e changed his course slightly and headed directly for the monster, again increasing speed. Perhaps—if he calculated the forces correctly—he could dive through it again with the D-ray to clear a path. But no. It was a miracle they had escaped before, and now the vicious thing was more than double its previous size. Once more he altered his course. He'd cross in front of the thing; skim it as close as he dared and shoot from its influence on the far side. The greater mass of the enemy vessels and their lack of a quick-acting repulsive force would prove their undoing.

Full speed ahead. A rapid mental calculation—an educated guess, rather—and he set the automatic control. Turning around to start for the stern compartment, he saw that Ora had recovered from her swoon and now stood swaying weakly in the passageway.

"Ora!" he exclaimed delightedly. He rushed to her side and supported her in a tender embrace.

"Rapaju?" she questioned with horror in her eyes.

"Won't bother you for a while, dear. But your father—Mado?"

"He gassed them. They'll recover." The brave girl had regained her composure.

"Good! But, come! Time's short." He half carried her to the rear, berating himself the while for his inability to pay her closer attention. With arms still around her he placed her at one of the stern ports.

"What is it, Carr?" She sensed his excitement.

"The fleet—see! We'll destroy them."

The spherical vessels were close behind, huddled together in mass formation and following the Nomad blindly.