Now, I doubt that one of the kids was intending to cast a true spell on the other kid, but this proves the problem with the Harry Potter books, which is that these books normalize the occult and can serve to enkindle in children an interest in the occult.
Any doubters can go to Amazon, search on ouija board, and read the reviews by children.
Hmm, I'd be more interested if one of them HAD worked. Wonder just which one the kid was trying out.