She wondered if there was a way to enter the house from the back. With as large as structure as it was, there must be some door she could force open. Orion Black was notoriously paranoid. Even his son didn't know all of his secrets. His children were encouraged to stay as far away from the other children in the area as possible. Filthy Muggles were not good enough for members of the Noble and Most Ancient House of Black. He would've done all that he could to discourage his children from sneaking out of back doors.