Clark shook his head, just as stubbornly. "It don't make sense," he said. "Smallness and bigness wouldn't have a thing to do with it. There's another factor somewhere, a factor we've never even thought of. Sutton got through all right and he crashed and if he was in the ship when it crashed, he died. But he didn't get through because his ship was small. It was for some other reason."

The men sat tense, thinking, waiting.

"Why Sutton?" Anderson asked, finally.

Adams answered quietly. "The ship was small. We could only send one man. We picked the man we thought could do the best job if he did get through."

"And Sutton was the best man?"

"He was," said Adams, crisply.

Anderson said amiably, "Well, apparently, he was. He got through."

"Or was let through," said Blackburn.

"Not necessarily," said Anderson.

"It follows," Blackburn contended. "Why did we want to get into the Cygnian system? To find out if it was dangerous. That was the idea, wasn't it?"