Ubik Philip K. Dick Ubik Philip K. Dick · 1969 First published 11 years earlier Save Continue from here
The End of Eternity Isaac Asimov The End of Eternity Isaac Asimov · 1971 First published 9 years earlier Save Continue from here
Rendezvous with Rama Arthur C. Clarke Rendezvous with Rama Arthur C. Clarke · 1953 First published 27 years earlier Save Continue from here
