The Sinister Signpost

The Hardy Boys Secret Files Collection Books 1-5

The Twin Dilemma

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 Mystery of the Cranky Collector

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

The Black Island - Classic Colour Edition

The Hardy Boys

In the thirty-sixth book of the Hardy Boys series, the Hardy boys face a difficult challenge when a new invention, a machine that can make a man invisible, is stolen from their father's client. The brothers travel to Kentucky to investigate a series of strange occurrences at a recently constructed bridge, finding themselves drawn into a web of danger and intrigue that requires all their detective skills to solve.

Discover Your Child's Next Read

The Sinister Signpost

Franklin W. Dixon, 1936

The Hardy Boys Secret Files Collection Books 1-5

Franklin W. Dixon, Scott Burroughs, 2014

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

Franklin W. Dixon, 1997

The Mystery of the Cranky Collector

M. V. Carey, Mary Carey, 1987

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

Lydia C. Marano, 1998

The Black Island - Classic Colour Edition

Hergé, 1943