Trial and Terror (The Hardy Boys Book 147)

Diplomatic Deceit (Hardy Boys Casefiles, No. 38)

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)

The Hardy Boys #15: Live Free, Die Hardy! (Hardy Boys Graphic Novels, 15)

New Adventures of Mary-Kate & Ashley #41: The Case of the Dog Show Mystery: (The Case of the Dog Show Mystery)

Eat Your Poison, Dear (Sebastian Barth Mysteries)

The Hardy Boys

In 'The Mark of the Blue Tattoo,' Frank and Joe Hardy are drawn into a mystery involving a strange blue tattoo that appears on the arm of their friend Chet Morton. The tattoo is a clue that leads the Hardy Boys on a dangerous adventure as they try to uncover the secret behind a smuggling operation. As they delve deeper into the case, they encounter a cast of suspicious characters and must use their detective skills to navigate through a series of twists and turns. The brothers must act quickly to solve the mystery and bring the culprits to justice before more harm can be done. Throughout the book, the Hardys demonstrate their bravery, intelligence, and unwavering commitment to solving the case, showcasing the enduring appeal of the Hardy Boys series.

Perseverance

Courage

Friendship

The Mark of the Blue Tattoo (The Hardy Boys Book 146)

Discover Your Child's Next Read

Trial and Terror (The Hardy Boys Book 147)

Franklin W. Dixon, 1997

Diplomatic Deceit (Hardy Boys Casefiles, No. 38)

Franklin W. Dixon, 1990

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

The Hardy Boys #15: Live Free, Die Hardy! (Hardy Boys Graphic Novels, 15)

Scott Lobdell, Paulo Henrique, 2008

New Adventures of Mary-Kate & Ashley #41: The Case of the Dog Show Mystery: (The Case of the Dog Show Mystery)

Melinda Metz, Mary-Kate Olsen, 2004

Eat Your Poison, Dear (Sebastian Barth Mysteries)

James Howe, 1986