John A. Milton

Robert Gordon wants Donald, his son, to marry Sir Ralph Fisher's sister, but Donald loves Alice, a working-class girl, and weds her in secret.

French pirate Jean Lafitte rescues a girl and joins the War of 1812.

In attempting to develop a chemical which would make a person super-intelligent, Dr. Montrose fails and the subjects of his experiments metamorphose into hideous monsters who band together and prey on humans. With the police stymied, a young detective attempts to track down the leader of the group of killers, known only to have a small crimson stain in one eye.