"But just as the big fellow was about to cook me for good and all," he concluded, "something happened to the current, and to the gravity at the same time—"

"That was when I pulled the lever in the dome building!" exclaimed Brand.

He told of what had befallen him in the Rogan power-house. "That lever, Dex!" he said swiftly. "It's the keynote of the whole business. It absolutely controls the pull of gravity, and Lord knows what else besides. If we could only get at it again! Perhaps we could not only shut it off so that Jupiter's pull would function again, but also reverse the process so its gravity would be increased! Think what that would mean! Every Rogan in the red empire stretched out and immovable, possibly crushed in by his own weight!"

"It's a wonderful thought," sighed Dex; while Greca's eyes glowed with a sudden hope for her enslaved race, "but I don't see how we could ever—"

He stopped; and glanced in alarm down the passage behind them. Greca and Brand, hearing the same soft noise, whirled to look, too.


ar down the passage, just sneaking around the bend, was a group of Rogan guards, each armed with a death-tube.

"Back to the pen!" cried Brand.

He slid the bolt, and jerked the door open. They rushed into the walled enclosure again, the slamming of the door behind them cutting off the enraged squeals of the Rogans.