In the magical land of Equestria, two alicorn sisters raise the Sun and the Moon every day to give the world a night and day cycle, basic for the survival of life. There are also two alicorns who rule over two very core aspects of life and harmony itself. Those are Love and Friendship. While not as ancient as the two sisters, all princesses are essential to the world's balance.
This balance is also sustained by the hard-working ponies, who make the seasons change and manage the weather to fit their needs, so everypony has enough food and water, and every animal is also attended to assure that any of them are caught in the changes of seasons.

But what about the planet itself? What about Mother Nature?
This is the question that Gaia asks when she arrives to this foreign world. After so much work her son persuaded her to take a long vacation in Equestria, saying that she needed one and assuring her that he would be in charge now, and she must take a break. But what can a several billion-year old alicorn possibly do to pass her time in this land?

(SimEarth/MLP Crossover)
(Timelife of Gaia's life 'till the start of the story)

Rarity, Twilight, and their friends are eating lunch, when AJ notices Twilight staring at a stallion. In the ensuing conversation, Twilight soon learns that her friends are all crazy ponies and have somehow gotten it into their heads that she is in a relationship with her mentor and idol Princess Celestia.

Star Power isn't Twilight Sparkle -- but she does play her on TV.

This story has an audio version!

Written for the December 5th Writeoff Contest. Prompt: "Behind closed doors."

Twilight Sparkle is a happy pony. With the help of her friends she defeated Tirek. She has a shiny new castle, the kingdom is safe, and she knows the reason behind her ascension. What more could a young princess want?

She is happy, she tells herself as she digs through the ruins of her home. She is so happy she can barely smell the ashes any more.

But in those ashes she finds something unexpected: a small porcelain vase, and with it a decade's worth of unspoken questions. A mystery hiding beneath her hooves, waiting to be put to rest.

Winner of the November Writeoff event.

Guess what Rarity just learned today!

For the past ten centuries, Princess Celestia ruled alone with a gentle touch, waiting for her sister to return from exile. Twilight Sparkle reunited her with Luna and banished Nightmare Moon away.

For the past ten centuries, Queen Solar Flare ruled alone with an iron hoof, accepting that she would never again see her sister after Nightmare's mysterious disappearance. Until one fateful day when she too was reunited with her sister, thought long dead.

But years later, when Luna discovers a tether of Nightmare Moon's magic in her mind, the veil is breached once more. What strange interactions will occur when the symmetry between these two worlds is broken?

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For antiquity, featured 10/29/14, 11/22/14, 12/18/14

Having spent nearly a year in Celestia's court and by her side, the first and only human in Equestria is in rapidly deteriorating health. And despite all of her power, Celestia finds herself unable to help him.

(Written for the Most Dangerous Game contest, and in far less time than I would have liked. AU tag because for purposes of this story I'm ignoring the mirror world where Equestria Girls took place—this Equestria has no knowledge of humans in any way.)

Ditzy Doo hesitates to eat a muffin, and then Twilight and her friends debate ethics. These events are related.

(Inspired by "Do You Want to Go Skateboards?" by Takarashi282, who I felt missed the more obvious crossover point. Both stories based on this youtube thing.)

This story is a sequel to The Dresden Fillies: False Masks

It's been a while since the girls have seen their good friend Harry Dresden. Discord escaped, Luna attended her first Nightmare Night, the Royal Wedding was crashed by hordes of changelings, and Pinkie Pie threw a statistically improbable number of parties. They tried inviting Dresden, but between his new job and new apprentice, he always claimed to be too busy. The solution was obvious; if he couldn't come to his friends, they needed to go visit him. Besides, they say Earth is lovely this time of year. What could go wrong?

Michelle Winters has had a rough life. And upon finding out that magic is real, she discovers just how interesting a transdimensional pen pal can be. And how life-saving they can become.

(Not gonna spoil the first chapter in the intro. :3 )

( This actually came onto me after listening to Pull Me Through by Aftermath. Amazing, powerful song.)