The Second War of the Worlds is a book written by George H. Smith, and one of many unofficial sequels to The War of the Worlds, others including Edison's Conquest of Mars. The book tells the story of how the Martians make their second attempt to eliminate the Humans of Earth, compared to Edison's Conquest, in which Humans retaliate against Mars and try to destroy the Martian population, or at least its ability to make war. This article is a , you can help by expanding it. This article is in need of sources, please introduce sources to this article to give it a higher standard of quality.