The Case of the Fox-Shapeshifters

Alternative history. Our days. In the boundless Ordus, a state dearly loved by all its peoples, various religious traditions and high-tech science coexist equally.
This time, the valiant protectors of humanity and friends Bagatur Lobo and Bogdan Ouyantsev-Syu, having completed the investigation into the boyars' suicides ("The Case of Igor's Host"), are acting separately. Rather, Bogdan is asking for a vacation and goes to the Solovetsky Islands: to atone for sins through labor and prayer, to mourn for his departed wife Zhanna, and to sleep in a coffin. Meanwhile, Bag, who remains in the field, forced to come to terms with the year-long mourning of his fiancée Stasya, is trying, at Interpol's request, to privately establish what and how the incredibly popular medicine for enhancing male potency "Fox Charms" is made. And a strange thing, the investigation is led by the valiant lunchjun in Solovki, where his friend Bogdan finds himself at the center of downright mystical events involving real fox-shapeshifters…
Time accelerates, events rapidly follow one another, and finally, joining forces, the noble detectives uncover a chilling truth about great love and great betrayal.