It might not have worked on most men but these goons were not very bright. The guard nodded, gulped and resumed his pacing. Dalgetty walked on up the path toward the house.

A man at the door lifted his rifle. "Halt, there! I'll have to call Mr. Bancroft first." The sentry went inside and thumbed an intercom switch.

Dalgetty, poised in a nervous tautness that could explode into physical strength, felt a clutch of fear. The whole thing was so fiendishly uncertain—anything could happen.

Bancroft's voice drifted out. "That you, Elena? Good work, girl! How'd you do it?" The warmth in his tone, under the excitement, made Dalgetty wonder briefly just what the relationship between those two had been.

"I'll tell you upstairs, Tom," she answered. "This is too big for anyone else to hear. But keep the patrols going. There are more like this creature around the island."

Dalgetty could imagine the primitive shudder in Thomas Bancroft, instinct from ages when the night was prowling terror about a tiny circle of fire. "All right. If you're sure he won't—"

"I've got him well covered."

"I'll send over half a dozen guards just the same. Hold it."

The men came running from barracks, where they must have been waiting for a call to arms, and closed in. It was a ring of tight faces and wary eyes and pointing guns. They feared him and the fear made them deadly. Elena's countenance was wholly blank.

"Let's go," she said.

A man walked some feet ahead of the prisoner, casting glances behind him all the time. There was one on either side, the rest were at the rear. Elena walked among them, her weapon never wavering from his back. They went down the long handsome corridor and stood on the purring escalator. Dalgetty's eyes roved with a yearning in them—how much longer, he wondered, would he be able to see anything at all?

The door to Bancroft's study was ajar and Tighe's voice drifted out. It was a quiet drawl, unshaken despite the blow it must have been to hear of Dalgetty's recapture. Apparently he was continuing a conversation begun earlier:

"... science goes back a long way, actually. Francis Bacon speculated about a genuine science of man. Poole did some work along those lines as well as inventing the symbolic logic which was to be such a major tool in solving the problem.

"In the last century a number of lines of attack were developed. There was already the psychology of Freud and his successors, of course, which gave the first real notion of human semantics. There were the biological, chemical and physical approaches to man as a mechanism. Comparative historians like Spengler, Pareto and Toynbee realized that history did not merely happen but had some kind of pattern.

"Cybernetics developed such concepts as homeostasis and feedback, concepts which were applicable to individual man and to society as a whole. Games theory, the principle of least effort and Haeml's generalized epistemology pointed toward basic laws and the analytical approach.

"The new symbologies in logic and mathematics suggested formulations—for the problem was no longer one of gathering data so much as of finding a rigorous symbolism to handle them and indicate new data. A great deal of the Institute's work has lain simply in collecting and synthesizing all these earlier findings."

Dalgetty felt a rush of admiration. Trapped and helpless among enemies made ruthless by ambition and fear, Michael Tighe could still play with them. He must have been stalling for hours, staving off drugs and torture by revealing first one thing and then another—but subtly, so that his captors probably didn't realize he was only telling them what they could find in any library.

The party entered a large room, furnished with wealth and taste, lined with bookshelves. Dalgetty noticed an intricate Chinese chess set on the desk. So Bancroft or Meade played chess—that was something they had in common, at least, on this night of murder.

Tighe looked up from the armchair. A couple of guards stood behind him, their arms folded, but he ignored them. "Hello, son," he murmured. There was pain in his eyes. "Are you all right?"

Dalgetty nodded mutely. There was no way to signal the Englishman, no way to let him hope.

Bancroft stepped over to the door and locked it. He gestured at the guards, who spread themselves around the walls, their guns aimed inward. He was shaking ever so faintly and his eyes glittered as with fever. "Sit down," he said. "There!"

Dalgetty took the indicated armchair. It was deep and soft. It would be hard to spring out of quickly. Elena took a seat opposite him, poised on its edge, the tommy-gun in her lap. It was suddenly very still in the room.

Bancroft went over to the desk and fumbled with a humidor. He didn't look up. "So you caught him," he said.

