The Mystery of the Flying Express

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 Singing Serpent

The Mystery of the Singing Ghost

The Black Island - Classic Colour Edition

Mr Penguin and the Lost Treasure

The Hardy Boys

The Hardy Boys solve a mystery involving the theft of a priceless ancient artifact. With fast-paced action and suspense, the boys must navigate a series of complicated clues and dangerous situations to find the truth.

Discover Your Child's Next Read

The Mystery of the Flying Express

Franklin W. Dixon, 1941

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 Singing Serpent

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

The Mystery of the Singing Ghost

Gertrude Chandler Warner, Gertrude Warner, 1992

The Black Island - Classic Colour Edition

Hergé, 1943

Mr Penguin and the Lost Treasure

Alex T. Smith, Alice Delarbre, 2017