She had dismissed Greyback back to the small room he occupied in the dungeons, which he was forbidden to leave except when given permission. The beast had glowered and sulked at not being allowed to bring Cho with him, but Hermione had no intention of exposing the girl to him. Instead, she had been left locked in a bedroom with Umbridge to watch over her until she awoke. Then she would be forced to drink a Forgetfulness Potion and turned loose.