Wonder of the Waves by Jim Lombardo

What if a person was walking the Earth who knew the answers to the greatest mysteries of life and the Universe? What if everyone on the planet suddenly needed that person? What if that person was a six-year-old girl? Wonder of the Waves is the story of Hannah Blake, a child born with superhuman intelligence. After her meteoric rise to global popularity, the fun and games turn to serious business when the world is threatened by a veiled menace that no one is able to stop. In order to keep the Universe from disappearing, six-year-old Hannah must unlock nature's ultimate secret.