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