In the fifth book of the New York Timesbestselling Frank Einstein series, Frank Einstein (kid genius, scientist, and inventor) and his best friend, Watson, pair up with Klink (a self-assembled artificial-intelligence entity) and Klank (a mostlyself-assembled and artificial almostintelligence entity) to compete with T. Edison, their classmate and archrival. This time they're studying the science and mysteries of our very own home planet: Earth!