lear masked his close scrutiny of the factor under his idle and expressionless gaze. He was not ready to jump to the conclusion that Morones' uneasiness sprang from a sense of guilt. Guilty or not, he had a right to feel uneasy. The man would be dense indeed if he did not realize he was in line for suspicion, and he did not look dense. Indeed, he was obviously a shrewd character.

"Let me see your 'lucene."

Morones rose. Despite his bulk he stepped nimbly. He had the nimbleness of a Saturnian bear, which is great, as some of the earlier explorers learned to their dismay.

"That's the first sensible question you've asked," Morones snorted. "Take a look at our 'lucene. Ha! Have a good look!"

He led the way across the compound, waved his hand before the door of a strongly built shed in a swift, definite combination, and the door opened, revealing the interior. He waved invitingly.

"You go first," Olear said.

With a sneer Morones stepped in. "You're safe, boy, you're safe."

Olear looked at the small pile on the floor in astonishment. Instead of the beautiful, semi-transparent chips of translucene, the dried sap of a Mercurian tree which is invaluable to the world as the source of an unfailing cancer cure, there were only a few dirty, dried up shavings, hardly worth shipping back to Earth for refining. The full significance of the affair began to dawn on the officer. The translucene trees grew only in this favored section of Mercury, and the Earth company had a monopoly of the entire supply. Justly, for only on Earth was cancer known, and it was on the increase. That small, almost useless pile on the floor connoted a terrible drug famine for the human race.