Past Master
R. A. Lafferty
 Past Master is set in the year 2535 on the world of Astrobe, a utopian Earth colony that is hailed as Golden Astrobe, "mankind's third chance" after the decline of both the Old World and New World on Earth. Despite idealistic intentions, it is suffering moral and social decline that may be terminal for both Astrobe and the human race. In an attempt to save their dying civilization, its leaders use time travel to fetch Sir Thomas More (chosen for his fine legal and moral sense) from shortly before his death in the year 1535 to be the president of Astrobe. More struggles with whether to approve of the Astrobian society, noting its possible connections to his own novel Utopia. His judgements soon lead him into conflict both with destructive cosmic forces on Astrobe and with its leaders who thought him a mere figurehead who could be manipulated.