The secret of the old mill

by Franklin W. Dixon

"Doesn't he let you help him in the mill?"

"No. I've offered to help, but none of them will let me come into the workroom."

"Workroom? Don't they use the whole mill?"

"Only the stone room where the new machinery is."

"And the old machinery isn't being used at all?"

"No."

At that moment there was an interruption. A shout from the mill attracted their attention and, looking up, they saw Uncle Dock standing in the doorway.

"Lester!" he bellowed angrily.

"Yes?"

"Come up here this minute," ordered the old man. He left the door and came down the slope toward the river.