Book #3 takes up more or less where Book #1 left off ( unlike Book #2) with Jo’s boy crushes and Mrs. Freep, the teacher, knowing Jo is a superhero. Grandpa Joe texts Jo, “Car thieves in Chinatown. Go get ’em, Jo.”

Numb Skull’s plan is to have all the other bad guys and villains in San Francisco to busy themselves with crimes, so Jo wouldn’t have time to stop him or “he would be left alone to do his evil deeds.” (p. 10)  Numb Skull’s personal “plan was all about sinking a cruise ship full of gazillionaires and stealing their priceless jewels.” (p. 23)

Meanwhile, Jo gets the SUPERHERO INSTRUCTION MANUEL out to learn how to shape shift.  Jo’s first shape shift is into Frankenstein’s monster, while she is asleep. Then, Jo must fight the night’s crime in this form. Later, Jo begins to shape shift when she sneezes. This happens while Jo is on San Francisco Bay. She shifts into an anchor and sinks to the bottom. Being an anchor, she can’t sneeze, but Jo has time to think. She learns to shape shift just in time to foil Numb Skull’s plan and save the day.