Creepy Caving Story

This is one of the creepiest stories I have ever read. It's a true story about a couple of guys that discover a new entrance to a new tunnel deep in a cave, and have to squeeze through a small tube to get to it. Strange things start happening. I kept having to stop reading to keep from passing out during the tight squeeze parts... See if you can make it all the way through with out stopping.

Via Reddit.com
(Click the pic to try to read it!)