A few style comments:
First, the first sentence is a run on, or at least is a pretend run on. The comma so early in the sentence infers to the reader that the rest of the sentence is about to end. I think the best way to solve this awkward problem is to add a comma between "others" and "that."
I've never in my life seen a paragraph this long. Perhaps add a break where the second speaker begins, or maybe even one after you set up the setting.
QUOTE
"Don't worry, my dear, I will teach you a lesson about such things." said
Period should be a comma.
QUOTE
Then she heard footsteps, which escalated into running.
Starting a sentence with "then" is sort of low writing level-ish. The sentence before that is just strange; rarely do I ever see questions asked in prose unless it is in an essay, or is accompanied by "she thought," etc.
You mention Lauren's name once, and then resolve to replace it with "she/her." I'd change a few of those, so that it isn't so repetitive.
QUOTE
Letting out a blood-curdling scream, she started running as fast as she could towards the car, the little point of hope and safety, where she could escape from these haunting spirits. She finally approaches the car, after what seemed to be like hours of running from the voices, taunting her and becoming more beastly and evil every second she heard them speak.
Ahk! You changed from past tense to present tense.
Is there a synonym you can use to replace the word "ignition" the first time you use it? Such as 'she went to start her car' or something like that; it will add more effect to the last sentence.
Over all, a very interesting read. You explained and developed Lauren very well, and although you did not explain the second speaker, I think that added to the effect.