Title: Beyond the fall of night
Description: From the back cover Ace paperback May 1991:

Arthur C. Clarke's brilliant novella, *Against the Fall of Night*, takes us billions of years into the future.  A young man named Alvin rebels against the machine-fed ease of his existence, discovers the long-hidden truth about human history, and forces his people to face their destiny among the stars.  This is his story, expanded and continued by the award-winning Gregory Benford.  A breathtaking journey into new and startling realms of possibility...
Subjects: Science fiction, Fiction, science fiction, general