Brilliant and ambitious Science Ninja Eureka Fermi wedges, ramps, and wheels her way through Julie Joules' lost laboratory in search of the Nova Battery - an abandoned prototype that could revolutionize energy. Should be easy - especially if she pulls in her super-powered, genetically-modified pals Carlos and Mei. But a blown curfew, screwy obstacles, and an army of apologetic robots leaves the trio desperate, overleveraged and definitely in Big Trouble! Along the ride, readers 8 and up learn principles of force, work, mechanical advantage, and compound machines. There's even an illustrated appendix of experiments readers can do at home to build their own simple machines and reinforce what they've learned!