The Ships of Durostorum / Alton's Unguessable
Kenneth Bulmer & Jeff Sutton
Whirlpool of Stars
Tully Zetford & Kenneth Bulmer
Ryder Hook (1)
Star City
Kenneth Bulmer
Ryder Hook (3)
The Suns of Scorpio
Alan Burt Akers & Kenneth Bulmer
Delian Cycle (2)