Hilarious superhero hijinks meet maker activities for readers to try--like a DIY tickle-torture device of dooooom!--in this second STEM graphic novel starring Maker Girl and Professor Smarts, who fight crime using the superpowers of engineering and science. Maker Girl and Professor Smarts have been captured by supervillain Queen Ka-¢hing! With her power to poof money into existence, she's gone on an online shopping spree and decked out her evil lair with the hottest supervillain gadgets. But wait! Is that death ray actually just a laser pointer taped to a toaster? Could she have been scammed? This evil lair needs a major makeover, and Maker Girl and Professor Smarts need to escape! Can they use their powers of making stuff and knowing stuff to convince Queen Ka-¢hing to let them go--in exchange for upgrading her evil lair?