Mystery of the Desert Giant

Running on Empty (Hardy Boys Casefiles #36)

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

The Gross Ghost Mystery (Frank and Joe Hardy: The Clues Brothers #1)

The Witch Tree Symbol

La oreja rota (rústica)

The Mystery of the Flaming Footprints

Mr Penguin and the Lost Treasure

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

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

Franklin W. Dixon, Carolyn Keene, 2008

The Gross Ghost Mystery (Frank and Joe Hardy: The Clues Brothers #1)

Franklin W. Dixon, 1997

The Witch Tree Symbol

Carolyn Keene, 1955

La oreja rota (rústica)

Georges Remi, Hergé, Concepción Zendrera Ferrés, 1937

The Mystery of the Flaming Footprints

M. V. Carey, Mary Carey, 1971

Mr Penguin and the Lost Treasure

Alex T. Smith, Alice Delarbre, 2017