the house was in north London. A married couple and their four children lived there. Strange things began to happen in September 1977 when their 11-year-old daughter first heard an odd noise in her bedroom. it sounded like someone pushing something heavy on the floor. when she looked up and saw the heavy desk at one side of the room moving by itself, the young girl took fright and ran out. her parents accompanied her back and found the desk out of its usual position. they became alarmed, for they knew their daughter could not have moved the desk herself. But they kept calm, so as not to frighten her further.