the interior of Greenland. This Knowall was a psychiatrist, the foremost on Earth."

"What's a psychiatrist?"

"A dealer in ideas."

"Then, he was very rich?"

"He'd been the richest human on Earth. After some profound thought, Knowall figured a way to rid the earth of the An-vils."

"How, papa?"

"He perfected a method, called the Knowall-Hughes, Ilinski technique, of imbuing these An-vils with human emotions."

"What does 'imbuing' mean?"

"He filled them full of and made them aware of."

Zenia interrupted, "Aren't you talking a bit above the child's understanding, Drake?"

"No, mama," said Zoe. "I understand what papa explained. Now, don't interrupt."

"So, Knowall," continued Drake, "filled the An-vils with human feelings such as Love, Hate, Ambition, Jealousy, Malice, Envy, Despair, Hope, Fear, Shame and so on. Very soon the An-vils were acting like humans, and in ten days, terrible civil wars wiped out the An-vils' population by two-thirds."

"Then, papa, the An-vils finally killed off each other?"

"Almost, until among them a being named Zalibar, full of saintliness and persuasion, preached the brotherhood of all An-vils. The invaders, quickly converted, quit their quarrels, and the Earth-lings were even more enslaved."

"Oh, papa, weren't Knowall and his followers in Greenland awfully sad the way things had turned out?"

"For a while. Then Knowall came up with the final pay-off."

"Is that slang, papa? Pay-off?"

"Yes. The coup-de-grace. The ace in the hole that he'd saved, if all else failed."

"I understand, papa. The idea that would out-trump anything the other side had to offer. What was it, father? What did they have?"

"Knowall imbued the An-vils with nostalgia."

"What is nostalgia?"

"Home sickness."

"Oh, papa, wasn't Knowall smart? That meant, the An-vils were all filled with the desire to fly back to the star from where they had started."

"Exactly. So, one day, all the An-vils, an immense army, flapping their great green wings, assembled in the Black Hills of North America, and, at a given signal, they all rose up from Earth and all the humans chanted, 'Glory, glory, the day of our deliverance!'"

"So then, father, all the An-vils flew away from Earth?"

"Not all. There were two child An-vils, one male and one female, aged two years, who had been born on Earth, and they started off with all the other An-vils and flew up into the sky. But when they reached the upper limits of the strato-sphere, they hesitated, turned tail and fluttered back to Earth where they had been born. Their names were Zizzo and Zizza."

"And what happened to Zizzo and Zizza, papa?"

"Well, like all the An-vils, they were great mathematicians. So, they multiplied."

"Oh, papa," laughed Zoe, flapping her wings excitedly, "that was a very nice story!"

Transcriber's Note:

This etext was produced from Amazing Stories Oct.-Nov. 1953. Extensive research did not uncover any evidence that the U.S. copyright on this publication was renewed. Minor spelling and typographical errors have been corrected without note.