Before sending Galya to Chernokamensk, the grandmother warned her granddaughter that a difficult test awaited her. After all, silver blood flows in the girl’s veins, and the island for her is not only a source of strength, but also a place that tests her strength. The expectations were fully justified, especially since Galka had to take care of both herself and the orphans who found themselves at the mercy of the cruel headmistress of the orphanage located in the old estate. The winter that year was harsh, and the quiet provincial town was alarmed by inexplicably cruel murders and a new, hitherto unprecedented invasion of wolves. “Trouble is coming,” the old-timers repeated, and they turned out to be right.