Jeff raised his eyes to the doctor's face. His throat felt like sandpaper. He tried to swallow and couldn't. "Sorry," he grated. "I've changed my mind. I'm not talking business."

Dr. Schiml smiled, his head slowly moving back and forth. "I hear you're quite handy at the dice, Jeff."

Jeff jumped out of the chair, fists clenched, eyes blazing at the girl. "You bitch," he snarled. "You two-bit tramp stoolie. You'd sell your grandmother short for a bag of salt, wouldn't you? Come to me with your sob stories, beg me to move out of here with you." His voice was biting. "How much did they pay you to sell out? A hundred thousand, maybe? Or was this just a little routine affair? Maybe a thousand or two?"

The girl's face darkened, her eyes bewildered as she stared at him. "No, that's not true. I didn't—"

"Well, it won't do them any good, no matter how much they paid you. Because I'm not signing a release, now or ever."

A guard grabbed Jeff's arm, forcing him back into the chair.

Dr. Schiml still smiled, clasping his knee with his hands. "I guess you didn't quite understand me," he said pleasantly. "You mustn't blame Blackie. She didn't sell you short. She just couldn't help answering a few perfectly innocent questions." His eyes returned to Jeff, coldly. "We're not asking you to sign a release, Jeff. We're telling you."

Jeff stared at him in amazement. "Don't be silly," he blurted. "I'm not signing a release to you people. Do you think I'm out of my mind? Take it away, burn it and get yourself another guinea pig."

Dr. Schiml smiled quietly and shook his head. "We don't want another guinea pig, Jeff. That's just it. We want you."

A little line of sweat broke out on Jeff's forehead. "Look," he said hoarsely. "I'm not signing anything, do you understand? I've changed my mind. I don't care for the work here. I don't like the company."

Schiml's smile faded. He shrugged and tucked the white paper back into his white coat. "Just as you wish," he said. "The release is just a formality. Bring him along, boys."

"Wait!" Jeff was on his feet again, facing the guards, his eyes wide with fright. His eyes caught Schiml's. "Look, you've got things wrong. I'm a fake in here, a fraud. Can't you understand that? I didn't come in here to volunteer. I never intended to volunteer, never planned to go even as far as I did. I came here—"

Schiml made an impatient face and held up a hand. "Oh, yes, yes, I know all that. You came into this place because you'd followed a man in here and you wanted to kill him. You'd been hunting him for years, because you thought he murdered your father in cold blood and nothing would do but you kill him. Right?" Schiml blinked at Jeff, his voice heavy with boredom. "So you came in here and went through testing, hunting down your man, trying to find him. But you didn't find him. Now things have suddenly become too hot for your liking, so you figure that it's time to pull out. Right? Or are some of the details wrong?"

Jeff's jaw sagged, his face going pasty. "That slut girl—"

Schiml grimaced. "No, not Blackie. Blackie is discreet, in her own quiet way. She hasn't had anything to do with it. We've known about you all along, Jeff. And through a much more reliable source than Blackie." He glanced over his shoulder at one of the guards. "Bring him in," he said abruptly.

The door to the adjoining room opened and a man walked into the room. He was a tall, lean man; a gaunt-faced man with sallow cheeks and large, sad eyes; a weary-looking man whose hair was graying about the temples—a man whose whole body looked desperately tired.

And Schiml looked at the man and then he looked at the ceiling. "Hello, Paul," he said softly. "There's someone here who's been looking for you—"

A scream broke from Jeff's lips as he stared across the room. A raw animal scream ripped from his mouth like a knife. His lips twisted and he wrenched at the guards who were holding his arms, his face going purple, his eyes bulging.

With a roar he lunged at Conroe, bellowing, a torrent of hatred and abuse pouring from his lips. Again and again he screamed, his eyes blazing with an unholy fire of hatred. Conroe jerked back with a cry, and then Schiml was on his feet as Jeff lunged again, his muscles tightening like bands of steel under the flimsy shirt.

The guards fought to restrain him, and then the doctor was holding him too, crying: "Get out, Paul, quick!"

But Paul Conroe stood stock still, writhing from his hands to his head, his eyes filling with horrible pain. Suddenly the coffee cup jerked from the table, spun in the air and hurled straight for Conroe's head. It missed, smashing against the wall.

Jeff screamed again and the walls and ceiling began powdering off, plaster peeling down in great chunks, smashing off the walls onto the floor. A huge chunk fell from the ceiling, and then the curtains suddenly started to blaze, as if ignited by some magic fire. Finally, Conroe's clothing began smoking and smoldering.

