Join Frank and Joe, two adventurous teenage brothers with a knack for solving mysteries, in the third installment of the classic mystery series for young readers: The Hardy Boys!

When counterfeit money starts showing up around Bayport, the Hardy boys are determined to find out who’s behind the scheme. Determined to help, Frank and Joe set out to investigate. Their investigation leads them to an abandoned old mill on the outskirts of town, and the place is filled with eerie noises, hidden rooms, and dangerous secrets.

As they dig deeper, they realize they’re not the only ones interested in the mill’s mysteries—someone is watching, and they’ll stop at nothing to keep the boys away. Can Frank and Joe crack the case and stop the counterfeiters before they’re caught in a trap?

Publishers Note: This audiobook edition of The Secret of the Old Mill is based on the first edition, originally published in 1927, not the 1962 revision.