"Yes," replied Elena. "After he caught me first."

"How did you—turn the tables?" Bancroft took out a cigar and bit the end off savagely. "What happened?"

"I was in a cave, resting," she said tonelessly. "He rose out of the water and grabbed me. He'd been hiding underneath longer than anybody would have thought possible. He forced me out to a rock in the bay there—you know it? We hid till sundown, when he opened up on your men on that beach. He killed them all.

"I'd been tied but I'd managed to rub the strips loose. It was just a piece off his shirt he tied me with. While he was shooting I grabbed a stone and clipped him behind the ear. I dragged him to shore while he was still out, took one of the guns lying there and marched him here."

"Good work." Bancroft inhaled raggedly. "I'll see that you get a proper bonus for this, Elena. But what else? You said...."

"Yes." Her gaze was steady on him. "We talked, out there in the bay. He wanted to convince me I should help him. Tom—he isn't human."

"Eh?" Bancroft's heavy form jerked. With an effort he steadied himself. "What do you mean?"

"That muscular strength and speed, and telepathy. He can see in the dark and hold his breath longer than any man. No, he isn't human."

Bancroft looked at Dalgetty's motionless form. The prisoner's eyes clashed with his and it was he who looked away again. "A telepath, did you say?"

"Yes," she answered. "Do you want to prove it, Dalgetty?"

There was stillness in the room. After a moment Dalgetty spoke. "You were thinking, Bancroft, 'All right, damn you, can you read my mind? Go ahead and try it and you'll know what I'm thinking about you.' The rest was obscenities."

"A guess," said Bancroft. There was sweat on his cheeks. "Just a good guess. Try again."

Another pause, then, "'Ten, nine, seven, A, B, M, Z, Z ...' Shall I keep on?" Dalgetty asked quietly.

"No," muttered Bancroft. "No, that's enough. What are you?"

"He told me," put in Elena. "You're going to have trouble believing it. I'm not sure if I believe it myself. But he's from another star."

Bancroft opened his lips and shut them again. The massive head shook in denial.

"He is—from Tau Ceti," said Elena. "They're way beyond us. It's the thing people have been speculating about for the last hundred years."

"Longer, my girl," said Tighe. There was no emotion in his face or voice save a dry humor, but Dalgetty knew what a flame must suddenly be leaping up inside him. "Read Voltaire's Micromegas."

"I've read such fiction," said Bancroft harshly. "Who hasn't? All right, why are they here, what do they want?"

"You could say," spoke Dalgetty, "that we favor the Institute."

"But you've been raised from childhood...."

"Oh yes. My people have been on Earth a long time. Many of them are born here. Our first spaceship arrived in Nineteen Sixty-five." He leaned forward in the chair. "I expected Casimir to be reasonable and help me rescue Dr. Tighe. Since she hasn't done so I must appeal to your own common sense. We have crews on Earth. We know where all our people are at any given time. If necessary I can die to preserve the secret of our presence but in that case you will die too, Bancroft. The island will be bombed."

"I...." The chief looked out the window into the enormity of night. "You can't expect me to—to accept this as if...."

"I've some things to tell you which may change your mind," said Dalgetty. "They will certainly prove my story. Send your men out though. This is only for your ears."

"And have you jump me!" snapped Bancroft.

"Casimir can stay," said Dalgetty, "and anyone else you are absolutely certain can keep a secret and control his own greed."

Bancroft paced once around the room. His eyes flickered back and forth over the watching men. Frightened faces, bewildered faces, ambitious faces—it was a hard decision and Dalgetty knew grimly that his life rested on his and Elena's estimate of Thomas Bancroft's character.

"All right! Humphrey, Zimmermann, O'Brien, stay in here. If that bird moves shoot him. The rest of you wait just outside." They filed out. The door closed behind them. The three guards left posted themselves with smooth efficiency, one at the window and one at either adjoining wall. There was a long quiet.

Elena had to improvise the scheme and think it at Dalgetty. He nodded. Bancroft planted himself before the chair, legs spread wide as if braced for a blow, fists on hips.

