Opar, La città immortale
Philip José Farmer
Khokarsa (2)
La casa sulla roccia
Antonio Monda
Raven Prince
Elizabeth Hoyt
Princes Trilogy (2)
One Bad Apple
Sheila Connolly
Orchard Mystery (1)
I, Robot
Isaac Asimov
Robot, chronological order (0.10)
The Rest of the Robots
Robot, chronological order (0.20)