Adult 18+ sci-fi books

30978 books

Hidden Wheel
Hidden Wheel
Michael T. Fournier
PG-13
Huntress
Huntress
Renee Carter Hall
PG-13
The Northern Approach
The Northern Approach
Jim Galford
PG-13
Friendship Dance
Friendship Dance
Titania Woods
PG-13
W. B Yeats and the Secret Masters of the World
W. B Yeats and the Secret Masters of the World
P. R. Jennings
PG-13
The Sanctuary of Eldon
The Sanctuary of Eldon
M. L. Hamilton
PG-13
Kell and the Giants
Kell and the Giants
Darcy Pattison
PG-13
The Fort
The Fort
R. R. Haywood
PG-13
The Man Who Shot John Wilkes Booth, Part II
The Man Who Shot John Wilkes Booth, Part II
Kevin G. Summers
PG-13
Pacifists' War
Pacifists' War
Lelia Rose Foreman
R
Fear Weaver
Fear Weaver
David Thompson
PG-13
One Hot January
One Hot January
J. Conrad Guest
PG-13
Pyrotechnicon: Being a True Account of Cyrano de Bergerac's Further Adventures Among the States and Empires of the Stars
Pyrotechnicon: Being a True Account of Cyrano de Bergerac's Further Adventures Among the States and Empires of the Stars
Adam Browne
PG-13
The Last Sunset
The Last Sunset
Clark Hays; Kathleen McFall
PG-13
The Daughters of the Stars
The Daughters of the Stars
Mary Crary
PG-13
The Crimson Hour
The Crimson Hour
Julie Tetel Andresen
R
Cosmic Thunder
Cosmic Thunder
William John Watkins
R
Mr. O'Malley Goes for the Gold
Mr. O'Malley Goes for the Gold
Crockett Johnson
PG-13
Moscow 1979
Moscow 1979
Erik von Kuehnelt-Leddihn; Christiane von Kuehnelt-Leddihn
PG-13
Harvey Drew and the Bling Bots
Harvey Drew and the Bling Bots
Cas Lester
PG-13
Iron Song
Iron Song
Travis Ludvigson
PG-13
The Warring Dead
The Warring Dead
David Monette
PG-13
Resurgence
Resurgence
Joshua James
PG-13
Caterpillar
Caterpillar
William Tedford
PG-13
The Book of Names
The Book of Names
David Michael Slater
PG-13
Monsterville: A Lissa Black Production
Monsterville: A Lissa Black Production
Sarah S. Reida
PG-13
The Very Naughty Velociraptor
The Very Naughty Velociraptor
Nick Falk
PG-13
The Zar'aranos Deception
The Zar'aranos Deception
Jeffrey Debris
PG-13
The Aliens of Summer
The Aliens of Summer
Calvin Ross
PG-13
Last Deadly Lie
Last Deadly Lie
Caleb Pirtle, III
PG