North of Italy, the von Kettens dispute the forces of the Episcopate of Trent. Herr Ketten seeks marriage in a distant country, Portugal. After their honeymoon journey back home, Ketten leaves again for the war. Eleven years elapsed… Rumours are running about the presence of that ‘foreigner’ in the castle. Some say she’s a heretic. Until one day, the Bishop of Trento ends up dying and, with the signature of peace, falls the background of von Ketten’s life. Will the Portuguese win, where death seems to be moving in?

Raimund Gregorius, having saved a beautiful Portuguese woman from leaping to her death, stumbles upon a mesmerizing book by a Portuguese author, which compels him to suddenly abandon the boring life he has led for years and to embark on an enthralling adventure. In search of the author, Gregorius acts as detective, pulling together pieces of a puzzle that involves political and emotional intrigue and the highest possible stakes. His voyage is one that transcends time and space, delving into the realms of history, medicine and love, all in search of true meaning to his life.