The third book in the New York Times bestselling series that's full of funny jokes, clever science experiments, and robot hijinks."I never thought science could be funny . . . until I read Frank Einstein. It will have kids laughing." —Jeff Kinney, Diary of a Wimpy Kid In Frank Einstein and the BrainTurbo,Frank creates the BrainTurbo to power-boost the human body and help his baseball-pitching pal Janegoodall make the team. But when his overly expressive robot pal, Klank, goes missing, they must first rescue him and stop T. Edison—Frank's classmate and archrival—from stealing their latest invention and using it against them! Integrating real science facts with wacky humor, a silly cast of characters, and science fiction, this uniquely engaging series is an irresistible chemical reaction for middle grade readers. With easy-to-read language and graphic illustrations on almost every page, this chapter book series is a must for reluctant readers.