The planet's natives were so similar to their conquerors that no one could tell them apart--except for their difference in thinking.
consternation ran through them as they realized the class president was missing.
"Billy! Billy!" the instructor called.
There was no answer.
"I just don't understand this. He knows he should remain with us."
"Maybe some of these horrible natives grabbed him!" Susan Sidwell said. The group was startled--and suddenly afraid.
* * * * *
The instructor took a deep breath. "I have a Thor gun. I'll go find him. Joe, you are in charge of the group until I return. All of you remain in the middle of the street and don't move."
The instructor went back along the street. He was exasperated and a little alarmed. If anything happened to Billy, how could he explain the matter to the gate captain or to Billy's parents?
"Billy!" he called again and again.
Suddenly he had an answer from an alley.
"Here, sir--here I am. Are you looking for me? I'm sorry, sir." Billy himself appeared in the alley.
Reassured at the sight of the youth, but angry,
The Earth's conquerors allow the remaining Earthlings to live in their museum/reservations, and graduating classes of conqueror children visit the museums to view the specimens and learn about history. But not all the specimens are tame.
The plotting is kind of clunky (there's no reason for the changeling question,) and the characters are hard to tell apart. An okay story, nothing special.