Restored by the George Eastman House in 2001, this 1928 serial was considered a “last hurrah” for the silent-era serial, and brought together some of the biggest names of the era: director J.P. McGowan, actors Francis Ford and Joe Bonomo (a carnival strongman-turned-actor), producer Trem Carr (who would later help found Monogram Pictures), and a slew of silent-era supporting icons such as Ruth Hiatt, Grace Cunard, and more. Chapter names like “The Clutching Claw,” “The Devil’s Dice, “Galloping Fury,” and “The Invisible Hand” offer all one needs to know of the film’s concerns: to promise and deliver as much action and suspense as possible, and move our intrepid hero and heroine from one perilous situation to another. One of the biggest stars of the early silent era and a successful serials director in his own right, Francis Ford was the brother of director John Ford.

Joe Bonomo
Joe Masters

Ruth Hiatt
Sally Warren, Chemist

Francis Ford
The Sphinx

George Chesebro

Sheldon Lewis

Ernest Shields

Jack Richardson

Grace Cunard

Rosemary Theby

Peggy O'Day
Duke Worne

Helen Gibson

Bruce Gentry
Bruce Gentry

Pearl of the Army
Pearl of the Army

The Adventures of Kathlyn
The Adventures of Kathlyn

King of the Mounties
King of the Mounties

King of the Wild
King of the Wild

The Lost Jungle
The Lost Jungle

The King of the Kongo
The King of the Kongo

The Wolf Dog
The Wolf Dog

King of the Rocket Men
King of the Rocket Men

The Million Dollar Mystery
The Million Dollar Mystery

The Adventures of Smilin' Jack
The Adventures of Smilin' Jack

The Girl Detective
The Girl Detective