My eldest grandson (11) was worrying about photos of 'demons' and unexplained holes appearing somewhere. My daughter came up with one of the best bits of education for him I have seen. Abridged version for clarity of message -

I'm a huge fan of finding weird stories and photos on the internet and trying to find the origin of them!
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I recommend you get in to internet sleuthing (trying to find things out!) of alleged paranormal photos as well, you'd be very good at it and it might help put anxieties to rest!