The Secret of the Old Mill
by Franklin W. Dixon
“Real danger, fake money, and a mystery that's about to grind them down.”
When a wave of counterfeit cash threatens to bankrupt their town, Frank and Joe Hardy uncover a dangerous trail leading straight to a mysterious, abandoned mill. These teenage sleuths must race to expose a high-stakes forgery ring before they become the next victims of a ruthless criminal mastermind.
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