The Star Mill
Emil Petaja
The Kalevala (2)
Saga of Lost Earths
The Kalevala (1)
Doom of the Green Planet
The Green Planet (2)
Lord of the Green Planet
The Green Planet (1)
Seed of the Dreamers
The Nets of Space
The Path Beyond the Stars
The Time Twister
The Prism
The Caves of Mars
Alpha Yes, Terra No!