| Author/Contributor(s): | Dixon, Franklin W. |
| Publisher: | Grosset & Dunlap |
| Date: | 6/1/1927 |
| Binding: | Hardcover |
| Condition: | NEW |
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!