It'd be far too much work for me to change it to third person; seeing as I've already written three more chapters to the story. Not to burst your bubble or anything, but the story is about Lily - of course she's going to live. That's the point.
<w<;
Okay, I'm sure there is some Saw fanfiction writer who decided to let their character die just to change things up. I wasn't sure whether you were going to do that or not.
[Edit] Also, the story can still be about Lily in 3rd person, it's called 3rd person limited.
Once the jar has been filled with a litre or so of blood
It would have sounded better if you said exactly how much blood had to be spilled into the jar, instead of saying a litre or so.
I get what you're saying, but here's the thing - The story is somewhat AU, I guess you could say. Like, John is just beginning his work with her. He hasn't quite perfected every aspect of his traps quite yet, y'know what I mean? So, it's sort of a guesstimate on his part.