When they were out of hearing Captain Thompson turned to Johnny's father. "I don't know if I like this," he said. "Harkness may have planted that man on us. I'm certainly not going to let him get anywhere near our claws. I'll keep an eye on Saunders personally."

"But, gosh," Johnny broke in, "I heard him arg...."

"I think, Johnny," said his father sternly, "you've said and done enough for one day. The trader is a proud man and by making a fool of him you've given the colony a deadly enemy." He turned back to Captain Thompson. "We'd better change our plans, Captain. It looks like we should double, maybe even triple the guard...."


[CHAPTER FOUR]
The Third Secret

Three hours later, boy and bear were trudging through the marshberry fields toward New Plymouth Rock. Johnny's bottom was still warm from his recent session with a strap. The boy was in full armor. A leather harness was strapped to the little bear's furry blue back.

The last 'copter had long since left for the rocket field and, except for guards, the settlement was nearly empty. Because of this Johnny had been forbidden to leave his house. A lone person without a gun was supposed to be just what the arrow-birds were looking for. But Johnny wasn't afraid. He had his third secret.

Johnny reached up and carefully picked one of the apple-sized marshberries for himself. It was a rich ripe yellow color.

"They are just right this year," Johnny said to Baba.

The little bear nodded gravely. Both he and Johnny had worked hard in those fields. Everyone did. Marshberries prevented a disease called colds that Johnny had never had, and were the only crop the colonists could send back to Earth. They had to be ripe for the yearly rocket or a year's work was wasted.