Colorful Energy Ghost Picture

Lauren sent us this ghost picture and comments. We know that flash settings can sometimes create anomalies similar to this, but we have yet to see one in a rainbow effect. What caused this? Not sure...

"I took this picture of my two friends at 1am...the 1/1/2007. It looks like coloured ectoplasm. On the left, I squared a picture that looks like a ghost looking at you and an arm thats pointed down."