Blackie screamed, staring at Jeff in open horror. Schiml's voice roared through the bedlam: "Get him! Sedate him, for God's sake, before he tears the place down on our ears!" Again Jeff roared his virulent hatred, and this time Conroe was the one who shouted:

"Stop him! He's tearing me apart inside. My God, stop him!"

Someone stepped between Jeff and Conroe. There was a flicker of glass and silver as a plunger was pressed home. Then suddenly Jeff's muscles gave out. His legs walked out from under him, and he felt himself sliding to the floor. But still he screamed, the face of the man who had tormented him all his life growing closer and closer, more and more vicious. Then suddenly everything around him went black. His last conscious impression was that of Blackie. She had her face in her hands and she was sobbing like a child in the corner.

He lay on the long table, wrapped in cool green surgical linens, motionless, barely breathing. His eyes were wide open, but sightless. They seemed to be staring straight up at the pale, glowing skylight in the ceiling. It was as if they were staring beyond, eons beyond, into some strange world that no human foot had ever trod.

His breath came slowly, a harsh sound in the still room. Sometimes it slowed almost to a stop, sometimes it accelerated. Dr. Schiml paused motionless by his side, waiting, watching breathlessly until the ragged wheeze slowed once again to normal.

Jeff lay like a corpse, but he was not dead. Near his head the panel of tiny lights flickered on and off, brighter and dimmer, carrying their simple on-or-off messages from the myriad microscopic endings on the tiny electrode that probed through the soft brain tissue.

No human being could ever analyze the waxing and waning of patterns on that panel, not even in five lifetimes. But a camera could film the changes, instant upon instant, flickering and flashing and glowing dully on and off, in a thousand thousand different figures and movements. And the computor could take these patterns from the film and analyze them and compare them. It would integrate them into the constantly changing picture that appeared on the small screen by the bedside.

It was a crude instrument, indeed, for the study of so exquisitely delicate and variable an instrument as a human brain, and no one knew this more painfully than Roger Schiml. But even such a crude instrument could probe into that strange half-world that they had sought so long to enter.

Near the bedside Paul Conroe sat motionless, his face drawn, his gaunt cheeks sunken. His eyes were wide and fearful as he watched the picture panel and his fingers trembled as he lit his pipe. He kept watching.

"It could be so dangerous," he murmured finally, turning to look at Schiml. "So terribly dangerous."

Schiml nodded gravely, adjusting the microvernier that controlled the probing instrument. "Of course it could be dangerous, but not too much so. Twenty years ago he'd have been dead already, but we haven't been wasting time all these years we've been waiting for him. Particularly in this cell-probing technique, we've ironed out the bugs. He'll survive, all right, unless we run into something mighty—"

Conroe shook his head. "Oh, no, no. I don't mean dangerous for him. I mean dangerous for us. Even he doesn't realize his power. How can we predict what sort of power it might be?" He looked up at Schiml, his eyes wide. "That room—it would have been gone in another five minutes, simply torn apart into molecular dust. He did it—and yet, I'd swear he didn't know what he was doing. I doubt if he even realized what was happening. And the fire—that was real fire, Roger. I know, I felt it burn me."

Schiml nodded eagerly. "Of course it was real fire! Set molecules to spinning at terrifically accelerated rates and you have fire. But those are the things we have to learn, Paul."

Conroe shook his head, fearfully. "We could both see the fire, but there was something else. You couldn't feel the hatred that was in that room. I could." He looked up, his eyes haunted. "God, Roger, how could a man hate that way? It was thick; it ran out into the room like syrup. Oh, I've felt hatred before in the minds I've contacted, many times. I've felt vile hatred before, but this was alive, crawling hate—" He sighed, his hands trembling. "It's in his mind, Roger. We don't know what else he might do, even under anesthetic, if we hit the right places. But it's in his mind. That we know. But why?"

Schiml nodded again. "That's the key question, of course. Why does he hate you so much? When we know that"—the doctor spread his hands—"we'll have the answer to twenty years' work, perhaps. And dangerous as it is, we've got to find out, while we have a chance, Paul. You know that. We can't stop now, not with what we know. We know that Jeff's insanity is far less active right now than his father's was. But unless we can locate the areas, find the location of both factors, the psychosis and the extra-sensory powers, we're lost. We'd have no recourse but to turn our findings over to the authorities. And you know what that would mean."

Conroe nodded wearily. "Yes, I know. Mass slaughter, sterilization, fear, panic—all the wrong answers. And even the panic alone would be fatal in our psychotic world."

Dr. Schiml shrugged and went back to the bedside. "We'll know soon, one way or the other," he said softly. "We're coming through right now."