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It's humans vs nature! All these books feature struggles in or with nature. Rainforests, deserts, mountains, ice plains, humanity must overcome--or maybe just survive--them all.

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Sisters Under the Skin: A SciFi Caving Novell...
E.C. Stever
Venom and Vines
D.H. Dunn
Virgo - Mindscape Trilogy Epilogue - A Romant...
D. N. Leo
Silkpunk and Steam
Sarina Dorie
Extinction Lost
Nicholas Smith
Where a Spaceship Goes to Die
George Saoulidis
Atmospheric Pressure
Aaron Frale
Watcher's Web
Patty Jansen
Two Miles Down
David McGowan
Servant of the Crown (Heir to the Crown: Book...
Paul J Bennett
The Arrival
Adair Hart
The Girl Who Braved The Himalayan Tsunami
Vidyut Rautela
The Beginning - Edge of War (Prequel)
R. Malak
The Accidental Text
AJ Combs
Birth of a Star
Wayne Meyers
Promises Promises
Chris Andrews
Archangel Down. Archangel Project. Book One
C. Gockel
Harbinger: Ancient Purge Book 0
M.C. Bass
Gehenna Dawn by Jay Allan
Discover Sci-Fi
Mech Troopers
Charles Eugene Anderson
Fire Fight - The Fire Planets Saga #1 (Instaf...
Chris Ward
Pisces - Silver Blood Collection
D. N. Leo
The Hard Choice
Fuad Baloch
Planet Emergency
Christian Bæk Hedegaard
The Curse of the Lifewalker
Joe Vasicek
Archer of the Heathland: War of the One-Eyed...
J.W. Elliot
The Backworlds
M. Pax
Tales of an Untold Past
Mark Russo
Shanakee's Tale
D. F. Wink
Breakers of the Dawn
Zachariah Wahrer
The Shell of a Person
Lance Pototschnik
One Way Ticket - A Travelers Series Story
Alia Hess
The Creeper Dance, Reaper #1
Darcy Lennox