Foundation’s Edge (Foundation Series: Sequels)

It is 498 years since the two Foundations came into existence - half-way through the Interregnum planned by Hari Seldon. The Second Foundation has once more successfully concealed its existence so that the laws of psychohistory can operate to usher in a new Empire ruled by the mental sciences.

Reviews

‘One of the most staggering achievements in modern SF’
The Times
‘Isaac Asimov was one of the great explainers of the age…It will never be known how many practicing scientists today, in how many countries, owe their initial inspiration to a book, article, or short story by Isaac Asimov’
Carl Sagan
‘Asimov displayed one of the most dynamic imaginations in science fiction’
Daily Telegraph
‘Asimov’s career was one of the most formidable in science fiction’
The Times