Cay vows revenge and for years has tried to learn the Trader's identity. Finally she believes she has traced him to Mazatian, Mexico. She travels there with George Hodd, a detective hired to locate the man whom she believes will lead her to the Trader. She is determined to kill the Trader when she finds him. The trail is a torturous one with much misdirection and lots of with a suspenseful climax and a surprising ending.

This is a reissue of an earlier hard boiled mystery. It is a simple story of a determined woman in search of revenge. The writing is clear-cut and uncluttered with most attention given to the action and characters. This is a typical example of the mysteries written during in that time.