Twilight now has full reigns over ruling Equestria. Celestia is left with very little to do and the boredom is starting to get to her. Just as she starts to wonder what she will be doing for the rest of an eternity Discord shows up. He has an idea, she should rule for just one more day and in addition, they should switch places. That's right Discord rules as Celestia and Celestia is now Discord, whoever breaks character first looses and has to serve the others every whim.

Time is a neutral party. It takes no sides, only proceeding without a care for those caught in its trap. That is how it should be...
But not all traps are foolproof.

When a pony seeking the Night Princess's counsel intervenes during an assassination attempt, Luna knew there was more to this stallion than met the eye.
However, even her expectations had limits. That, Luna discovered, was a mistake.

One question troubles her thoughts as a new problem presents itself in the form of this stallion; how does a heart and mind cope when one escapes the trap of time? What happens to a good heart when it is worn away, year after year, all stemming from a single mistake, no matter how good the intentions?

Equestria Daily seal of approval: https://www.equestriadaily.com/2019/11/fanfiction-timeless.html

Takes place during/after Season 9.
Sequel: Sunspots

This story is a sequel to Timeless

(This story is a direct sequel and picks up right after Timeless ends. If you haven't read the previous story, ye be warned for confusion and spoilers!)

The sun is eternal, distant, powerful, timeless, and out of reach of any mortal creature. Like the entity she controls Celestia has curated such a view of herself over a thousand years. Having run the nation for over a millennium the Solar Princess is, to many, a revered and nigh-unapproachable figure.

However when you wear a mask for too long, it is said, you can forget who you are underneath.

While attempting to maintain a semblance of government during a devastating plague-like outbreak Celestia herself falls ill and she is all too thankful when an expert on the disease arrives to help. What the Alicorn didn't expect to find however, was how much she needed a friend more than any curative potion. Yet something about this doctor seems oddly unnatural and familiar.

As the continued efforts from a dangerous foe strive to destroy everything the Solar Princess holds dear, friendships may prove to be more valuable than any blade.

Takes place during/after Season 9
Spoilers for Timeless, Prison of Ice with Silver Keys

Art used with permission, created by the talented Yakovlev-Vad *Click here for Link*

Mathew Reese was just your average guy. He lived in a small town with his adoptive father, had a circle of friends, loved the natural beauty of the world, and had just started to take his first steps into becoming an independent.

All of that changed the day that two powerful beings combined their magic to seal away a great evil. Now Mathew is trapped on Equus as the sole human the lands have ever encountered. Everything he’s ever known has become null and void as he tries to make sense of his new life.

Follow Mathew on his journey for answers through the land of Equestria and learn the truth behind one of its most notorious evils… Nightmare Moon.

This story now has a sequel. Continue this exciting tale in Shadows Within the Heart!

Shadows Within the Light was my very first fic. Expect a degree of amateur writing. I have put this story on my list to rework it at a later date so that I can take what I've learned to make this story better. Until then, I hope you enjoy my little tale because it has been said that it's a hidden gem.

Be sure to leave constructive criticism as well. I welcome it and it will help me to improve.

Nightmare Moon has been reunited with her daughter, Luna. Though rocky at first, the relationship between the dark goddess and the Alicorn Princesses has strengthened over time. They have somehow overcome their shaky histories and put the past behind them for a brighter future... but all is not well in the cosmos. An old god, one who Nightmare knows all too well, has returned.

With Mathew trapped within a crystal coffin, it all falls to the ponies of Equestria to find a way to defeat their greatest enemy yet.

This is the sequel to Shadows Within the Light. Get ready for more action, romance, magical battles, and awkward pony/human kisses!

A special thank you goes out to everyone who helped me improve my writing by leaving their input for Shadows Within the Light. Without you, I never would have gotten this far. Thank you for all the criticism and the support. Now, enjoy the sequel everyone!

It has been twelve years since Twilight Sparkle was shrunk to 1/100 of her original mass to minimize the damage caused by her uncontrollable surges. Twelve years of struggles, challenges and hard work as Princess Celestia’s student, in which the tiny mare found the joy and excitement of facing everyday adventures of a huge world.

One year before Nightmare Moon’s return, Princess Celestia sends her tiny student to learn about pegasus magic from professionals, the Wonderbolts themselves. Much to the princess’s pleasant surprise, Twilight forms strong bonds of friendship during her one month of studies with Soarin' and Spitfire while the Captain of the Wonderbolts, Impressed by Twilight’s talent in magical surgery after the crystal mountain incident, offer her a job as one of the Wonderbolts’ medics.

