The Secret of the Old Mill (Hardy Boys, Book 3)
by By Dixon, Franklin W.
Category: Juvenile Fiction , Mysteries & Detective Stories

With two cases in tow, the Hardy boys look to Turner mill for clues. Determined to learn the secret of the old mill, Frank and Joe employ a clever ruse to gain entrance, only to find themselves trapped. How the young detectives extricate themselves from this dangerous situation and unravel mysteries will keep readers tense with suspense!