you wandered troth The Facility, collecting scrap and other goods, then you started to hear like a fast clicking noise, you walked that direction to see what is that. After some walking you saw two white eyes in the darkness. They walked in the light and showed his real body. It was bracken. His Tendrilis maked that clicking noise. If you run he will catch you and he will snap your neck but if you dont look at him you will be fine