As he spoke, his face was utterly guileless.

Lesbee gazed at that mask of innocence, and he thought hopelessly: "What's wrong? Why isn't he really agreeing? Is it because he doesn't want to lose his command so quickly?"

Sitting there, unhappily fighting for the other's life, he tried to place himself mentally in the position of the commander of a vessel, tried to look at the prospect of a return to view. It was hard to picture such a reality. But presently it seemed to him that he understood.

He said gently, feeling his way, "It would be kind of a shame to return without having made a successful landing anywhere. With this new speed, we could visit a dozen sun systems, and still get home in a year."

The look that came into Browne's face for a fleeting moment told Lesbee that he had penetrated to the thought in the man's mind.

The next instant, Browne was shaking his head vigorously. "This is no time for side excursions," he said. "We'll leave explorations of new star systems to future expeditions. The people of this ship have served their term. We go straight home."

Browne's face was now completely relaxed. His blue eyes shone with truth and sincerity.

There was nothing further that Lesbee could say. The gulf between Browne and himself could not be bridged.

The commander had to kill his rival, so that he might finally return to Earth and report that the mission of the Hope of Man was accomplished.