Alien Skies (1962)
Spykos 4: Strange Life-forms on Unexplored Planets (1962)
     aka Spaceways
Once in Time (1963)
     aka Mind Probe
The Sands of Time (1963)
Mars 314 (1970) (writing as Frank J Pinchin)
Two Equals One (1982)
Stargrail (1989) (writing as Frank J Pinchin)
Nexweb (1990) (writing as Frank J Pinchin)