because the arrangement was so rigidly disciplined. There were two things that Lanny might do. He could fit the energy units of his own body past the space intervals of the metal—in effect, passing through the metal barrier. But that would be slow and exacting work. It would require a considerable concentration to move the specialized cells of his body across the metal maze. The second method was easier. As he extended his cerebral integration into the metal, he could rearrange the energy unit pattern. The bars should fragment and fall apart. Lanny was amazed how rapidly the change took place. Before he could adjust the pattern of more than half a dozen energy units, a chain reaction began. Lanny found he had to absorb an enormous flow of superfluous energy to prevent an explosion. As soon as he crossed into the corridor, watching photo-electric cells sent an alarm pulsing into the guard room on the tier above. The metal-walled corridor throbbed with the deafening cry of a siren. Lanny darted toward his father's cell. "Hold the metal and make it over with your mind—just as we integrate with our clubs. It's the same principal, father." Pendillo shrugged. "I can't, Lanny. I don't know how." Lanny had no time to weigh the significance of what his father said for the scream of the siren stopped and a guard appeared at the head of the corridor. The guard wrapped himself hastily in the shell of a force-field capsule. He fired his energy gun. The knife of flame arched through the corridor and struck Lanny's face. His body reacted instinctively, absorbing and storing part of the charge and re-constructing the rest so that it became a harmless combination of inert gasses. But as the blinding flame splashed bright in Lanny's eyes—the way it had once before, when he murdered old Barlow—Lanny's mind faced the traumatic shock of remembering. Lanny had murdered Barlow—he knew that, now—murdered him with a blaze of energy which he had stored when he brushed against the force-field capsule surrounding Tak Laleen. It was not the fact of murder that had clamped the strait-jacket of forgetfulness on Lanny's mind and allowed him to think Tak Laleen had killed Barlow. He had known, for one split-second, the full maturity of the education Pendillo had given his sons. Known it too soon, with too little preparation. Now he understood why he had felt ashamed, why he'd retreated deliberately from the truth: because he had killed Barlow to resolve an old argument, not to be rid of a traitor. The