Summary
Caty and Tyler are friends who both go to the same college in Missouri. When the two of them started caving together, it was enjoyable seeing all of the different formations and critters that they had to offer. There may have been some tight squeezes, but nothing would stop them from spending time on this hobby together.
That is, until one day when they decide to go caving to blow off steam after a week crammed full of exams.
When they find a cave off of the beaten path that they both feel compelled to explore, everything goes off of the rails. Nothing they brought seems to prepare them for the venture they undertake, and there seems to be something strange down there with them...