"I'm curious about this patent food story," Frank said. "It's queer there wasn't anything in the papers about it. Nobody except the farmers, like Stummer, seems to have heard about the mill being taken over."

"Oh, probably they want to keep it to themselves until everything is ready," Jerry pointed out. "I'll bet you're beginning to see some kind of mystery in this already, Frank. Chances are we'll just get kicked off the premises for our pains."

"Oh, I don't think there's any mystery about it," said Frank, with a smile. "But I'm just curious to know what it's all about."

"No law against that," Phil agreed. "If this breakfast food invention of theirs turns out to be something wonderful that makes us all live about twenty years longer, we can say we were among the very first to know about it."

By this time they had drawn closer to the mill race, and the boy standing there had raised his head and seen them.

He was a good-looking fellow, not unlike Joe Hardy in appearance, as Carl Stummer had pointed out. But his face was pinched and drawn and there was a melancholy expression in his eyes.

"Looks as if he hadn't had a square meal in a month," Jerry remarked.

The boy turned and began to move toward Frank and Joe.

He had gone only a few paces, however, when they saw him suddenly stumble. He had stepped upon a loose stone that had rolled from beneath his foot.

He wavered uncertainly, striving to regain his balance. Then, with a shrill cry, he toppled over into the mill race and fell with a splash into the swiftly rushing torrent of water.