There is nothing more beautiful than love letters - and nothing worse if they fall into the hands of a clever blackmailer. What if the author of the messages is the Emperor himself? Publicity threatens Russia with an international scandal... Secret agent Amalia is tasked with returning them at any cost. Having taken up this matter, she did not even suspect that not only the secret correspondence between the emperor and his beloved was valuable, but also the box in which it was kept. Both are being hunted by many adventurers, among whom is the prince of Parisian thieves himself...