Against the Fall of Night / Beyond the Fall of Night

Against the Fall of Night is one of Arthur C. Clarke's earliest extended works of fiction. Set in the very far future, it tells the story of a young man, Alvin, the only child to be born in the enclosed city of Diaspar for many centuries.
Dissatisfied with the stasis of Utopian life in the city, Alvin discovers that Diaspar is not. as its inhabitants believe, the only city left on an Earth turned to desert. There is another city, Lys, whose people have remained close to nature. For Alvin, this discovery is the first step in a journey that will take him to the stars - and to the truth about the universe.
In Benford's sequel Alvin's discoveries have led to a renaissance; man is reclaiminf the Earth and even recreating earlier species of humanity. But along with creativity, evil has returned to the Earth...

Ficção científica