Following the events of The Boundary Beyond, you and your team of investigators head deep into the jungles of southern Mexico in search of an ancient, forgotten cavern. After several days of trekking through the jungle, you find what you believe to be the entrance of the cave, but something is not right. Six pillars surround the cavern, carved with strange symbols. Are they a warning? A lock? You must investigate this further, but time is running short. Your supplies are already starting to run low and countless eyes watch you from the shadows of the trees. What secrets are they trying to protect?