garments normally arrived by his bedside in the carrier which took away the old ones to be converted back to raw material for the garment machines.

On the second day he could enter no place of public recreation. An attempt to pass the door of any sport-field, theatre, or concert stadium caused the Disciplinary Circuit to act. His body began to tingle. He could turn back then. If he persisted, the tingling became more severe. If he was obstinate, it became agony, which continued until he turned back.

On the third day he found it impossible to enter any place of study or labor. The fourth day blocked him from any place where food or drink was served. On the fifth day his own quarters were barred to him.

After seven days the city and the planet would be barred. Anywhere he went, his body would tingle, gently in the morning, more and more strongly as the day wore on, until the torment became unbearable. Then he would go to the matter-transmitter, name his chosen place of exile, and walk off the planet which was Alphin III.

But it happened that Kim was a matter-transmitter technician. It happened that he knew that the Disciplinary Circuit was tied in to the matter-transmitter, and blocked men were not sent to destinations of their own choosing.

Blocked men automatically went to Ades. And they did not come back. Ever.

Behind the sealed-off parts of the space-ship, Kim searched hungrily and worked desperately, not for food, of course. He had determined to attempt the impossible. He had accomplished only the first step toward it when he felt an infinitesimal tingling all over his body. He stood rigid for a second, and then smiled grimly. He closed the casing of the catalyzer he had examined and worked on.

"Just in time," he said. "The merciless brutes!"

He moved from the catalyzer. A moment later he heard footsteps. Someone came up the flush ladder and into the space-ship. Kim Rendell turned his head. Then he bent over the fuel-register, which amazingly showed the tanks to be almost one-twelfth full of fuel, and stood motionless.

The footsteps moved here and there. Presently they came cautiously to the engine-room. Kim did not stir. A man made an indescribable sound of satisfaction. Kim, not moving even his eyes, saw that it was the lector who had spoken to him outside the ship. He did not address Kim now. With a quite 

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