Description: The Tower Treasure
A dying criminal confesses that his loot has been stored 'in the tower.' Both towers of the looted mansion are searched in vain. It remains for the Hardy boys to make an astonishing discovery that clears up the mystery and clears the name of a friends father.
The House on the Cliff
Frank and Joe Hardy are investigating a mysterious old house high on the cliffs above Barmet Bay when they are frightened off by a scream. The boys return to the apparently haunted house when they make a connection between the place and a smuggling case their father is working on. When their father goes missing; they have to investigate the caves beneath the house and confront the smugglers.
The Secret of the Old Mill
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!
The Missing Chums
Two of the Hardy Boys's chums take a motor trip down the coast. They disappear and are almost rescued by their friends when all are captured. A thrilling story of adventure.
Hunting for Hidden Gold
Frank and Jo Hardy are the sons of the famous detective Fenton Hardy and; like their father; they are superb crime-fighters.
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