Return of the Homework Machine Reprint edition

Brenton, Snik, Judy, and Kelsey are all back for another year of school and another mystery. When they discover that the superchip that made The Homework Machine possible has fallen into the wrong hands, they are determined to get it back. Combine that with their quest to discover a rumored Egyptian treasure below the rim of the Grand Canyon and readers are in for another entertaining and thought-provoking book.