Engine of Change is the third title in the hilarious Rube Goldberg and His Amazing Machines series by bestselling author Brandon T. Snider and featuring black-and-white illustrations by award-winning artist Ed Steckley.

 
Evil Professor Zeero has disappeared, Superintendent Atwater has been put in his place, and all is right again in Beechwood... or is it?
 
When Rube Goldberg discovers the Null Corporation is building a giant machine in his beloved junkyard, he suspects something nefarious is at play. Then when he begins receiving anonymous messages from someone claiming to be an ally, he knows something is up. Together with his best friends Boob and Pearl, as well as friends like Reina, Lala, and Davin, Rube sets out to find out just what the company has planned for their town.
 
To throw a wrench in things, Rube’s dad has made an unexpected trip home, and Rube struggles to find the best way to share his new passion for problem-solving with the person he loves the most. Can Rube find all the answers he needs in time to save Beechwood?
 
Disguises, master plans, and, above all, Rube Goldberg Machines come together in this hilarious third title in the Rube Goldberg and His Amazing Machines series.