The Haunted Fort

The Hardy Boys Secret Files Collection Books 1-5

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

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

The Haunted Bridge

Mystery In Rocky Mountain National Park

The Haunted Castle

Demons of the Ocean: Vampirates

The Hardy Boys

The Hardy Boys, Frank and Joe, are invited by a friend to explore a trail reportedly haunted by vampires. As they delve into the mystery, they uncover a network of thieves in a plot that's more sinister than they could ever imagine.

Discover Your Child's Next Read

The Haunted Fort

Franklin W. Dixon, R.H. Tandy, 1964

The Hardy Boys Secret Files Collection Books 1-5

Franklin W. Dixon, Scott Burroughs, 2014

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

Franklin W. Dixon, Carolyn Keene, 2008

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

Franklin W. Dixon, 1997

The Haunted Bridge

Carolyn Keene, Mildred Benson, 1937

Mystery In Rocky Mountain National Park

Johnson Aaron, 2022

The Haunted Castle

Geronimo Stilton, 2018

Demons of the Ocean: Vampirates

Justin Somper, 2005