"Ran out on you. I thought you three were supposed to be such good buddies?"

"When the chips were down," said Astro as harshly as he could, "they turned out to be nothing but yellow rats!"

"Which way did they go?"

"I don't know," said Astro. "It happened last night. We went to sleep, and when I woke up, they were gone."

"Where'd they go?" snarled the man, pushing the ray gun into Astro's back.

"I--I--" Astro pretended he didn't want to talk.

"I'll freeze you, so help me," said the man. "I'm going to count five--one, two, three, four--"

"Don't! I'll tell you!" cried Astro. "I'm not sure, but I think they headed back for the city. We were talking about it last night. We figured it would be the best place to hide."

"Ummm. That makes sense," said the man. "I guess you're telling the truth. Now get down the hill. One false move and I'll blast you!"

Astro turned and stumbled down the hill in front of the paralo-ray gun.

A smile tugged at his lips.

Vidac and Bush were waiting for them on the highway at the bottom of the hill.

"Where are Corbett and Manning?" Vidac demanded, looking at Astro.

Astro repeated the story about Tom and Roger having deserted him.

Vidac eyed him speculatively. "They just walked out on you?" he asked.

Astro nodded.

Vidac turned to the colonists who were standing around listening to the giant Venusian's story. "All right, men," he said, "I guess he's telling the truth. Back to the city. There aren't too many places they could be hiding."

The men turned and ran for their cars. Vidac continued to look at Astro, a thin smile tugging at his lips, his eyes twinkling. "You stay here with me, Bush," said Vidac.

"But you said--"

"Never mind what I said," snapped Vidac. "I'm telling you to stay here.

Have some of the colonists double up and leave a jet car here."

In a few moments the rest of the jet cars were roaring off toward the city. Vidac waited until the last car had vanished down the road, then he turned to Astro, "Do you really think you fooled me with that stuff about Manning and Corbett running out on you?"

"What happened to them then?" asked Astro innocently.

"We'll see," said Vidac softly, looking up into the hills.

Holding a paralo-ray gun on the giant cadet, Vidac forced him into his jet car. Bush slid under the wheel and started the jets.

"You think the cadets are still up there in the hills?" asked Bush.

"Never mind what I think," snapped Vidac. "Head for the s.p.a.ceport."

Vidac spun around in his seat and looked back along the highway. He punched Astro in the shoulder and motioned for him to look. Astro turned to see the jet car left by Vidac pulling away from the hills.

"They must have heard every word I said," mused Vidac. He turned to Bush. "When they reach the s.p.a.ceport, don't bother waiting for them to get out of the car. Blast them on sight!"

"What are you going to do?" asked Astro tightly.

"Don't you remember your s.p.a.ce Code laws, Astro?" asked Vidac. "Article Sixteen? It specifically states that in cases of emergency, the commanding officer of a Solar Guard community can be the judge and jury, and can pa.s.s sentence for felonies or worse. In two hours you and your buddies will be aboard the _Polaris_, under guard, and headed for a life sentence on a prison rock!" He laughed. "And I'll make it stick!"

CHAPTER 20

Jeff Marshall was just turning the jet car into the Plaza in front of the Administration Building when Jane suddenly grabbed his arm.

"Jeff, look!" she cried. "Isn't that Captain Strong?"

The enlisted s.p.a.ceman slowed the car and followed the direction of Jane's pointing finger. He saw Strong step around the corner of the Administration Building, stop, then scurry back around to the side. The streets of the city were deserted. "He's running away from us," said Jeff. "Probably thinks we're part of that searching party coming back."

He brought the car to a screaming halt in front of the building and jumped out, calling, "Captain Strong!" His voice echoed through the deserted streets. "This is Jeff Marshall!"

Peering around the corner of the Administration Building, Strong saw Marshall clearly and then recognized the daughter of Hyram Logan. He dashed out of his hiding place and greeted them with a yell.

"Jeff! Jeff! Over here!"

The three friends of the s.p.a.ce Cadets were soon telling each other the latest developments. Strong listened to Jeff's story of the professor's work journal and shook his head disgustedly. "I was in that lab for nearly four hours this morning," he said. "If I had only known."

"Don't blame yourself, sir," said Jeff. "You didn't know it was there!"

"Let's find it now," said Jane desperately. "We're losing time. Those men back in the hills may catch the boys."

"They haven't been caught yet," a.s.serted Strong. "And if I know my cadets, those men will have a hard time nailing them. Come on!" He turned and raced into the Administration Building, heading for Professor Sykes's laboratory.

In less than five minutes Jeff was searching through the pages of the professor's work journal. "There's no telling when he made the discovery," said Jeff, scanning the ma.s.s of complicated diagrams and figures.

"It must have been soon after our arrival on Roald," said Jane. "That was when we saw him searching the hills around our farm."

Jeff flipped the pages back to the front of the book and began to read it from the beginning. "Here's something!" He quoted some figures from the book and looked at Strong.

"That make any sense to you, sir?" he asked.

"It sure does!" said Strong. "That's a preliminary survey on uranium!

He's just getting the scent there. Keep reading."

Jeff turned a few more pages and suddenly stopped. "Here it is!" he exclaimed. "And say--look at this!" He handed the journal over to Strong who began to read quickly. "'... conclusive proof found today in hills surrounding farming area of Hyram Logan. Potentially the biggest hot metal strike I've ever seen. Am going to make a report to Vidac today.

This could mean the beginning of a new era in s.p.a.ce travel. Enough fuel to send fleets of ships on protracted voyages to any part of the universe....'"