Cozy Glow grew up somewhat differently from other fillies.
For one, she wasn't allowed to go outside. Father always said that it might give her the wrong idea; that it might give her unneeded hope.
Father said it would distract her from their goal.
Father said a lot of things, and Cozy knew that she had to obey anything and everything he said; because terrible things always happened when she didn't.
Father always said that she was his ticket to the kind of life he'd always deserved; that her training would make her a princess one day. That it was her destiny.
That might've been the reason why she drove a knife into his bleeding, miserable heart while he slept one night. Or maybe it was why she lit a stack of books on fire and didn't look back as the house burnt to the ground.
Maybe it was her destiny, or maybe she just got tired of watching that disgusting stallion live.
The why of it wasn't really important, though.
She was going to be a princess.
Author's Note
Hey hey, it's me! Taking yet more time away from my claim to lesser horse fame to bring you more experimentation! 
unless i haven't published that other story i'm working on, then this will be my first experimentation
Yeah, so, about this story. Cozy Glow is just about my favorite villain in the show, and I've wanted to write stuff about her since before I started writing. If you read all my work, then you'll know I already wrote a quick little thing for a contest 'bout Cozy, but that was just a test!
This is my real Cozy Glow story! Filled with death, tragedy, and more un-childlike actions than is recommended for even the most heartless of children!
Except for Cozy. 
I don't really know where I'm gonna take this or how long it's gonna be; I just know that I wanna write some stuff about Cozy manipulating and maybe murdering ponies in their sleep! Because I'm a sick fuck who thinks that's the coolest!
The following material contains the most cheesy, grimdark, edgy writing I'll be able to think of! Unless I talk myself out of that due to literary integrity, but hopefully I'll lose that sometime soon!
good
Damn thats tough. The knife part was gruesome but i hope the one he drove through them was a tramontina knife because I bought one from Amazon after reading a review on tramontina knives on smokekitchen. Anyways you have to write a book on this story.
Any chance this will be continued?
11292136
Huh. Never thought I'd see the day. Demand for this story, of all things.
Well, I pretty much wrote this as a proof of concept and to test whether I had the stones to write a Cozy story, so I didn't really have many goals in mind for taking it anywhere. It could honestly be labeled a one-shot, and it's only unfinished because I enjoy the thought of picking it back up someday.
I'm really invested in my newest story right now, and I'm working up the confidence to keep writing my main story meanwhile, so it's not entirely likely I'll come back to this anytime soon. I do still really love Cozy Glow, and I love the little premise I came up with here, so I'm sure I'll come back to it... someday?
11292156
Perfectly understandable, and I agree, it could be a stand-alone. Still, it's so well-written and intriguing that one can't help but have an appetite for more.
In any case, well done!