The Prince of Peril
Otis Adelbert Kline
Grandon (2)
The Outlaws of Mars
Swordsman of Mars (2)
Children of the Atom
Wilmar H. Shiras & Chelsea Quinn Yarbro
Children of the Atom (1)
The Black Galaxy
Murray Leinster
Rod Cantrell (1)
That Hideous Strength
C. S. Lewis
Cosmic Trilogy (3)
The Thames Valley Catastrophe
Grant Allen
Man-Kzin Wars XII
Larry Niven
Man-Kzin Wars (12)
Procession of the Dead
Darren Shan
The City (1)
Men and Machines
Robert Silverberg
City
Clifford D. Simak
City (1)
Nightfall
Isaac Asimov & Robert Silverberg
Metropolis
Thea von Harbou
The Savage Gentleman
Philip Wylie
After Worlds Collide
Philip Wylie & Edwin Balmer
Bronson Beta (2)
Sirius: A Fantasy of Love and Discord
Olaf Stapledon
A Journey in Other Worlds: A Romance of the Future
John Jacob Astor
Looking Backward, 2000-1887
Edward Bellamy
Julian West (1)
A Princess of Mars
Edgar Rice Burroughs
Barsoom (1)
The People That Time Forgot
Caspak (2)
The Master Mind of Mars
Barsoom (6)