Original Sin — Susan Hart

EROTIC ROMANCE: Mature Audience

Born in Germany, Peter von Rabenhorst decides to take his wife, FBI agent Lily Foxworthy, on a trip to his home country so he can show her a few of the wonderful scenic treasures, as well as the family castle.

Right after they arrive, they get a visit from the local Interpol agent - charismatic and brilliant Dieter Wolf. Wolf is seeking help from Lily because of her FBI status, as there's been many cases across the world of people, either in groups or singly, spontaneously exploding.

Peter and Lily are drawn deeper into Wolf's sick world when they learn about an organization he belongs to, the Order of the Black Sun, and his goals for world domination. Lily asks for help from her partner in the states, Jake, and after he arrives the case is turned over to him.

This leads to an emotional climax to the book and a change which will affect Lily forever.