The Ace of Scotland Yard

From the Universal synopsis: Retired Inspector Blake of Scotland Yard learns that Lord Blanton has acquired the sacred "Love Ring"---a cursed jewel that has brought grief to its previous owners. Prince Darius seeks to obtain the ring, and the mummy of a princess of an ancient country to return them to his homeland.

• Ray TaylorDirector

• Crauford KentInspector Angus Blake
• Florence AllenLady Diana Blanton
• Albert PriscoPrince Darius (as Albert Priscoe)
• Monte MontagueJarvis
• Grace CunardMary Duveen- aka Queen of Diamonds
• Herbert PriorLord Blanton