This is volume 1 in Riley Mack .

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

There are 320 pages in this book. This book was published 2012 by HarperCollins .

CHRIS GRABENSTEIN is the #1 New York Times bestselling author of many books, as well as the co-author of numerous fun and funny page-turners for young readers with James Patterson. Chris lives in New York City with his wife, J. J. , two cats, and a dog named Fred.