The ShortWave Mystery

The Twin Dilemma

Running on Empty (Hardy Boys Casefiles #36)

Danger Overseas (Nancy Drew: Girl Detective and Hardy Boys: Undercover Brothers Super Mystery #2)

The Mystery of the Singing Serpent

Mysteries Collection 3 in 1 Vol 3 (The Mysteries Series)

Good Work Secret Seven

The Famous Five Collection 7: Books 19, 20 and 21

The Hardy Boys

When a world-renowned scientist vanishes along with his high-tech invention, Frank and Joe Hardy are determined to track him down. Their pursuit leads to a freighter adrift in the Atlantic Ocean that carries a mysterious cargo.

Discover Your Child's Next Read

The ShortWave Mystery

Franklin W. Dixon, 1945

The Twin Dilemma

Franklin W. Dixon, Carolyn Keene, 1993

Running on Empty (Hardy Boys Casefiles #36)

Franklin W. Dixon, 1993

Danger Overseas (Nancy Drew: Girl Detective and Hardy Boys: Undercover Brothers Super Mystery #2)

Franklin W. Dixon, Carolyn Keene, 2008

The Mystery of the Singing Serpent

Ed Vebell, M. V. Carey, Mary Carey, 1972

Mysteries Collection 3 in 1 Vol 3 (The Mysteries Series)

Enid Blyton, 2013

Good Work Secret Seven

Enid Blyton, 1954

The Famous Five Collection 7: Books 19, 20 and 21

Enid Blyton, 2021