THE MAGIC LABYRINTH

Voss' wingtip missed Guynemer's tail elevator by a half-inch.

The German drove down and then up in a loop, a maneuver not recommended when the enemy was on your tail. At its top, he rolled over and then dived.

Guynemer had thought, when Checkerboard turned into him, that it was all over. Quickly recovering, no time for thought about narrow escapes here, he started to climb, looking over his shoulder. For a moment he could not see Checker—board. Then both it and Barker's machine flashed by him. His friend was behind Checkerboard, having somehow gotten on his tail. Checkerboard went into a barrel roll, lost speed in the maneuver, and then did a flat half-spin. Voss was quick as a cat at the controls. Suddenly, he was pointed in the opposite direction. Barker's plane shot by him, their wingtips almost touching.

Guynemer had no time for further looking except for the plane with the red ball. Now the fellow was behind him but below, climbing as fast as he but still unable to decrease the distance between them. His foe was about seven hundred feet, Guynemer estimated. Close enough to reach him with his fire but too distant for accurate shooting in the air.

Nevertheless, Red Ball did give him a burst. Holes walked across Guynemer's right wing as he raised it to turn. Red Ball also turned, jockeying his machine so that he could zero in on the man in the cockpit. Guynemer pushed in on the throttle until it was flat against the panel. If only his motor had more power than Red Ball's, he could pull away slowly even in this steep climb. But there was no use wishing. They were evenly matched in this respect.

He pulled the stick back with a smooth savagery. He decreased the angle of his climb, thus allowing Red Ball to narrow the gap between them. But Guynemer could not curve up and over onto his back without more power. To try that without flattening out his inclination to the horizon would send his ship into a stall. For about thirty seconds, he had to take a chance that his enemy's fire would miss vital parts of his target.

Okabe closed up, wondering why Vieux Charles had slowed down. By now he assumed that its pilot was Guynemer. Like all airmen, he knew Guynemer's history well. For some moments after seeing the name, he had felt strange. What was he doing up here trying to kill the famous Frenchie, to shoot down Old Charlie!

Okabe looked through the sight. When he came within fifty yards, he would shoot. Now, now he was in range. He depressed the button on top of the joystick; his craft shook as the machine gun spat. He wasn't close enough to see if he had hit, but he doubted it. And now the white ship emblazoned with the red stork was pulling its nose up. Now, it was standing on its tail, and now, it had flipped over and was shooting at him.

But Okabe had kicked rudder and pushed the stick. At this altitude, the plane did not respond as swiftly as in straight flight. But it performed the half-roll and then he was diving away. He looked back and saw that Old Charlie was coming out of the dive in the opposite direction.

He turned steeply and headed toward it, hoping to catch it before it could get above him.

Voss, finding the plane marked with the dog's head behind him, had little time to determine which maneuver might shake it off his tail. He doubted that any conventional aerobatics would do it. This man would just perform the same or would hang back a little and pounce on him when he came out of it.

Savagely, he yanked the throttle half-back.

Barker was surprised to come so close so suddenly. But he did not stop to think. Checkerboard was in his sight; the range was fifty yards and becoming less. Then the helmet of the pilot was inside the ring of his sight. He pressed on the trigger button.

Checkerboard, as if reading his mind, suddenly increased power and at the same time half-rolled. Barker's bullets sped by where the head had been, scorching the bottom of the fuselage, knocking off the tail skid.

Immediately, the Canadian half-rolled. If he had to shoot while on his side, he would do so.

Checkerboard righted itself but continued into a half-roll to the right. Doghead followed it. Checkerboard regained horizontal attitude, and Doghead pressed on the trigger button again.

But Checkerboard slid on into a turning dive. He must be desperate, Barker thought. I can turn and dive as fast as he. He also thought that Checkerboard must be Voss. He had to be.

But Checkerboard pointed his nose up quickly, barrel-rolled, and fell down again. Barker refused to emulate the maneuver. He pushed on the stick, his thumb ready to press, sticking to Checkerboard as closely as a duckling to its mother.

Guynemer, coming out of the dive, was in Checkerboard's line of fire. And Voss, estimating in a flash the vectors of his plane and Old Charlie's, the wind and the range, let loose a burst. There were only six bullets fired, and Guynemer was gone by. But one struck the Frenchman in the thigh, penetrating it at a downward angle.

Barker did not know that Voss was shooting until he saw Georges throw up an arm and snap his head backward. Then he closed his thumb on the button, but Voss had zoomed up and into a flat half-spin, suicidally throwing his wings around so that Barker had to bank away to keep from collision.

But he was around, turning as swiftly as a leopard fearing a hamstringing by a wild dog. Voss had momentarily escaped him, though at a cost. Forced to dive again to regain speed before Barker could get to him, he was below him again.

Barker slid down toward him, looking around at the same time for Red Ball.

He saw it. It was headed for him from above, coming to aid its fellow, now that Guynemer was momentarily, perhaps permanently, hors de combat.

It was vital to abandon Voss for the moment. Barker turned his plane up, its nose pointed on the same plane and in the same direction as Okabe's. Collision course.

But having to climb put him at a disadvantage. The enemy did not have to stay at the same level, nor did he. He banked slightly, turning to the left. Barker banked to the left. Okabe rolled to the right and then flattened out the dive. Evidently, he was trying to circle around to get on his tail. The Canadian looked down on both sides. Guynemer was climbing away now. He wasn't so badly wounded he was out of the fight. And the German was heading toward the Frenchman, who was almost at the same level. He was underneath him, in a perfect position for Barker to attack him. Unfortunately, Barker was in the same situation as Voss with respect to Okabe.

Barker turned his plane while still climbing. Within about thirty seconds, Okabe would come screaming down and around and behind him.

To hell with Okabe. He was going to attack Voss anyway.

Barker's plane dived in a long curve.

The wings shook with the speed of the descent. He glanced at his speedometer. Two hundred and sixty miles per hour. At ten miles per hour more, the wings would be under an intolerable strain.

He glanced back. Okabe was following him now but not that closely. Probably his wing's had about the same tolerance as his own plane. Barker flattened out a little, decreasing the rate of descent. This would allow Okabe to narrow the gap between him and Barker. But Barker wanted to come up on Voss at a speed which would give him time for a long burst.

Now Voss, seeing Barker diving, the only target himself, turned his machine toward the swooping nemesis. For a few seconds, they were on the same line, and the muzzles of Voss' guns spat flame. He was taking a long chance, the odds high against success, since the range was four hundred yards. But there was little else he could do.

If the plane had been miraculously hit, Barker himself was untouched. Now he banked away, altering slightly the curve. He throttled back, looking backward at the same time. Okabe was getting closer, but he was still too far away to use his weapon.