Get your hands on this exciting collection of THE HARDY BOYS CASEFILES Paperback Chapter Books #21-30 by the renowned author Franklin W. Dixon. This vintage set is perfect for young adults and ages 9-12 who love action, adventure, mystery, and fiction. Join the famous brother detectives in their thrilling adventures filled with suspense and intrigue. The set includes 10 novels that are narrated in English and are in paperback format, making it easy to carry around. Whether you are a fan of the Hardy Boys series or looking for a perfect gift for a young reader, this book set is sure to keep you on the edge of your seat. So, grab your copy today and join the Hardy Boys in their exciting escapades!