Mystery of the Desert Giant

Running on Empty (Hardy Boys Casefiles #36)

The Twin Dilemma

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

The Mystery of the Shrinking House

Mr Penguin and the Lost Treasure

Mystery at Dead End Farm

Nancy Drew and the Clue Crew Series

The Hardy Boys

Brothers Frank and Joe Hardy take on a puzzling case when they receive a shattered motorcycle helmet in the mail that belonged to their father. The helmet holds clues to a mysterious past involving Greek artifacts and a legendary city.

Discover Your Child's Next Read

Mystery of the Desert Giant

Franklin W. Dixon, 1994

Running on Empty (Hardy Boys Casefiles #36)

Franklin W. Dixon, 1993

The Twin Dilemma

Franklin W. Dixon, Carolyn Keene, 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 Shrinking House

Jack Hearne, Alfred Hitchcock, William Arden, 1972

Mr Penguin and the Lost Treasure

Alex T. Smith, Alice Delarbre, 2017

Mystery at Dead End Farm

Mary C. Jane, 1978

Nancy Drew and the Clue Crew Series

Carolyn Keene, 2015