My great-grandfather used to tell me, "Don't chase after cats because you'll only end up with a black hole in your head." I never quite understood his advice until one Christmas, I was gardening with my best friend Jodie. All of a sudden, we found an underground tunnel! It was crispy and spooky sounds came from deep within. Jodie saw something interesting inside, jumped in, and I never saw her again. Great-granddaddy was right!