This book is part of a book series called The Code Busters Club .

This book has been graded for interest at 8-12 years.

There are 192 pages in this book. This book was published 2016 by Darby Creek (Tm) .

Penny Warner has written over 30 books, including 5 books in the Connor Westphal mystery series, which features a deaf reporter in California gold country. Her book Dead Body Language was nominated for an Agatha Award and won a Macavity Award for Best First Mystery. Warner is a former Brownie and Girl Scout, as well as a troop leader.