by Cixin Liu · 2010
Half a century after the Doomsday Battle, aerospace engineer Cheng Xin wakes from hibernation into the Deterrence Era, in which the threat of mutually-assured destruction between Earth and the Trisolaran invaders has kept an uneasy peace; she inherits the "Swordholder" role controlling humanity's broadcast deterrent, and the narrative follows her choices (and the coded fairy tales sent by Yun Tianming) across the fall of deterrence, humanity's exile to Australia and later the Bunker and Broadcast Eras, and on toward the fate of the solar system.