The House on the Cliff (Hardy Boys)

The Twin Dilemma

DEAD SEASON

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

The Mystery of the Coughing Dragon

Nancy Drew: #5,43

The Famous Five Collection 7: Books 19, 20 and 21

The Case of the Ugly Bug Virus (The Dirk Beetle Detective Agency Book 1)

The Hardy Boys

The Hardy Boys, Frank and Joe, are teenage detectives who go on an adventure to solve the mystery of the Tower Treasure: stolen jewels which were thought to be hidden in the old tower mansion of miserly railroad magnate, Silas Applegate.

Discover Your Child's Next Read

The House on the Cliff (Hardy Boys)

Franklin W. Dixon, 1927

The Twin Dilemma

Franklin W. Dixon, Carolyn Keene, 1993

DEAD SEASON

Franklin W. Dixon, 1990

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

Franklin W. Dixon, Carolyn Keene, 2008

The Mystery of the Coughing Dragon

Nick West, Robert Arthur, 1970

Nancy Drew: #5,43

Carolyn Keene, 1994

The Famous Five Collection 7: Books 19, 20 and 21

Enid Blyton, 2021

The Case of the Ugly Bug Virus (The Dirk Beetle Detective Agency Book 1)

Julian Barritt, 2013