"Max's baby sister arrives with two little strands of red hair at exactly the stroke of midnight. Maxine receives a superhero's welcome: Grandma and Grandpa make presents, Madame Thunderbolt and Captain Lightning show her off at the office, and Max is there for her first steps, her first words, and her first book. Then, just as everyone expects her to, she flies! But not all superheroes wear masks and capes, and Maxine is determined to be herself,...