Thirteen-year-old Rosie Beckett has never strayed further from her family's farm than a horse can pull a cart. Then a letter from her Aunt Euterpe arrives, and everything changes. It's 1893, the year of the World's Columbian Exposition-the "wonder of the age"-a.k.a. the Chicago World's Fair. Aunt Euterpe is inviting the Becketts to come for a visit and go to the fair! Award-winning author Richard Peck's fresh, realistic, and fun-filled writing truly brings the World's Fair-and Rosie and her family-to life.

In 1893, thirteen-year-old Rosie and members of her family travel from their Illinois farm to Chicago to visit Aunt Euterpe and attend the World's Columbian Exposition, where they encounter Buffalo Bill and Lillian Russell.