Hollow

Sirius black has 2 children Rue Black and Joel Black. when Sirius went to azkaban after his wife's death the twins were put into an orphanage they had the worst time until they were adopted by a man by the name oh Igor karkarof who so happened to the. headmaster at the Durmstrang academy of magic these particular twins were natural born warewolves because their mother was a warewolf but they were also animangus so it took more than a mere full moon to cause their demise. one particular full moon Rue had a setback and did something awful and for that they were expelled from Durmstrang academy but when they were on the brink of having nothing a professor by the name of Dumbledore took them in and allowed them to begin their third year and Hogwarts school of witchcraft and wizardry