the Great War being fought with paratroopers and zeppelins. Characters The main character, a 13-year-old boy living in Manchester, is an inventor following the paths of his father and grandfather. He possesses a mechanical talent that was inherited from his family, and demonstrates this in at least two instances by building a steam-powered monowheel and a steam-propelled flying device. He has a youthful idealism and sincerely dislikes the employment of technology for harmful purposes. During the film his motivations are alternately swayed by the influences of his father and grandfather. Selfish, spoiled, misguided, yet whimsical and not completely heartless; she is the American 14-year-old granddaughter of the chairman of the O'Hara Foundation. She matures as a result of her encounter with Ray. Her character is based upon the fictional character of the same name, from the novel Gone with the Wind. Ray's idealistic grandfather. The original conceiver of the Steamball, which he succeeds in developing with his son Edward. Lloyd's pursuit of progress without much regards to safety and ignorance of Eddy's pleading directly leads to his son's disfigurement. A difference of opinions with his son Edward leads to friction between them. While Edward believes that science is an instrument of power, Lloyd simply wishes to use it to help people. They both develop distinctly different visions for their ultimate invention, the Steam Castle. It is later revealed that Lloyd intended the Steam Castle to be a sort of flying amusement park, but Eddy scoffed at such a premise, denouncing it as a "fairy tale vision". Edward instead built the Steam Castle as a flying military fortress. Ray's father. The accident that occurred in the development of the Steamball left Edward in a state where he needed to have machinery replace some of his body, including his right arm and parts of his legs. It left him not only physically disfigured, but it severely twisted his morals as well, driving him to believe that science is an expression of mankind's ultimate power. Edward's father calls him Eddy. He uses the Foundation and the Exhibition as a springboard to launch his ultimate invention: a monstrous, flying war machine called the Steam Castle. Edward and Lloyd Steam's friend and rival, a major player in the Industrial Revolution. He claims that he wishes to use the Steam Ball for the good of the British Empire, but exactly how he plans to do it