Frank Bull

James “Brick” Davis, a struggling attorney, owes his education to a mobster, but always has refused to get involved with the underworld. When a friend of his is gunned down by a notorious criminal, Brick decides to abandon the exercise of the law and join the Department of Justice to capture the murderer.

Inspector Steve Trent tracks the stolen Cortez emerald, last pilfered by a murdered gangster.

Leslie is being chased by the gangsters, the police and the insurance investigators. He is on the run. Falsely accused of a murder, he embarks upon a life-and-death journey to save his family.

A radio commentator named Perry Travis fancies himself a brilliant amateur detective. The cops wish he’d stick to his microphone and let them do the detecting. This proves impossible when a famed scientist is murdered in Perry’s studio, right in the middle of the interview. All evidence points to Perry, and he sets out to clear his name before the Shadow-like villain roaming the hallways of the radio station gets away with murder.

A struggling young engineer, Bob Sanderson, refuses to marry the very-rich Edith Stuart until he can support her on his own earnings. He goes to work for her father as a messenger in the telegraph business, and, via his engineering skills, discovers a plot to kidnap Edith.