While Twilight accepts the offer with Celestia’s blessing, provided that it would not last longer than half a year, the other Wonderbolts are not too happy with this idea. Will Twilight manage to win their trust, and what kind of adventures and challenges await her so far away from her home in Canterlot castle? Only time will tell.

This is a sidestory that takes place in "Celestia's Tiny Student" between chapter 20 - "Camping Trip" and chapter 21 - "Birthday Party."

Twilight is known for many things: being the shrunken student of Princess Celestia, an adventurer, powerful magic user, avid learner and reader, and more. But one thing she's never been is a prankster. When she learns about the holiday known as "April Foals Day" she decides to take part in the holiday and prank her closest friends and family for a few good laughs.
****************************************************************************************************************************
This story is a gift to my friend CommanderX5, the writer of Celestia's Tiny Student. Note that this is in canon with his story and takes place after Twilight's duel with Celestia, but before she meets the Wonderbolts.

Twilight Sparkle isn't feeling too well, and it is up to Princess Celestia to nurse her back to health. It would be a simple task, if not for the fact that her student was thirteen years old with an uncontrollable amount of magic.

To make matters worse, six years ago Celestia was forced to shrink Twilight to 1/100th of her size so that her untamed magic wouldn't be a threat to Equestria. She would have to remain tiny until she would learn how to control her enormous power.

But surely a two millenia old alicorn with enough magic to destroy a small mountain can handle her littlest, fragile and most magical subject... right... right?

This sidestory takes place between chapters 4 and 5 in Celestia's Tiny Student.

Special thanks for pre-reading to ambion, I took some inspiration from his story called melt, worth checking it out for additional dose of cuteness.
List of editors, thanks for fixing grammar guys, you did a great job:
Solstice+Shimmer and Word Worthy

This story is a sequel to Celestia's Tiny Student

(Title changed from "Ponyville's Tiny Librarian" for reason pointed in this blog )

Twilight Sparkle is a one-kilogram pony the size of a large rat, shrunken by Princess Celestia following her entrance exam to the Celestia’s School for Gifted Unicorns to ensure that her power surges would not pose a danger to the ponies around her.

She’s spent thirteen years full of hard training at her new size, facing the life-threatening experiences that came with living in a world of giants. To survive those thirteen years of hardship and joy, of learning and adventure, and of pride and humility, Twilight has challenged herself to be stronger, to overcome any obstacle.

Now that tiny Twilight is on her way to Ponyville to oversee the preparations for the Summer Sun Celebration, how well will this miniature mare fare outside of the confines of the castle? How will the other Element Bearers react to her? How will Nightmare Moon react to the tiny unicorn? Is Twiny prepared to face Ponyville, and, more importantly, is Ponyville prepared to face her?

Credits:
Art cover - kc day

Top editors: (editing and rewritting for months, hope quality is to your liking).
Kydois
Georg

Nightmare Moon's sentences editor:
Bahatumay

Applejack accent editor:
Crimson Star (Chapter 1 - Applejack)
Rebel Brony
The Notebook is grounded

Pinkie sentence's editor:
Plump it UP

Other editors:
Hereward
tana1100
Lab (small editing from prologue to chapter 4)

Pre-reader:
Rated Ponystar

To celebrate the release of this sequel, I created a group called “Twinyverse” for all fans of this story where you can talk about it and track all side stories with ease.
The Twinyverse Group

This story is a sequel to Nightmare Moon's Tiny Adversary

Twilight Sparkle is a one-kilogram pony, shrunken by Princess Celestia following her entrance exam to the Celestia’s School for Gifted Unicorns to ensure that her power surges would not pose a danger to the ponies around her.

She’s spent thirteen years full of hard training at her new size, facing the life-threatening experiences that came with living in a world of giants. To survive those thirteen years of hardship and joy, of learning and adventure, and of pride and humility, Twilight has challenged herself to become stronger, to overcome any obstacle.

After defeating Nightmare Moon with the help of her friends and the princesses, Twilight is ready to start a new chapter of her life in Ponyville. What kind of secrets and surprises await the little but powerful unicorn? Will this eventful town survive such an unpredictable citizen?

List of editors:
Top editors:
Nagel+Navari
Kydois
Georg
Plainoasis

Zecora lines editor:
Discord_Lexia

Luna lines editor: (helped a lot with old Equestiran)
bahatumay
Rated+Ponystar

Pre-reader (pointing out issues and giving suggestions how to improve the story):
Skydrake
Rated+Ponystar

Seconary editors:
lucia+merinero
Solstice+Shimmer
HeartLinda
tana1100
Pump+It+Up - some of Pinkie Pie's setences

If I forgot to add someone due to a long time that has passed, please PM me.