Oracle, please tell us the rest of the story!! I'm wondering why they didn't burn the photo, seeing as it was intent on finding them.
I've heard so many stories of demons doing this and that, and 'being right outside the house, but they won't come inside as the angels are here'. I've known people who burn books because they think they're possessed, or people who wake during the night with a creepy feeling and then put outside the last thing that came into the house.
I remember a girl I knew swore blind that she saw a tissue float out of a box beside her. She thought she'd imagined it, so waited and again it happened. It was inside the house, no wind about. She quickly threw the box outside!