B. Reeves Eason

An undercover Army captain links missing gold and murder to a gambler's ghost.

Two expeditions are trying to reach the Lost City of Zoloz -- one headed by Professor Davidson, a scientist who wants to establish an archaeological site, and the other by a greedy treasure hunter who wants to keep the fabled treasures of the city for himself. An agent of a foreign power also wants to establish a secret airbase there, ...

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 earthquakes, Atlantis. They ride Prof. Norton's rocket submarine searching the sea and little Billy Norton, the professor's son stows away, of course. When they find Atlantis they are caught in a war between peaceful Atlanteans, ...

A 15-episode serial in which Beatty goes to darkest Africa to rescue the Goddess of Joba, who is being held by the high priest.

Corporal Larry Grant and Sergeant "Mac" McGowan, of the United States Marine Corps, are rival for the love of Frances Schiller, but team up to hunt down "The Tiger Shark," a mad, scientific wizard who is holding Sergeant William Schiller, Frances' brother, a prisoner on a wild, jungle island in the Pacific.

The Eagle uses sky writing to make threats against a corporation. Nathan Gregory owns a travelling fairground and is thought to be the Eagle. Craig McCoy is a pilot who goes looking for the Eagle when Gregory turns up missing.

A mysterious master criminal known as The Voice plots with his gang to sabotage the Milesburg Oil Company, but the rightful heir has a secret army of her own to protect her rights.