Adult 18+ sci-fi books

30978 books

Defender of the Flame
Defender of the Flame
John B. Rosenman
PG-13
The Garden Gnomes Secret
The Garden Gnomes Secret
Dorothy M. Mitchell
PG-13
Rusted Heroes
Rusted Heroes
Andrew Post
PG-13
After Birth
After Birth
J. E. Sayles
PG-13
The Hunger Star
The Hunger Star
Chris Atack
PG-13
Echo Location
Echo Location
Frances Pauli
PG-13
The Weeping Woman
The Weeping Woman
Patricia Santos Marcantonio
PG-13
Time Step
Time Step
Brent Monahan
PG-13
Beyond the Rainbow Flash
Beyond the Rainbow Flash
Andrew Connan
PG-13
Beginning a Beginning
Beginning a Beginning
Danny Birt
PG-13
The Form of Eternity
The Form of Eternity
Shiloh Darke
PG-13
Darkmouth
Darkmouth
Shane Hegarty
PG-13
Feast of the Saints
Feast of the Saints
Kim Antieau
PG-13
The Shaman's Secret
The Shaman's Secret
Karen Hughes
PG-13
The Chance of a Lifetime
The Chance of a Lifetime
Mark Finn
PG-13
Whispers in the Cries
Whispers in the Cries
Matthew Ewald
PG-13
Wings of the Overlord
Wings of the Overlord
Morton Faulkner
PG-13
Darkness
Darkness
Paul Dale Anderson
PG-13
The Book of Titus
The Book of Titus
Justin Hunter
PG-13
A Rebel's Stone
A Rebel's Stone
PT McHugh
R
Cat-astrophe
Cat-astrophe
J. Carlysle Ramsey
PG-13
Jericho Jones and the Forgotten Fortress
Jericho Jones and the Forgotten Fortress
J. Carlysle Ramsey
R
Armagiddeon: Genesis
Armagiddeon: Genesis
J. Carlysle Ramsey
PG-13
Martin and His Friend From Outer Space
Martin and His Friend From Outer Space
Ivo Duka; Helena Kolda
R
Atilus the Gladiator
Atilus the Gladiator
E. C. Tubb
R
Darktraders
Darktraders
Rosemary Edghill
R
Masters of Evolution
Masters of Evolution
Damon Knight
PG-13
Happiness
Happiness
Frederick Pollack
R
Double Blind
Double Blind
Sara Stamey
R
Journey to Amanah: The Beginning
Journey to Amanah: The Beginning
Colleen K. Snyder
R