The Mark on the Door

The Twin Dilemma

Running on Empty (Hardy Boys Casefiles #36)

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

Nancy Drew: #5,43

The Mystery of the Silver Spider

House Arrest (Mystery Files of Shelby Woo, No.6)

Holly and The Missing Dog: A Holly Lewis Mystery (The Holly Lewis Mystery Series Book 4)

The Hardy Boys

Two teenage brothers, Frank and Joe Hardy, embark on an adventurous mission to solve a mystery surrounding a hissing serpent, with their intelligence and bravery.

Problem-Solving

Adventure

Courage

Friendship

Family And Relationships

The Clue of the Hissing Serpent

Discover Your Child's Next Read

The Mark on the Door

Franklin W. Dixon, 1934

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

Nancy Drew: #5,43

Carolyn Keene, 1994

The Mystery of the Silver Spider

Robert Arthur, 1967

House Arrest (Mystery Files of Shelby Woo, No.6)

Lydia C. Marano, 1998

Holly and The Missing Dog: A Holly Lewis Mystery (The Holly Lewis Mystery Series Book 4)

Dianne Harman, 2019