Gli Umanoidi
Jack Williamson
Cosmo oro (13)
Deluge
Anne McCaffrey & Elizabeth Ann Scarborough
Twins of Pataybee Trilogy (1)
Il cerchio dei dodici
Katherine Kurtz & Deborah T. Harris
The Adept (2)
Rex tremendae maiestatis
Valerio Evangelisti
Strade blu (1)
Death Quest
L. Ron Hubbard
Mission Earth (6)
Voyage of Vengeance
Mission Earth (7)
Invaders Plan
Mission Earth (1)
Doomed Planet
Mission Earth (10)
Enemy Within
Mission Earth (4)
An Alien Affair
Mission Earth (3)
Disaster
Mission Earth (8)
Black Genesis
Mission Earth (2)
Fortune of Fear
Mission Earth (5)
Villainy Victorious
Mission Earth (9)