The main antagonist who framed Joan Stanton for murder and is responsible for Jim Madden's death. He captures Larry and Joan, plans to kill Larry and flee to Mexico, but is defeated in the climax.
Frank Sanderson manipulates the evidence against Joan Stanton and becomes her principal antagonist.
The plot states that Frank Sanderson sets Joan Stanton up for the murder of another rancher and for the death of a Texas Ranger. He later captures her...
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