Step into the wonderfully wacky world of Franny, a self-proclaimed mad scientist who thinks inventing is the absolute best! Franny is determined to share her passion and show her classmates just how thrilling and fun science can be. For her latest, most ambitious experiment, she gathers a few willing volunteers, a half-completed two-headed robot, and a bubbling invisibility potion. But even for a genius like Franny, this experiment might prove to be her toughest challenge yet. What do you do when your friends don't quite grasp the basics of mad science, and your doubly dumb robot starts causing all sorts of unexpected, hilarious chaos? Join Franny as she learns that sometimes the greatest discoveries aren't just about potions and robots, but about friendship and finding common ground, even when things get a little invisible. This humorous chapter book is packed with scientific fun and laugh-out-loud moments for young readers.