The Invisible Ray
The Greatest Serial the World has ever seen
A scientist discovers a death ray and locks it in a box, giving the key to his daughter, who soon finds herself hunted by criminals looking to steal the deadly mineral.
- Year: 1920
- Country: United States of America
- Genre: Science Fiction
- Studio: The Frohman Amusement Corp.
- Keyword: mutant, silent film, death ray, lost film, serial
- Director: Harry A. Pollard
- Cast: Ruth Clifford, Sidney Bracey, Edwards Davis, William H. Tooker, Jack Sherrill, Corene Uzzell