Hardy Boys 03: The Secret of the Old Mill
, by Dixon, Franklin W. (Author)Note: Supplemental materials are not guaranteed with Rental or Used book purchases.
- ISBN: 9780448089034 | 0448089033
- Cover: Hardcover
- Copyright: 1/1/1927
Determined to learn the secret of the old mill, Frank and Joe employ a clever ruse to gain entrance and become trapped. There they unravel two mysteries, one involving a counterfeiting case and the other, a national security case their father is working on.