A moment later he lifted a haggard face.

"I can't get through," he said. "Craven's got our beams stopped and now he has our television blocked out."

Greg nodded. "We might have expected that. When he could scramble our televisors back in the Jovian worlds, he certainly ought to be able to screen his ship against them."

He shoved the lever clear over, slamming the extreme limit of power into the beam. The engines screamed like demented things, howling and shrieking. Instantly a tremendous sheet of solid flame spun a fiery web around the Interplanetarian, turning it into a blazing inferno of lapping, leaping fire.

A dozen terrific beams, billions of horsepower in each, stabbed back at the Invincible as the Interplanetarian shunted the terrific energy influx from the overcharged accumulators to the various automatic energy discharges.

The Invincible's screen flared in defense and the ten great engines wailed in utter agony. More stabbing flame shot from the Interplanetarian in slow explosions.

The temperature in the Invincible's control room was rising. The ozone was sharp enough to make their eyes water and nostrils burn. The vision glass was blanked out by the lapping flames that crawled and writhed over the screen outside the glass.

Russ tore his collar open, wiped his face with his shirt sleeve. "Try a pure magnetic!"

Greg, his face set and bleak as a wall of stone, grunted agreement. His fingers danced over the control manual.

Suddenly the stars outside twisted and danced, like stars gone mad, as if they were dancing a riotous jig in space, some uproariously hopping up and down while others were applauding the show that was being provided for their unblinking eyes.