"Right! Need any help?"

"No, but keep the communicator open. And take a look in the V-panel if you want." Brownell actually seemed pleased!

Janus clicked on the visipanel, turned the magnifying dials. Callisto was seen in the swimming blackness of space with the huge bulk of Jupiter as a backdrop. Under Janus' sure fingers the scene expanded, came nearer.

Minutes passed; then they saw six Patrollers speeding out to meet them. Brownell had cut rockets and they were in a drift now, waiting.

Waiting for what, Mark wondered. These Patrollers were speedy ships and deadly, equipped with atomo-bombs, dis-rays and magnetic beams! He shifted nervously.

The Patrollers came very near. Then they broke formation, arraying themselves three on each side of the outlaw ship. Magnetic beams, pale green and swirling, reached out to touch the hull. They fastened there tenaciously. In this manner they began the route back to Callisto.

Even Janus seemed a little worried now. He turned to the communicator.

"How about it, Professor? Those beams are powerful? Think you can slip out?"

"Wait and see; I promised a show, didn't I? Tell you what, though, better break out the acceleration harness!"