Master of the World (French: Maître du monde), published in 1904, is one of the last novels by French pioneer science fiction writer, Jules Verne. It is a sequel to Robur the Conqueror. At the time Verne wrote the novel, his health was failing. Master of the World is a "black novel," filled with foreboding and fear of the rise of tyrants such as the novel's villain, Robur, and totalitarianism. Set in the summer of 1903, a series of unexplained events occur across the Eastern United States, caused by objects moving with such great speed that they are nearly invisible.