Unknown Treasures (1926)
Genres: Horror, Silent
Cast: Gladys Hulette, Robert Agnew, John Miljan
Unknown Treasures is a 1926 American silent horror film directed by Archie Mayo and starring Gladys Hulette, Robert Agnew and John Miljan. The screenplay by Charles A. Logue was based on a short story written by Mary Spain Vigus called The House Behind the Hedge. Although the film is considered lost today, it is said to have been a straight forward "old dark house" film without the usual 1920s comedy elements. Gustav von Seyffertitz plays the mad doctor in the film, and later went on to appear in several other horror films, including The Bat Whispers (1930) and Son of Frankenstein (1939). Director Mayo started out making comedic shorts, but moved on in later life to directing more prestigious films. He only directed two horror films however, this one and Svengali .