"You may be right, my Lord," Erik said slowly. "I have studied cases in which magical folk have been kept from their own magic—but these cases are extremely rare. In Azkaban, one’s powers are only dulled through the wards embedded into the prison so that they still have it, but it affects nothing. In the case of a child who cannot control it, it will manifest powerfully during emotional outbursts. I have never heard of a case that has lasted for several years under these conditions. It could be that her power has grown, but I would hesitate to make that claim considering there is no research on that to convincingly explain it. It is more likely that her body has become accustomed to operating without magic, and has shut down in a sort of shock at having it all back so suddenly." 