The Hardy boys mystery stories

The Hardy brothers are involved in a mystery that links whitewater rafting in Maine with a bank robbery in Washington, D.C.

The Hardy boys help a young woman find her way to her people in Africa in time to lead a revolution against a tyrannical government of rebels.

The Hardy boys set out to investigate strange happenings at the Blackwing Mansion, which appears to be haunted, and in the process help their father uncover a ring of thieves.

The Hardy Boys are given clues which send them in search of the treasure hidden by the Outlaw of the Pine Barrens.

When an important space mission is sabotaged at Cape Canaveral, the Hardy boys are called in to investigate.

The Hardy boys travel to Vermont to investigate a mysterious fire and to help a circus owner who is plagued with accidents.

On a visit to Germany the Hardy brothers investigate the theft of plans for a newly invented submarine and the mysterious disappearance of valuable coins and paintings.

Their search for an Easter Island idol takes the Hardy boys to Easter Island and on to investigate the theft of government material in Antarctica.

Frank and Joe go to Florida to investigate the sabotage of a satellite launch and uncover a theft ring involving sea animals.

The Hardy Boys are given clues which send them in search of the treasure hidden by the Outlaw of the Pine Barrens.