Get ready for thrilling action and suspense with "The Hardy Boys Casefiles" chapter books by Franklin W. Dixon. Follow the adventures of amateur detectives Frank and Joe as they solve mysteries and uncover secrets in this vintage 1980s series. This set includes books 31-40, all paperback format and in English language. With topics of adventure and mystery, these books are perfect for young adult readers aged 9-12. The book club edition was published in 1987 by Archway Publishing in the United States. Each book measures 5 inches in length, 7 inches in height, and 0.5 inches in width. Don't miss out on this chance to own a piece of literary history!