For this photo challenge I chose a favorite 'accidental' picture of mine. I took this picture two summers ago while experimenting with long exposures. My son Art was about to set off some fireworks and I was testing the settings before hand so that I could get his silhouette against the flare. Unfortunately Art is very bashful in front of the camera and when he became aware of me standing behind him, he moved out of range. I didn't get the shot I wanted, but this ghostly image more than made up for it.
You can find other scary images here: