Frank and Joe return that night to search the grounds, where they find some tools that were stolen from their home. It appears that Perry is the thief and Ap... read more
The Hardy's return the next night to dig up the grounds, but someone else has had the same idea, for the grounds are full of holes. Applegate finds them at w... read more
Family legends say that the treasure was booty from the War of 1812 and was awarded to his great-grandfather. The chest, which once held 3,000 doubloons wort... read more
Someone locks Iola in the Applegate storeroom at the base of the mansion's tower and she must be rescued by Frank and Joe. They also find Jackley in the stor... read more
The tower is a shambles, as if someone has been systematically tearing it apart. Fenton spots a shadowy figure and gives chase, finally catching the man in t... read more
The second note was written by a man named Jenkins, who was arrested shortly after the treasure disappeared, and the boys turn it over to the police. Word of... read more
Frank and Joe, vowing not to give up, follow Boles when he's released on bail and trailing him back to his rooming house.
While they wait outside, Boles is ... read more
Meanwhile, Joe suspects the coins may be in another tower, so when Frank spots a rundown railroad water tower, the boys decide to search it. Jackley spots th... read more
Joe's theory is right, for the gold is hidden inside. Jackley rushes there pretending to help, but he reveals his true nature and the boys fight him off. A p... read more