For Tony, his plans, upon arrival in the city of Rome, was to use the clues he had received in the mail several months prior, and see where they might lead. For Isabella, her desire to clear an old relative's name of a dastardly deed motivated her to seek help from a soothsayer. Soon, she was circling into Tony's orbit, and together, their quest began, leading them to events of which they could never dream. Along the way, their physical attraction for one another grows immensely. Both are unaware of what is propelling them toward this deepening relationship.

Their search takes them to Castel Sant'Angelo where they shockingly discover a secret long buried. Their quest becomes both confusing and extremely complicated. And only the ghost of the Count of Cagliostro, their benefactor pulling all the strings, can point them in the right direction of where to go next.

As their journey continues to the north and through the streets of Paris, Tony and Bella are soon immersed in the historical relevance of what they have in their possession and the historical outcomes it fostered. There, they discover the unfortunate demise of nobility during the French Revolution and a clue as to where they must go to complete this final task, the return of a most precious item found in Castel Sant'Angelo. They will be forced to make one more intercontinental stop on their journey to complete this remarkable quest.