Dinosaur Goes Hollywood
Emil Petaja
Alpha Yes, Terra No!
The Caves of Mars
Saga of Lost Earths
The Kalevala (1)
The Star Mill
The Kalevala (2)
Lord of the Green Planet
The Green Planet (1)
The Stolen Sun
The Kalevala (3)
Tramontane
The Kalevala (4)
The Prism
Doom of the Green Planet
The Green Planet (2)
The Time Twister