DescriptionWhen the Hardy boys eagerly agree to assist their friend Jack Dodd and his father in locating a family treasure, the two young detectives are unaware of the baffling complications that will arise.
DescriptionWhen Mr. Hardy disappears while investigating a mystery surrounding a vacant house rumored to be either haunted or an abode for criminals, the Hardy Boys search for the truth.
DescriptionDetermined to learn the secret of the old mill, Frank and Joe employ a clever use 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.
DescriptionTriggered by the disappearance of a brilliant young professor, this mystery takes the Hardy Boys first to Kenworthy College, where they find a puzzling message on an examination paper. But then their pal Chet Morton and buddy Biff Hooper turn up a clue that sends the young detectives in another direction, to the Honeycomb Caves. After many dangerous encounters, Frank and Joe discover a powerful searchlight on one of the craggy caverns along the seacoast. In the white glare of the searchlight, the startling secret of the cave is dramatically revealed.
DescriptionWhen the Hardy Boys set out to solve the mystery of their missing chums, they discover a gang hide-out in a cave on an island along the way.
DescriptionTimber wolves, a Rocky Mountain blizzard, and a mine cave-in are only a few of the perils Frank and Joe Hardy encouter during their search for the principal members of a notorious gang responsible for a payroll robbery.
DescriptionAfter a dying criminal confesses that his loot has been stashed "in the tower, " the Hardy boys make an astonishing discovery.
