'Let me out of here! Let me out of here!' MacKinnon beat on the bars and screamed. No answer came. He renewed the racket, his voice an hysterical falsetto. Lefty arrived to investigate, grumbling.

'What the hell's eating on you?' he demanded, peering through the bars.

MacKinnon changed to tearful petition. 'Oh, Lefty, please let me out of here. Please! I can't stand the dark. It's dark in here-please don't leave me alone.' He flung himself, sobbing, on the bars.

The guard cursed to himself. 'Another slugnutty. Listen, you-shut up, and go to sleep, or I'll come in there, and give you something to yelp for!' He started to leave.

MacKinnon changed instantly to the vindictive, unpredictable anger of the irresponsible. 'You big ugly baboon! You rat-faced idiot! Where'd you get that nose?'

Lefty turned back, fury in his face. He started to speak. MacKinnon cut him short. 'Yah! Yah! Yah!' he gloated, like a nasty little boy, 'Lefty's mother was scared by a warthog-The guard swung at the spot where MacKinnon's face was pressed between the bars of the door. MacKinnon ducked and grabbed simultaneously. Off balance at meeting no resistance, the guard rocked forward, thrusting his forearm between the bars. MacKinnon's fingers slid along his arm, and got a firm purchase on Lefty's wrist.

He threw himself backwards, dragging the guard with him, until Lefty was jammed up against the outside of the barred door, with one arm inside, to the wrist of which MacKinnon clung as if welded.

The yell which formed in Lefty's throat miscarried; Magee had already acted. Out of the darkness, silent as death, his slim hands had snaked between the bars and imbedded themselves in the guard's fleshy neck. Lefty heaved, and almost broke free, but MacKinnon threw his weight to the right and twisted the arm he gripped in an agonizing, bone-breaking leverage.

It seemed to MacKinnon that they remained thus, like some grotesque game of statues, for an endless period. His pulse pounded in his ears until he feared that it must be heard by others, and bring rescue to Lefty. Magee spoke at last:

'That's enough,' he whispered. 'Go through his pockets.'

He made an awkward job if it, for his hands were numb and trembling from the strain, and it was anything but convenient to work between the bars. But the keys were there, in the last pocket he tried. He passed them to Magee, who let the guard slip to the floor, and accepted them.

Magee made a quick job of it. The door swung open with a distressing creak. Dave stepped over Lefty's body, but Magee kneeled down, unhooked a truncheon from the guard's belt, and cracked him behind the ear with it. MacKinnon paused.

'Did you kill him?' he asked.

'Cripes, no,' Magee answered softly, 'Lefty is a friend of mine. Let's go.'

They hurried down the dimly lighted passageway between cells toward the door leading to the administrative offices-their only outlet. Lefty had carelessly left it ajar, and light shone through the crack, but as they silently approached it, they heard ponderous footsteps from the far side. Dave looked hurriedly for cover, but the best he could manage was to slink back into the corner formed by the cell block and the wall. He glanced around for Magee, but he had disappeared.

The door swung open; a man stepped through, paused, and looked around. MacKinnon saw that he was carrying a blacklight, and wearing its complement-rectifying spectacles. He realized then that the darkness gave him no cover. The blacklight swung his way; he tensed to spring-He heard a dull 'clunk!' The guard sighed, swayed gently, then collapsed into a loose pile. Magee stood over him, poised on the balls of his feet, and surveyed his work, while caressing the business end of the truncheon with the cupped fingers of his left hand.

'That will do,' he decided. 'Shall we go, Dave?'

He eased through the door without waiting for an answer; MacKinnon was close behind him. The lighted corridor led away to the right and ended in a large double door to the street. On the left wall, near the street door, a smaller office door stood open.

Magee drew MacKinnon to him. 'It's a cinch,' he whispered. 'There'll be nobody in there now but the desk sergeant. We get past him, then out that door, and into the ozone-' He motioned Dave to keep behind him, and crept silently up to the office door. After drawing a small mirror from a pocket in his belt, he lay down on the floor, placed his head near the doorframe, and cautiously extended the tiny mirror an inch or two past the edge.

Apparently he was satisfied with the reconnaissance the improvised periscope afforded, for he drew himself back onto his knees and turned his head so that MacKinnon could see the words shaped by his silent lips. 'It's all right,' he breathed, 'there is only-Two hundred pounds of uniformed nemesis landed on his shoulders. A clanging alarm sounded through the corridor. Magee went down fighting, but he was outclassed and caught off guard. He jerked his head free and shouted, 'Run for it, kid!'

MacKinnon could hear running feet somewhere, but could see nothing but the struggling figures before him. He shook his head and shoulders like a dazed animal, then kicked the larger of the two contestants in the face. The man screamed and let go his hold. MacKinnon grasped his small companion by the scruff of the neck and hauled him roughly to his feet.

Magee's eyes were still merry. 'Well played, my lad,' he commended in clipped syllables, as they burst out the street door, '- if hardly cricket! Where did you learn La Savate?'

MacKinnon had no time to answer, being fully occupied in keeping up with Magee's weaving, deceptively rapid progress. They ducked across the street, down an alley, and between two buildings.

The succeeding minutes, or hours, were confusion to MacKinnon. He remembered afterwards crawling along a roof top and letting himself down to crouch in the blackness of an interior court, but he could not remember how they had gotten on the roof. He also recalled spending an interminable period alone, compressed inside a most unsavory refuse bin, and his terror when footsteps approached the bin and a light flashed through a crack.

A crash and the sound of footsteps in flight immediately thereafter led him to guess that Fader had drawn the pursuit away from him. But when Fader did return, and open the top of the bin, MacKinnon almost throttled him before identification was established.

When the active pursuit had been shaken off, Magee guided him across town, showing a sophisticated knowledge of back ways and shortcuts, and a genius for taking full advantage of cover. They reached the outskirts of the town in a dilapidated quarter, far from the civic center. Magee stopped. 'I guess this is the end of the line,' kid,' he told Dave. 'If you follow this street, you'll come to open country shortly. That's what you wanted, wasn't it?'

'I suppose so,' MacKinnon replied uneasily, and peered down the street. Then he turned back to speak again to Magee.

But Magee was gone. He had faded away into the shadows. There was neither sight nor sound of him.

MacKinnon started in the suggested direction with a heavy heart. There was no possible reason to expect Magee to stay with him; the service Dave had done him with a lucky kick had been repaid with interest-yet he had lost the only friendly companionship he had found in a strange place. He felt lonely and depressed.

He continued along, keeping to the shadows, and watching carefully for shapes that might be patrolmen. He had gone a few hundred yards, and was beginning to worry about how far it might be to open countryside, when he was startled into gooseflesh by a hiss from a dark doorway.

He did his best to repress the panic that beset him, and was telling himself that policemen never hiss, when a shadow detached itself from the blackness and touched him on the arm.