This is volume 7 in Hardy Boys Clue Books .

This book has been graded for interest at 6-9 years. This book is part of a reading scheme, meaning that it is a book aimed at children who are learning to read.

There are 96 pages in this book. This is a chapter book. Publishers market early chapter books at readers aged 6-10 years. This book was published 2018 by Aladdin Paperbacks .

Franklin W. Dixon is the author of the ever-popular Hardy Boys books. Santy Gutierrez resides in the seaside city of La Coruna, Spain. He has won acclaim as the Best Spanish Young Editorial Cartoonist and Best Galician Caricaturist, among others.