Time and Again

After two decades in space, a man returns to Earth as something new and not completely human, in this “enormously inventive” novel by a Nebula Award winner (Galaxy Science Fiction).

Twenty years ago, Asher Sutton vanished somewhere in the star system 61 Cygni, an inaccessible corner of the universe that humankind has thus far been unable to explore. Now Asher has returned to Earth, having impossib...