Mystery of the Desert Giant

Running on Empty (Hardy Boys Casefiles #36)

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 Clue of the Black Keys

The Haunted Mask

The Secret Keepers

Legend of the Star Runner: A Timmi Tobbson Adventure

The Hardy Boys

The Hardy Boys' adventure to the Yucatan Peninsula in Mexico where they investigate the mystery of the stone idol and stumble upon an illegal smuggling operation.

Discover Your Child's Next Read

Mystery of the Desert Giant

Franklin W. Dixon, 1994

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

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

Franklin W. Dixon, 1997

The Clue of the Black Keys

Carolyn Keene, 1951

The Haunted Mask

R.L. Stine, 1993

The Secret Keepers

Diana Sudyka, Trenton Lee Stewart, Stewart Lee, 2016

Legend of the Star Runner: A Timmi Tobbson Adventure

J Wagner, 2018