The authorized sequel to Arthur C. Clarke's science fiction classic Against the Fall of Night, set on a dying planet Earth millions of years in the future.

In Against the Fall of Night, a young man named Alvin ventures beyond the domed city of Diaspar to explore a planet Earth left nearly barren by a centuries-old cataclysm. What he discovers is the thriving rural civilization of Lys and an insane non-corporeal being known as the Mad Mind-a danger to humanity that is safely imprisoned.

In Beyond the Fall of Night, author and astrophysicist Gregory Benford has written the authorized sequel to Clarke's tale-one that takes us centuries even further into the future. Having reunited Diaspar and Lys, Alvin now works to repopulate the Earth with original species resurrected from a library of ancient genetic information. Among these resurrected beings is Cley, a Cro-Magnon and sole survivor of her tribe. Cley joins forces with Alvin and a large, intelligent rodent named Seeker to eliminate the threat from the Mad Mind once and for all-and clear the way for life in the Solar System to thrive.