A Spaceman - a specialist in robotics - has been found murdered. Lije Baley, a plainclothesman of his time, combs the vast caves of steel in a tense hunt for a lone fanatic, for a murderer and for the solution to an almost perfect crime that could set an entire galaxy ablaze. This masterly science fiction novel of suspense by the world's greatest SF author has all the pace, invention and excitement that readers all over the world have come to expect from Isaac Asimov.
Ficção científica