Would anyone be able to explain something for me? When it says for you to remember to check the vents, that's for the shark-girl right? If so, then what alerts you that your window of time is coming to an end? I've checked the vents above me but nothing seems changed, then I die a bit later to the shark-girl. Am I doing something wrong or do I just have bad timing? Cause I can see the last one being the issue