Writing Prompt: The Grotto

Sometimes the most sacred of places can be the spookiest of places.  For example, the grotto in an Atlanta area cemetery is in a hidden on the backside of  hill.  It's a place that not many people go.  For Easter it is the site of sunrise ceremonies.  But, during the month of October, it isn't a place I'd want to visit.

For today's writing prompt, spin us a short tale of something that happened in -

The Grotto