Leo and His Time Travelling Scooter. Recommended for ages 8-12. One boy. One scooter. Infinite mayhem. When twelve-year-old inventor Leo accidentally turns his homemade scooter into a time machine, history goes off the rails. From dodging dinosaurs to battling ancient curses and futuristic robots, Leo must fix time before it's too late. With a biscuit-loving alien, a grumpy robot, and a girl from another century, adventure has never been this fast… or this funny.