Originally, Vitezoslav found the book and phoned Edgar, who didn't believe the vampire had found the actual book of Fuaran. But Kostya wasn't convinced the book was a fake and joined Vitezoslav at the hut. The Inquisitor wanted to see if the book actually worked and tried it on Kostya, using his cocktail of a blood mixture made from 12 donors, increasing his powers exponentially, after which Kostya challenged Vitezoslav to a vampire duel. The loser of such a duel is ashed.