Engine of Change

Beechwood is in trouble, but Rube may just have another machine up his sleeve …
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 anonymous messages appear from someone claiming to be an ally, and he knows something is up.
With his best friends Boob and Pearl—as well as Reina, Lala, and Davin—Rube sets out to discover just what the company has in store for the people of Beechwood.
Disguises, master plans, and (of course) Rube Goldberg Machines are all part of the plan. Can Rube find the answers he needs in time to save Beechwood?