This book is part of a book series called Urban Underground .

This book has been graded for interest at 12-17 years.

There are 163 pages in this book. This book was published 2012 by Turtleback Books .

K. A. Applegate is the author of the bestselling Animorphs series, as well as the Remnants and Everworld series, Home of the Brave, and the Roscoe Riley Rules series. She lives in Tiburon, California.