Mr Brown, an English teacher, said: "It was about 9.30pm on Sunday. We'd left the back door open as we often do in the summer. We heard a loud cry from Jessica's room and my wife dashed up and screamed at me to come upstairs. She was shouting that there was a cat in the room and then she said, 'No, it's a fox'. I ran upstairs, saw the fox and managed to chase it out.