Frank Einstein and the Evoblaster Belt (Frank Einstein Series '4): Book Four, Paperback

In the fourth book in the New York Times bestselling Frank Einstein series, kid genius, scientist, and inventor Frank Einstein, along with his best friend, Watson, team up with robots Klink and Klank to compete with T. Edison. This time, they go on a quest to unlock the power behind the science of life with Frank's newest invention--the EvoBelt--which allows the user to evolve (and devolve) into other life forms, blasting from one species to another.