They know that most of the bad money is circulated in this vicinity and in and around Boston," he concluded. "It's just possible the plant may be in the Hub." There the talk came to an end and the boys walked away as they knew their father was getting ready for a hurried trip to the city.
"It's a good chance for us to do some real detective work," said Frank to his brother one afternoon after school, as they were in the gymnasium in the barn back of the Hardy home. "The whole city is worked up over this counterfeit money business."
"Smarter detectives than we are are working on the case," Joe pointed out, "but they haven't found much yet."
"Paul Blum won't talk. If we could get something out of him we might have a clue to go on."
"He won't say a word. It's my opinion he doesn't know much about the source of the counterfeit money, anyway. I think he was only an agent sent out to dispose of as much of it as he could. They probably have a dozen men traveling around the country passing off these bad bills. Once the money gets into circulation it's liable to pass through a dozen hands before it is discovered."
"Perhaps that man who stung the garage owner for twenty dollars had no idea the
