Sir James Blake has retired from Scotland Yard so that he can assist his niece Hope and her friend Jerry in developing an apparatus they have invented. Sir James thinks that their invention has the potential to prevent wars, and plans to donate it to the League of Nations. But a gang of criminals led by the elusive "Scorpion" steals the device, and Blake and his associates must recover the invention and determine the identity of the "Scorpion".
A serial in 12 chapters. Tarzan goes to Guatemala to find his lost friend, D'Arnot. On the way he h...
A mad scientist named Dr. Satan plots to steal key pieces of technology to enable him to build an ar...
Lieutenant Commander John Byrne of the Naval Secret Service and his partner Pvt. Bill Riggers chase ...
German adaptation of Maurice Leblanc's "Arsène Lupin versus Herlock Sholmes" stories. German copyrig...
Dr. Mabuse and his organization of criminals are in the process of completing their latest scheme, a...
The evil and masked "Gargoyle" is sabotaging all of America's industrial plants. It is up to the Spi...
Prof. Millard pretends to be dead and helps Jeff King ferret out Vulcan, the evil traitor at the sci...
A series of 2-reel thrillers in which a society girl has a position as a special investigator for th...
A beautiful young woman is a daring master thief. She meets the young millionaire Thomas Babbington ...
A young heiress of an American gun factory is threatened by a masked man after her father was murder...
Carter Holmes, master criminologist, must help the oft-kidnapped Ruth Stanhope to find the 9 daggers...
The Wrecker wrecks trains on the L & R Railroad. One of his victims is Larry Baker's father. Baker w...
When an unscrupulous banker ruins his family, a young man swears to bring him to justice, so he adop...
The female leader of an international crime ring steals a valuable artifact that can give her the po...
Two federal agents battle a gang that hijacks trucks carrying materials vital for the security of th...
The heirs of Anton Benson are searching Bensonhurst for hidden gold; they are joined by a reporter, ...
For decades, pirates roamed the seas, searching for booty to plunder and coastal villages to terrori...
A murderous gang of counterfeiters has kidnapped the government's best engraver and is forcing him t...