In Curse Of Strahd, Bella took Freek Varzaru from his parents, who could not afford to pay for further pastries in coin. She brought the boy to the edge of town, and noticed that The Pack was following her; she informed the guard she was worried about these outsiders, who then proceeded to bar the adventurers from following her. She managed to take Freek to Old Bonegrinder the next day and eventually turn him into a Dream Pastry.
Weeks later, Bella purchased Tessa Nicoleva from her mother in exchange for Dream Pastry; this caught the attentions of The Pack, as they had grown close to the girl at Saint Andral's Orphanage. They followed her trail using the help of the Keepers of the Feather, whos spy Laszlo Lazarescu had been keeping tabs on Old Bonegrinder. They raided the mill and Bella was smote by the Paladin Ghalwin Forrester.
Dying blinded from his axe's radiant light, her soul was consumed by Ghalwin's patron, Yrrga, and the paladin burned her body to ensure she could never reanimate.