This book is part of a book series called Lego Exo-Force Junior Chapter .

This book has been graded for interest at 7-10 years.

This is a chapter book. Publishers market early chapter books at readers aged 6-10 years. This book was published 2006 by Scholastic US .

Greg Farshtey is Mister BIONICLE: Editor-in-Chief for the line for Lego, author of all chapter books, and principal creator of the world.