Open Library
Sci-Fi
The future, written before it arrives.
21,060 books
When the Tripods Came (The Tripods #0.5)
Sam Youd
The Rise of Endymion
Dan Simmons
The X Factor
Andre Norton
Foundation's Fear
Gregory Benford
Foundation's Triumph
David Brin
The Girl Who Heard Dragons (Pern #8.5)
Anne McCaffrey
Who Goes There?
John W. Campbell
Interstellar Pig
William Sleator
Logan's run
William F. Nolan
The white hart
Nancy Springer
Mirror Dance
Lois McMaster Bujold
The Uplift War
David Brin
Star Gate
Andre Norton
Wheel of the winds
M. J. Engh
Imzadi
Peter David
Teranesia
Greg Egan
This is How You Lose the Time War
Amal El-Mohtar
The Whole Man
John Brunner
Victory on Janus
Andre Norton
The Forgotten
Katherine Applegate