In 1883 New York, while trying to introduce her mother's flying machine to the men-only Inventors' Guild, twelve-year-old Molly uncovers a plot to destroy the World's Fair.
Molly, Emmett, and Molly's mother compete in a high-profile race to become the first people to reach the South Pole, where Emmett's father, explorer and ship captain Wendell Lee, disappeared years ago.
