Bruce Kellogg

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 profitable business, insists to Charlie that something is fishy and that someone is out to murder him. Charlie and his "crew" travel to the mine, pretending to be tourists staying at a nearby dude ranch so as not to arouse suspicion, and discover that the owner may well be right... (imdb)

Scientists use a gigantic drilling machine for an expedition to the center of the earth. (imdb)

Lamont Cranston assumes his secret identity as "The Shadow", to break up an attempted robbery at an attorney's office. When the police search the scene, Cranston must assume the identity of the attorney. Before he can leave, a phone call summons the attorney to the home of Delthern, a wealthy client, who wants a new will drawn up. As Cranston meets with him, Delthern is suddenly shot, and Cranston is quickly caught up in a new mystery. (imdb)

Honest Plush Brannon is a con-man thrown out of the Barbary Coast in San Francisco in the 1880s and headed for the gold rush region of Nevada. He discovers a real mine which lead to several complications. (imdb)

Deerslayer, a white man who was brought up by the Mohicans, helps his old tribe when the Hurons steal Princess Wah Tah, the betrothed of his friend Jingo-Good. His friends, the Hutters, are a white family living on an ark in the middle of a lake. The Hurons attack them and Deerslayer enlists the aid of scout Harry March, who is escorting sixty-five brides to the near-by settlement. Deerslayer and Harry are both in love with Judith Hutter, who is secretly in love with Harry. (imdb)