This lot includes 13 vintage Hardy Boys books by author Franklin W. Dixon. The books are hardcover and feature a matte blue and glossy finish. The series is targeted towards young adults aged 9-12, with an emphasis on action, adventure, and mystery genres. Published by Grosset & Dunlap in the United States, these novels are illustrated and provide thrilling narratives perfect for young readers. A great addition to any book collection for fans of classic children's and young adult literature.