“The Moon Weed” by Harl Vincent
“Would you mind repeating what you just said, Van?” he asked.
“You heard me the first time. I say that that’s a diamond and that it came from the moon.” Carl Vanderventer glared at his friend in resentment of his doubting tone.
“Mean to tell me you’ve been there? To the moon?”
“Certainly not. I’m not a Jules Verne adventurer. But I’m telling you that stone is a diamond of the first water and that it came from the moon. Weighs over a hundred carats, too. You can have it appraised yourself if you think I’m kidding you.”
Bart Madison laughed. “Don’t get sore, Van,” he said. “I’m not doubting your word. But Lord, man—the thing’s so incredible! It takes a little time to soak in. And you say there are more?”
“Sure. This one’s the largest of five I’ve found so far. And there’s other stuff, too. Wait till you see. Fossils, beetles and things. I tell you, Bart, the moon was inhabited at one time. I’ve the evidence and I want you to be the first to see it.” The eyes of the young scientist shone with excitement as he saw that his friend was roused to intense interest.
“So that’s what all your experimenting has been aimed at. No wonder it cost so much.”
“Yes, and you’ve been a brick for financing me. Never asked a question, either. But Bart, it’ll all come back to you now. Know how much that stone’s worth?”
“Plenty, I guess. But, forget about the financing and all that. Where’s this laboratory of yours?” Madison had pushed his chair back from his desk and was reaching for his hat.
“Over in the Ramapo Mountains, not far from Tuxedo. I’ll have you there in two hours. Sure you can spare the time to go out there now?” Vanderventer was enthusiastically eager.
“Spare the time? You just try and keep me from going!”
Neither of them noticed the sinister figure that lurked outside the door which led into the adjoining office. They chattered excitedly as they passed into the outer hall and made for the elevator.
(Read the rest of “The Moon Weed,” originally published in Astounding Stories, August, 1931)