The Secret of the Old Mill (Hardy Boys #3) (Paperback)

The Secret of the Old Mill (Hardy Boys #3) By Franklin W. Dixon Cover Image
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This is book number 3 in the Hardy Boys series.


Amateur sleuths Frank and Joe Hardy investigate a counterfeit operation while their detective father is connected to a secret case involving national security. An old mill on the outskirts of town appears to hold the key to solving both crimes. Determined to learn the secret of the old mill, Frank and Joe devise a clever scheme to gain entrance, only to find themselves trapped in an underground tunnel. Ranking on the All-Time Bestselling Children's Books list, the third installment of the Hardy Boy series will have readers on the edge of their seats.

Product Details
ISBN: 9780486851464
ISBN-10: 048685146X
Publisher: Dover Publications
Publication Date: June 14th, 2023
Pages: 160
Language: English
Series: Hardy Boys