Something terrible and incomprehensible was happening in the Monastery of the Immaculate Conception. Murders of nuns, disappearances of shrines... Police Commissioners Elke and Nicoletta could not understand what was happening in this provincial town. Until they discovered the dug up grave of jeweler Alvaro Mendoza and found his letter to his descendants. The traces led to the 19th century, to the brilliant and formidable times of the reign of Emperor Silvio the First... During the rebellion, Silvio instructed Mendoza to hide the imperial treasures. The jeweler hoped that his niece Caroline, the mother of the prince, Silvio’s heir, would find them, but her traces were lost in the whirlwind of troubled times. Mendoza left in his letter only a charade with which one can find the way to the treasure. And to solve it, you need monastery shrines. And now, a century and a half later, someone started hunting them...