What is Zdrevkov

Zdrevkov is, initially, the mysterious town where Natalia's grandfather died, and where his personal effects (wallet, rings, etc.) are kept, much to the chagrin and annoyance of Natalia's grandmother. When Natalia discovers that it's within a short drive of Brejevina, she travels there to find those effects, and also discover more about the circumstances of her grandfather's death - specifically, whether she can determine if he spent his last hours in the company of the Deathless Man.