The Div of the Secret Chancellery

How did the divs live before, in the 18th century? And what influenced the formation of the personality and worldview of Vladimir, one of the most mysterious divs in the service of the Empire?
Wizard of the Secret Chancellery Afanasy Repin, having lost his partner-div, decides to take a risk and take for training a daring and stubborn "devil", with whom everyone refuses to work.
Vladimir, even on the verge of death, does not want to submit to the wizards whom he does not respect, but Afanasy managed to see in him what others did not notice: dignity, decency, intelligence, and loyalty.

Together they are to uncover several unusual cases.
Heroes from the 20th century will also appear: Margarita will take on investigating her own case, while Arkadiy Averin is about to take a step towards research that will change the understanding of the world of divs.