Book Four in the series Jacob Davison must take up the mantle of the Judge of new Orleans. With the help of the New Orleans branch of The Black Files, The young Judge must stop the local Mermaids from releasing a virus on New Orleans and the world. Evangeline Legnon, a mermaid, must face a decision to follow through with her fathers business, of carve her own way in this world. The Judges must also stop Samuel , the fallen angel from expanding his territory.