Принцесса грез

Having cruelly cracked down on two secret societies, Nicholas I created a new one - the Corps of Officers for Special Assignments. This sensational discovery by the St. Petersburg archivist Panteleimon Betsky formed the basis of a series of books about graduates of the world's first school that trained specialists in the invisible war. In it, the best teachers in Europe revealed to their pupils the secrets of international politics, fencing, cryptography, flirting and female psychology. Only one thing was required of the graduates: not to spare their lives in the service of Russia.
This time Lieutenant Konstantin Yarov has to do the impossible...