There's nothing better than being a mad scientist-at least according to Franny. So she's making it her mission to help her classmates discover their own inner mad scientists. All Franny needs for her latest experiment is a few volunteers, a half-completed two-headed robot, and an invisibility potion.Only this experiment just might prove to be Franny's most difficult. Because what do you do when your classmates don't know anything about mad science-and there's a doubly dumb robot running amok to prove it?.