"All right," he said. "What do you want to tell me?"

"You've caught me," said Dalgetty, "so I'm prepared to bargain for my life and Dr. Tighe's freedom. Let me show you—" He made a move as if to rise.

"Stay where you are!" snapped Bancroft, and three guns swiveled around to point at the prisoner. Elena backed away until she stood beside the one near the desk.

"As you will." Dalgetty leaned back again, casually shoving his chair a couple of feet. He was now facing the window and, as far as he could tell, sitting exactly on a line between the man there and the man at the farther wall. "The Union of Tau Ceti is interested in seeing that the right kind of civilizations develop on other planets. You could be of value to us, Thomas Bancroft, if you can be persuaded to our side, and the rewards are considerable." His glance went for a moment to the girl and she nodded imperceptibly. "For example...."

The power rushed up in him. Elena clubbed her gun butt and struck the man next to her behind the ear. In the fractional second before the others could understand and react Dalgetty was moving.

The impetus which launched him from the chair sent that heavy padded piece of furniture sliding across the floor to hit the man behind him with a muffled thud. His left fist took Bancroft on the jaw as he went by. The guard at the window had no time to swing his gun back from Elena and squeeze trigger before Dalgetty's hand was on his throat. His neck snapped.

Elena stood over her victim even as he toppled and aimed at the man across the room. The armchair had knocked his rifle aside. "Drop that or I shoot," she said.

Dalgetty snatched up a gun for himself, leveling it at the door. He more than half expected those outside to come rushing in, expected hell would explode. But the thick oak panels must have choked off sound.

Slowly, the man behind the chair let his rifle fall to the floor. His mouth was stretched wide with supernatural fear.

"My God!" Dr. Tighe's long form was erect, shaking, his calm broken into horror. "Simon, the risk...."

"We didn't have anything to lose, did we?" Dalgetty's voice was thick but the abnormal energy was receding from him. He felt a surge of weariness and knew that soon the payment must be made for the way he had abused his body. He looked down at the corpse before him. "I didn't mean to do that," he whispered.

Tighe collected himself with an effort of disciplined will and stepped over to Bancroft. "He's alive, at least," he said. "Oh my God, Simon! You could have been killed so easily."

"I may yet. We aren't out of the woods by any means. Find something to tie these two others up with, will you, Dad?"

The Englishman nodded. Elena's slugged guard was stirring and groaning. Tighe bound and gagged him with strips torn from his tunic. Under the submachine-gun the other submitted meekly enough. Dalgetty rolled them behind a sofa with the one he had slain.

Bancroft was wakening too. Dalgetty located a flask of bourbon and gave it to him. Clearing eyes looked up with the same terror. "Now what?" mumbled Bancroft. "You can't get away—"

"We can damn well try. If it had come to fighting with the rest of your gang we'd have used you as a hostage but now there's a neater way. On your feet! Here, straighten your tunic, comb your hair. Okay, you'll do just as you're told, because if anything goes wrong we'll have nothing at all to lose by shooting you." Dalgetty rapped out his orders.

Bancroft looked at Elena and there was more than physical hurt in his eyes. "Why did you do it?"

"FBI," she said.

He shook his head, still stunned, and shuffled over to the desk visiphone and called the hangar. "I've got to get to the mainland in a hurry. Have the speedster ready in ten minutes. No, just the regular pilot, nobody else. I'll have Dalgetty with me but it's okay. He's on our side now."

They went out the door. Elena cradled her tommy-gun under one arm. "You can go back to the barracks, boys," said Bancroft wearily to the men outside. "It's all been settled."

A quarter hour later Bancroft's private jet was in the air. Five minutes after that he and the pilot were bound and locked in a rear compartment. Michael Tighe took the controls. "This boat has legs," he said. "Nothing can catch us between here and California."

"All right." Dalgetty's tones were flat with exhaustion. "I'm going back to rest, Dad." Briefly his hand rested on the older man's shoulder. "It's good to have you back," he said.

"Thank you, son," said Michael Tighe. "I can't tell you how wonderful it is to be free again."