The Invisible Ray
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.
- Country : United States of America
- Genre : Science Fiction
- Director : Harry A. Pollard
- Cast : Ruth Clifford, Sidney Bracey, Edwards Davis, William H. Tooker, Jack Sherrill, Corene Uzzell