Worlds Without End

Their minds modified by the Machines, the Hartmann siblings see worlds differently than others do.  Gary looks to a future where his A. I. girlfriend, Henge, can live with him.  Faustina looks to her friend Tracy, whom she calls a goddess, whose soul has been lost in the internet for a decade, for a new kind of life.  A half-generation on in post-Breakup America, they, along with their family and friends in the city-state of Knoxville, try to make their way forward.
  Social and technological unknowns may hinder them, but beyond those, the worlds they seek are threatened by a madman's nuclear fire and a politician's intrigue. Picking up ten years after the breathless conclusion of "Echoes of Family Lost, " this new novel of Machine Civilization follows the relationship of human Gary Hartmann and his machine fiancée Henge.  While centered around, them the book is broken into two parts:  the desire of a human to leave our world and pass completely into the 'net and the desire of an AI to cross in the opposite direction.]