Penguin Young Readers Group

The Shattered Helmet

Hardy Boys (Series)

Book 52

Franklin W. Dixon Author
(1973)

Mystery of the Whale Tattoo

Hardy Boys (Series)

Franklin W. Dixon Author
(1967)

The Mystery of the Aztec Warrior

Hardy Boys (Series)

Franklin W. Dixon Author
(1964)

The Sign of the Crooked Arrow

Hardy Boys (Series)

Book 28

Franklin W. Dixon Author
(1949)

Mystery at Devil's Paw

Hardy Boys (Series)

Franklin W. Dixon Author
(1959)

The Masked Monkey

Hardy Boys (Series)

Franklin W. Dixon Author
(1972)

The Mysterious Caravan

Hardy Boys (Series)

Book 54

Franklin W. Dixon Author
(1975)

The Witchmaster's Key

Hardy Boys (Series)

Book 55

Franklin W. Dixon Author
(1975)