Claire Forrest seeks her kidnapped scientist father, hidden somewhere on Mystery Island. He is held and forced to work on diabolical inventions by Captain Mephisto, a costumed villain.

A criminal mastermind known as The Crimson Ghost is out to steal a device called the Cyclotrode, which can short-circuit all electrical current on the planet.

The heirs of Anton Benson are searching Bensonhurst for hidden gold; they are joined by a reporter, a gangster…and a masked fiend known as The Iron Claw.

Claire Forrest seeks her kidnapped scientist father, hidden somewhere on Mystery Island. He is held and forced to work on diabolical inventions by Captain Mephisto, a costumed villain.

A gold mine in Arizona, that was formerly losing a lot of money, suddenly turns into a veritable money-making machine. However, the owner, instead of being happy about his now…

The Durango Kid is a sort of Robin Hood of the West who helps the lovely Walters (who replaced Starrett’s usual love-interest, Iris Meredith), the daughter of a homesteader, defeat…

When his young son is shot, John Wellington kills the culprit and flees. But his son Johnny recovers and is raised by Sir George. Some twenty years later Johnny sets…

Bob Marlow is sent undercover to an Arizona town where an outlaw gang, comprised of the six Tolliver brothers, have taken over the town and terrorizing the citizens. He comes…

A lawman takes on gangsters attempting to steal property wanted for a railroad.

When a small town doctor buries his twin brother, a practitioner of the black arts, he believes him dead; but subsequent events force him to realize that his brother has,…

In New York’s 1880’s newspaper district a dedicated journalist manages to set up his own paper. It is an immediate success but attracts increasing opposition from one of the bigger…