The Eugenics Wars: The Rise and Fall of Khan Noonien Singh is a two volume set of novels written by Greg Cox about the life of the fictional Star Trek character Khan Noonien Singh. He is often referred to as simply "Khan" in the Star Trek episode "Space Seed" and in the Star Trek film Star Trek II: The Wrath of Khan. The novels detail Khan's life until he leaves the Earth in the DY-100 sleeper ship SS Botany Bay later found by the Enterprise. They are written mostly in the perspective of the fictional characters Gary Seven and Roberta Lincoln, Gary Seven's partner. Both characters appear in the Star Trek episode "Assignment: Earth". These books are mentioned in the Director's Edition DVD of The Wrath of Khan, in an interview contained as one of the extras. Greg Cox explains that the passing of the 1990s in reality required a reinterpretation of the Eugenics Wars that were originally said to take place in the same decade. Source: Wikipedia (en)