Frictional Losses
John W. Campbell, Jr.
Tripods Trilogy
John Christopher
Tripods (99)
Martians Come in Clouds
Philip K. Dick
The Cloak and the Staff
Gordon R. Dickson
Shane Evert (1)
Rats, Bats & Vats
Dave Freer & Eric Flint
Rats, Bats and Vats (1)
A for Andromeda
Fred Hoyle & John Elliot
Andromeda (1)
Dreamcatcher
Stephen King
Invasion from Mars
Howard Koch
Invaders of Earth (14)
A Hymn Before Battle
John Ringo
Michael O'Neal's Story Arc (1)
Homesmind
Pamela Sargent
Watchstar (3)
Worldwar: In the Balance
Harry Turtledove
Worldwar (1)
Worldwar: Tilting the Balance
Worldwar (2)
Worldwar: Upsetting the Balance
Worldwar (3)
Worldwar: Striking the Balance
Worldwar (4)
The War of the Worlds
H. G. Wells
The War of the Worlds (1)
Darwinia
Robert Charles Wilson
The Midwich Cuckoos
John Wyndham