The Mummy Case

The Hardy Boys Secret Files Collection Books 1-5

The Twin Dilemma

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

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

This Book Is Not Good for You

The Case Of The Hidden Holiday Riddle (The New Adventures of Mary-Kate & Ashley #44)

Kate on the Case

The Hardy Boys

The Hardy Boys, Frank and Joe, are on the case to uncover the secrets of an old mill. With a counterfeiting ring in their town, the boys must use their detective skills to solve the mystery and bring the criminals to justice.

Discover Your Child's Next Read

The Mummy Case

Franklin W. Dixon, 1980

The Hardy Boys Secret Files Collection Books 1-5

Franklin W. Dixon, Scott Burroughs, 2014

The Twin Dilemma

Franklin W. Dixon, Carolyn Keene, 1993

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

Franklin W. Dixon, 1997

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

Franklin W. Dixon, Carolyn Keene, 2008

This Book Is Not Good for You

Pseudonymous Bosch, 2009

The Case Of The Hidden Holiday Riddle (The New Adventures of Mary-Kate & Ashley #44)

Jean Waricha, Mary-Kate Olsen, 2004

Kate on the Case

Hannah Peck, 2021