Pandinus Imperator (You can call him Pan, he won't mind) is knocked back in time during the Canterlot Invasion, and accidentally kills King Sombra on arrival. Instead of being executed, the changeling is surprised to find himself being hailed as a hero, and is promptly put on the throne as the new monarch, the Crystal Emperor. However, Pan now faces a great many problems, among them Celestia and Luna, who seem certain that the changeling is secretly up to no good, as well as several political factions secretly plotting to undermine his reign. There's also the tiny problem of the constant snowstorm that threatens to cut the city off from the outside world permanently.
The Crystal Ponies need a hero now more than ever before. Why did they get a changeling instead?

We Has A TvTropes.

While not truly a part of Bucking Nonsense's Changeling-Verse, the same rules regarding changeling abilities and society apply.

Cover image provided by gabapple, used with permission.

Princess Celestia is in your bed, and you don't know why: what do?

Cute, funny, and short. Have fun reading!

Proofreading by RaylanKrios.
Now with audio reading by CaptainBron3y
Second audio reading by MeloncholyIguana.

Based on this story:
Princess Celestia is (still) in your Bed
Princess Celestia Has Stolen All Your Bed Sheets
Drunk CelestAI Is In Your Bed
Fimfic Authors Are In Your Bed
Princess Celestia is in Your Washing Machine

Captain Rainbow Dash of the Wonderbolts.
Has a nice ring to it, doesn’t it?
Certainly her dream job.
Well, dreams and reality are two very different things.

Especially when our newly minted captain has to deal with an empty roster, budget cuts, the first non-pegasi cadets, and the pressure of finding out your best friend is now your boss, let alone a princess.

If that weren’t enough to make her quit, her three wing commanders might. Cloud Kicker is a sexual harassment lawsuit waiting to happen; Surprise makes no sense; and Lightning Dust is, well, Lightning Dust.

Meanwhile, Scootaloo arrives at the academy, ready and raring to prove she’s got what it takes to be an elite flyer. Pressure mounts as Scootaloo aims to make her hero proud.

Now on Equestria Daily
Editors: ping111
NotMurphy
Georg

Thanks for pre-reading go to:
John Perry
Distaff Pope
SolidFire
nygiants93
Eakin

Cover art used with permission by GSphere

Scootaloo may just be the world's most unfortunate filly. She gets the short stick on everything. Of course, it just so happens that that short stick will always entail dying. It's a good thing she doesn't seem to notice that she dies a lot, otherwise things might start to get a bit complicated.

Short vignettes which reimagine each episode of MLP such that Scootaloo dies in increasingly spectacular and insignificant ways. Updates twice a week, every Tuesday and Friday.

This story is a sequel to For Queen and Country

Twilight Sparkle always had a feeling that ponies were not alone in the universe. When he arrived in Equestria, she was proven right.

After he uncovered and subsequently overthrew a plot to kill the two princesses, they sent him back to his world. However, the curiosity of Princess Celestia was still unsatisfied. She had a glimpse of this other world through the mind of this one man, this agent of a service known as 'MI6', but wanted to know more. To this end, she resolved to send her former student there, in an effort to understand more of the human race and, perhaps, meet their mutual friend once again.

Who was this friend, you ask?

Bond. James Bond.

This story is a sequel to Thrown Abroad

After the events of Thrown Abroad, Suncloak the changeling is happily living in Ponyville. Well, sort of. He needs the love of friendship to stay alive! Luckily, there's plenty of ponies who would want to be friends with him. But let's not forget about other changelings here...

You know, this would be a lot easier if the whole concept of friendship wasn't so needlessly difficult.

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Amazing cover art by Wolfeh! Find her Tumblr here!
Fanart!
To be found on Equestria Daily here!

While moving to her new home, Zecora find the strangest creature - a large, nigh-hairless talking monkey-thing. Seeing how it lacks basic knowledge on surviving in the wild (and that it's quite tall and probably good at manual labour) she decides to adopt it as her assistant. Hopefully, she won't come to regret her decision.

This story is a sequel to The Sword Coast

The shadows of the past plague the present.

Twilight Sparkle stands on a precipice, one false step from a dark destiny. Months ago, she set out to find her foster father’s murderer. After she defeated the Black Knight, she was hailed as a hero, but what she remembers most is the lives she took. On the path of strife, she discovered more about herself than she ever expected.

With her friends by her side, Twilight sets out for Canterlot, seeking the villain responsible for the death of her father and the crises that plagued the Sword Coast. On the way, a sadistic spellcaster interested only in power intercepts her and promises to unlock her potential. In the aftermath, Pinkie Pie is taken captive by the secretive wizarding order that rules Canterlot.

Twilight’s journey takes her through the doors of a prison and into the depths of a forgotten place. She encounters horrors made from nightmares and soul-stealing beasts raised from the black of the Abyss, but what she fears most is the monster within. How far will she go to save her closest friend?

Featured on Equestria Daily
Cover by Bluest Ayemel
"I love this fic. Keep it up!" – Sethisto (on the EQD page)

Side stories: Tales of the Sword Coast

Warning: Comments contain spoilers. Proceed at your own risk.

In which Cadance I of the Restored Empire is given a very unusual Hearth's Warming gift.

Now with a Spanish translation by the gracious SPANIARD KIWI!

Twilight Sparkle is aware that the manipulation of matter at the sub-atomic level is a potential source of enormous amounts of free energy. She also knows that this is extremely dangerous, and that these spells are only for the highest level unicorns. She is therefore somewhat concerned to discover that Pinkie Pie has found another way to do this, with a curious contraption in the basement of Sugarcube Corner.