Church Play Apparition Ghost Picture

Lil sent us this intriguing ghost picture of what looks like an apparition. We of course wonder if a young child was rushing down the aisle when this photograph was taken. What is so amazing is that the people in both pictures are in almost exactly the same position in both photographs (which confirms that Lil indeed quickly
snapped these photos right after the other). You decide:

"It is of my little girl's church play. I was snapping off pictures so fast, one after another. You can see from the pictures that there isn't much difference between the two EXCEPT for the blue apparition clearly seen in the bottom picture."