The Hidden Harbor Mystery

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

The Feather Chase

The Last Dogs: The Vanishing (The Last Dogs, 1)

The Disappearing Friend Mystery

The Hardy Boys

The Hardy Boys series continues as our protagonists, Frank and Joe Hardy, find themselves embroiled in a mystery involving a ring of car thieves operating out of Bayport's airport. Through a series of suspenseful twists and turns, the boys manage to unravel the mystery in their usual, thrilling fashion.

Discover Your Child's Next Read

The Hidden Harbor Mystery

Franklin W. Dixon, 1935

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

The Feather Chase

Shannon Brown, 2014

The Last Dogs: The Vanishing (The Last Dogs, 1)

Christopher Holt, Greg Call, 2012

The Disappearing Friend Mystery

Gertrude Warner, Gertrude Chandler Warner, 1991