He felt very drowsy after the mental exertion of following Bennie's explanations, and the air was indubitably a trifle close in there. Mrs. Tassifer also was having hard work to keep awake. Rhoda, beckoning to Professor Hooker, tiptoed into the control-room.

"Those two old dears will be sound asleep in three minutes," she whispered. "I want to talk to you. Where is the kitchen—galley, or whatever you call it?"

Bennie led her through the condenser-room into a white-tiled apartment furnished with both gas and electric stoves. There were chairs there and a table, and Rhoda took possession of one and pointed to the other.

"Yes," she repeated; "I want to talk to you—seriously."

The ordinarily unobservant Bennie noticed that she was dressed in the same trim tan suit she had worn when he first met her, and that her cheeks were quite pink. She looked very nice there, in that white-tiled room—very nice indeed! This was the second time he had been struck by that salient fact. If all girls were like her! But most of them were, unfortunately, more like Miss Beebe. He sat down opposite her and lit his pipe. Somehow, he never felt the slightest awkwardness when in her company—always at his best! She had a brain like—well, even better than Seabury's, for instance, and a figure—His eye followed the line of the tailor-made suit, and his heart pumped noticeably. Too much tobacco, he thought.

"Look here," she said, with determination: "Don't start this fool adventure. There is still the possibility that the moon may turn the asteroid aside." He looked at her, astounded. "Oh, I mean it!" she insisted, wrinkling her brows. "This machine is all very well—in theory. It will go. But we all know that it won't come back!"

"Of course it will come back," he retorted, "unless it busts!"

"It's a thousand-to-one-shot!"

"Supposing it is—isn't it up to me to go?" he replied simply. "It's the only chance to save the earth from destruction. I'd be the worst sort of a coward if I didn't. You wouldn't want me to show the white feather—now!"

He stopped short at the look in her eyes—such a queer look. Her cheeks had become quite pale.