At high noon by my Earth watch I sighted a low white structure on one of the distant islands. Moments later we made a landing at a rude jetty, and Grannie Annie was introducing me to Ezra Karn.

He was not as old a man as I had expected, but he was ragged and unkempt with iron gray hair falling almost to his shoulders. He was dressed in varpa cloth, the Venus equivalent of buckskin, and on his head was an enormous flop-brimmed hat.

"Glad to meet you," he said, shaking my hand. "Any friend of Miss Flowers is a friend of mine." He ushered us down the catwalk into his hut.

The place was a two room affair, small but comfortable. The latest type of visi set in one corner showed that Karn was not isolated from civilization entirely.

Grannie Annie came to the point abruptly. When she had explained the object of our trip, the prospector became thoughtful.

"Green Flames, eh?" he repeated slowly. "Well yes, I suppose I could find that space ship again. That is, if I wanted to."

"What do you mean?" Grannie paused in the act of rolling herself a cigarette. "You know where it is, don't you?"

"Ye-s," Karn nodded. "But like I told you before, that ship lies in Varsoom country, and that isn't exactly a summer vacation spot."

"What are the Varsoom?" I asked. "A native tribe?"

Karn shook his head. "They're a form of life that's never been seen by Earthmen. Strictly speaking, they're no more than a form of energy."