Zarkon, Lord of the Unknown
1 The Nemesis of Evil (1975)
2 Invisible Death (1975)
3 The Volcano Ogre (1976)
4 The Earth-Shaker (1982)
5 Horror Wears Blue (1987)
2 Invisible Death (1975)
3 The Volcano Ogre (1976)
4 The Earth-Shaker (1982)
5 Horror Wears Blue (1987)
