This lot of 76 vintage Hardy Boys Casefiles paperback books from the 1980s features first edition novels by author Franklin W. Dixon. The series, targeted at ages 9-12, offers a mix of crime, thriller, adventure, and children & young adult genres, making it an engaging read for young mystery enthusiasts. With an original English language publication year of 1984, this collection of books provides a nostalgic glimpse into the world of young adult mysteries set in the 1980s.