Patapata Hikousen no Bouken — Episode 15

Jane's mother dies when she is born, and her father, a rich English aristocrat, soon remarries to a woman with a son, William, who despises his new father and brother. George and Jane grow up with a dream to make a flying machine. George believes the distant Asian sands hold a secret: a mysterious cerulean sand which can make machines fly. He goes on an expedition to find it, and soon is reported executed for treason