The Great Radium Mystery

A serial in 12 chapters. Tarzan goes to Guatemala to find his lost friend, D'Arnot. On the way he helps Major Matling search Mayan ruins for hidden...

Commando Cody, 'Sky Marshal of the Universe', works with American scientists Joan Gilbert and Ted Richards in the development of a flying suit and a...

Hunted by government agents and constantly assaulted by a cartel of vengeful thugs, an amnesiac known only as "626" searches for her true identity...

Two competing teams of scientists search the African jungles for a secret formula.

Crash Corrigan, a recent graduate of Annapolis, and Diana, a go-getting reporter, join Professor Norton for a search for the source of a string of...

Jeff Scott is sent to investigate problems with wagon trains attempting to make the journey to Oregon. Sam Morgan has sent his henchmen, under...

Science fiction serial.

From the Universal synopsis: Retired Inspector Blake of Scotland Yard learns that Lord Blanton has acquired the sacred "Love Ring"---a cursed jewel...

A pilot and a gold mine owner go up against the evil Black Hawk, who has invented a plane that can take off and land without using a runway.

A young newspaperwoman travels to a South Seas island to search for buried treasure.

Space hero Captain Video battles the evil Vultura on the planet Atoma.