Unlike his many books on bounty hunting and lawmen, the main character develops an agency specializing in security, protection and investigations. While working for his customers, he amasses a small fortune.
In a short time, he met a woman who became his friend, partner and eventually his lover. Together they built their financial empire. This led to buying a silver/gold mine and opening a retail emporium.
It has plenty of shooting, action, comedy, romance and detailed explanations involving underground mining as well as establishing a retail enterprise.