one having the widest vision, the greatest scope, the most comprehensive

grasp. The ablest at synthesis and correlation and so on."

 "That's printing it in big letters, but that was more or less what they were after."

 "Hence the probability approaches unity that any more such ignorant meddling as this

obnoxious Tuly did will result almost certainly in failure and death. Therefore we can not

and will not meddle again."

 "You've got a point there . . . So what I am is some kind of a freak. Maybe a kind of

super-Master and maybe something altogether different. Maybe duplicable in a less

lethal fashion, and maybe not. Veree helpful-I don't think. But I don't want to kill

anybody, either . . . especially if it wouldn't do any good. But we've got to do

something!" Hilton scowled in thought for minutes. "But an Oman brain could take it. As

you told us, Tuly, `The brain of the Larry is very, very tough.' "

"In a way, sir. Except that the Masters were very careful to make it physically impossible

for any Oman to go very far along that line. It was only their oversight of my one

imperfect brain that enabled me, alone of us all, to do that wrong."

 "Stop thinking it was wrong, Tuly. I'm mighty glad you did. But I wasn't thinking of any

regular Oman brain . . :' Hilton's voice petered out.

 "I see, sir. Yes, we can, by using your brain as Guide, reproduce it in an Oman body.

You would then have the powers and most of the qualities of both . . ."

 "No, you don't see, because I've got my screen on. Which I will now take off"-he suited

action to word-"since the whole planet's screened and I have nothing to hide from you.

Teddy Blake and I both thought of that, but we'll consider it only as the ultimately last

resort. We don't want to live a million years. And we want our race to keep on

developing. But you folks can replace carbon-based molecules with silicon based ones

just as easily as, and a hell of a lot faster than, mineral water petrifies wood. What can

you do along the line of rebuilding me that way? And if you can do any such conversion,

what would happen? Would I live at all? And if so, how long? How would I live? What

would I live on? All that kind of stuff."

 "Shortly before they left, two of the Masters did some work on that very thing. Tuly and

I converted them, sir." "Fine--or is it? How did it work out?"

 "Perfectly, sir . . . except that they destroyed themselves. It was thought that they

wearied of existence."

 "I don't wonder. Well, if it comes to that, I can do the same. You can convert me, then."

 "Yes, sir. But before we do it we must do enough preliminary work to be sure that you

will not be harmed in any way. Also, there will be many more changes involved than

simple substitution."

 "Of course. I realize that. Just see what you can do, please, and let me know."

 "We will, sir, and thank you very much."