"Hey! Where are you going?"

"Down there. I'm going to ask my father. I suppose you'll believe it if *he* tells you. I suppose you'll believe a Professor of Astronomy knows what--"

He had scrambled upright.

Red said, "Hey. You don't want them to see us. We're not supposed to be here. Do you want them to start asking questions and find out about our animals?"

"I don't care. You said I was crazy."

"Snitcher! You promised you wouldn't tell."

"I'm *not* going to tell. But if they find out themselves, it's your fault, for starting an argument and saying I was crazy."

"I take it back, then," grumbled Red.

"Well, all right. You better."

In a way, Slim was disappointed. He wanted to see the space-ship at closer quarters. Still, he could not break his vow of secrecy even in spirit without at least the excuse of personal insult.

Red said, "It's awfully small for a space-ship."

"Sure, because it's probably a scout-ship."

"I'll bet Dad couldn't even get into the old thing."

So much Slim realized to be true. It was a weak point in his argument and he made no answer. His interest was absorbed by the adults.

Red rose to his feet; an elaborate attitude of boredom all about him. "Well, I guess we better be going. There's business to do and I can't spend all day here looking at some old space-ship or whatever it is. We've got to take care of the animals if we're going to be circus-folks. That's the first rule with circus-folks. They've got to take care of the animals. And," he finished virtuously, "that's what I aim to do, anyway."

Slim said, "What for, Red? They've got plenty of meat. Let's watch."

"There's no fun in watching. Besides Dad and your father are going away and I guess it's about lunch time."

Red became argumentative. "Look, Slim, we can't start acting suspicious or they're going to start investigating. Holy Smokes, don't you ever read any detective stories? When 

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