It could be that she visited a place that had a spirit, and it traveled home with her (that’s if she’d never experienced hauntings before). I know that’s happened to me before…I went to my mother’s to pick up some of my things before she lost her place. I hadn’t been there in months…close to a year. I was told that during that time she’d been drinking and doing drugs heavily, as well as generally going psychotic in my room. She was long gone (off to jail), and so my boyfriend and I decided to spend the night (it was about 3am by the time I’d gotten my things packed). We started to see a quarter-sized ball of light move about in the room…under and behind objects. I had black-out curtains, so I know it wasn’t a car light. The light disturbed me, so I insisted we leave for the night. The next evening, I came back with a roommate to collect what I’d been unable to carry the night before. The shadows moved, like small, emaciated things creeping in them, and we heard a constant rustling noise. We left quickly, and it seemed to us like a person was crouching on the roof. My roommate and myself began to hear a music box playing in the house at random times during the day…we thought it was one of her child’s toys, but there was no such toy. The location of the sound also seemed to shift. Sometimes as many as six people would hear the sound at a time. Cabinets also began to slam, and the shadowy figures of people would walk through the house around you when you were alone. I couldn’t take it, and I left. Nothing followed me out, this time. They stayed there with her.