"We talked about that in the story as well, right...?! Kumasawa baa-chan, for example. She said she followed right after you and headed down to the boiler room, but we can't know for sure whether that was a lie or not. For all we know, she might've entered the boiler room with you and caught you by surprise! Or maybe, when you stepped into the boiler room, you activated some kind of trap, one that might've been set up to hit you with one of those icepicks."