Eon

From the New York Times –bestselling author of War Dogs : A novel that “may be the best constructed hard SF epic yet” ( The Washington Post ).   In a supernova flash, the asteroid arrived and entered Earth’s orbit. Three hundred kilometers in length, it is not solid rock but a series of hollowed-out chambers housing ancient, abandoned cities of human origin, a civilization named Thistledown. The people who lived there survived a nuclear holocaust that nearly rendered humanity extinct—more t