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****(1970)Eyewitness -
***(1971)Twins of Evil -
***(1973)The Legend of Hell House -
*(1973)Wolfshead: The Legend of Robin Hood -
***(1974)Dirty Mary Crazy Larry -
***(1975)Escape to Witch Mountain -
***(1978)Return from Witch Mountain -
***(1980)The Watcher in the Woods -
***(1981)The Incubus -
*(1983)Triumphs of a Man Called Horse -
***(1986)Biggles: Adventures in Time -
***(1987)American Gothic -
**(1988)Howling IV: The Original Nightmare
13 titles