The Cave

If you like cave stories, this one will satisfy...

"I was a little over half way through when something bizarre happened. I was laying there taking a brief break when I heard a sound deep within the cave. It was the faint, but distinct sound of rock sliding on rock. My blood froze in its veins. I couldn’t move. I just lay there straining to hear the sound again. Nothing. I quickly began to scoot toward the exit. I didn’t mention the sound to B, but I did recall one of our earlier trips when B said he heard the same thing."
http://www.storylog.com/mystery-cave/