As everyone knows, Cozy Glow was defeated by the combined forces of Equestria and beyond, and subsequently turned to stone for her crimes.

Except she wasn’t. Someone else was.

Cozy Glow, Tirek, Chrysalis, all are names feared by many. However, after their defeat, memories of them have started to fade.

Not Twilight's though, no she's thought of the incident every day since she ascended to the throne, and today she had a very disquieting thought.

"Didn't Discord say he could see while like that? What about them?"

So she asked and so he answered

Cozy Glow prepares to carry out her plan to steal all magic to become the Empress of Friendship. What is her plan? What are the motives? Will anyone stop her? You will learn about everything in this story!

P.S. Fanfic added to Starlight Glimmer and Luna groups as they is also the main character with an important role in the story.

The idea for the story: "A Hearth's Warming Tail".
Fanfic on Russian-language resources:
https://ficbook.net/readfic/018c9f79-ab4a-7f44-925d-d0490d76fad3
https://ponyfiction.org/story/17527/
Translation for Fimfiction by:
https://www.fimfiction.net/user/535037/oranzinispegasas

Stink Beatle, or drone 007, was a changeling of the Badlands Hive! Well, was, you see, his Queen is an idiot and a bit of a psycho. So instead of partaking in a stupid idea, like invading the capital of the strongest nation that Equus has ever seen, he left the Hive to live amongst ponies in peace… Yeah no, that didn’t happen either. He somehow winds up in Canterlot shortly after the invasion… In the castle, under a Princess’s wing.

Doesn’t this just put a hole in your leg?

An older Cozy Glow at large disguises herself as a different pony and joins the Royal Guard. This is one day of many as she protects Flurry Heart and tries to learn her enemies. She's very grumpy.

One part of a prequel to Dawn Adopted
(You don't need to read that first. This could be standalone)
Warning: Mostly slice of life, not moving the story, very minimal spoilers for the above, present tense narration

In the shadow of political turmoil, riots, and inter-tribal conflict, Equestria cannot afford another crisis. When a legal snarl over a funeral explodes into a scandal, there may be a chance to set things right.

Now, armed with total faith in the power of friendship and harmony, Twilight Sparkle arrives in Cloudsdale to talk down a fringe movement of radical young Pegasi.
It would be a lot easier if their leader hadn't been petrified for fifty years.

Takes place between The Last Problem and MLP: A New Generation.

Winner of Imposing Sovereigns IV, with the prompt Twilight Sparkle/Persistence

In order to obtain the power to control Equestria, Cozy Glow must kill three primordial demons and eat their hearts. It's an unsavory business. Better hope she brings hot sauce.

A story about power and those who suffer it.

This story is a sequel to Flurry Heart's Story: Apple Family Memories

Everypony is thrown into panic when Cozy Glow shows up as an alicorn once again, wearing the Alicorn Amulet and accompanied by her parents (who are also somehow alicorns). Once she gets her revenge on Celestia, Luna, and Discord for turning her into stone, there is little chance of defeating Cozy with the amulet on. Flurry and her friends worry over what Cozy has planned, but a quick visit from Starswirl the Bearded changes everything when he shows Flurry an artifact that may be able to counteract the amulet. Can Flurry stop Cozy from going mad and taking over all of Equestria? And just who are these mysterious parents of Cozy's? Surely they can't really be alicorns. Are they even her real parents for that matter? After all, no loving mother or father would rear their daughter to do such a thing!

Inspired by the official show, this is part of a fan-made sequel series I created called "Flurry Heart's Story", which documents the adventures of Flurry Heart as she makes friends and faces new and familiar villains, some of which may still be redeemable.

Next story: Let My Ponies Go!

Flurry Heart's Story and its author are in no way associated with Hasbro or any of the creative team behind My Little Pony: Friendship is Magic. This series is entirely fan-made and is created in honor of the official show. No copyright infringement is intended or encouraged. Please support the official release.

Going to the annual fair was supposed to be a reward for her class and teachers, but when a sneaky pegusus filly breaks free from custody its anything but a relaxing trip.

(A commissioned story)

It has been one week since the faithful battle against the terrible trio. Our heroes decide to have a private party as a chance to get together, where they eventually start talking about Cozy Glow. Lamenting the fact that they could not rehabilitate her, they come up with a more... fitting punishment for the villainous young filly.

Contains spanking of a minor.