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.

An innocent joke reveals a startling secret.
Due to popular demand, it has been expanded to three chapters, plus a sequel in the near future.

The story of Rochelle, a changeling in Canterlot, and how she ends up with a most unusual job...

Prequel to the story A Meal Fit For A King

A feud between two chefs ends up involving a very strange third party.

Now has a prequel in the works, called Cooking Roach.

Leiurus Quinquestriatus, the Deathstalker, a changeling raised to be a living weapon, is left without direction after the Canterlot invasion. Found by The Great And Powerful Trixie, she is taken to the Crystal Empire, in the hopes that somepony will take her in. However, Leiurus was given very specific orders regarding the Crystal Empire...

Orders regarding its destruction...

Part of the rebooted Cricket-Verse, aka The Nonsense-Verse.

Orchid Mantis, a changeling, has come to the Crystal Empire, hoping to retire in peace. However, a terrible curse set by King Sombra as revenge for his defeat threatens the city, summoning monsters to raze everything to the ground... and only the power of love can stop them. The changeling, being able to tap into that power at will, has been drafted to help fight these monsters when they appear...

However, for a dedicated martial artist, defeating monsters is easy. For a changeling, raising a child is a much greater challenge. And building a meaningful relationship? Harder still...

Part of the the rebooted Cricket-verse, aka The Nonsense-Verse.

Ling, a mute and magic-less young changeling, is stranded in Canterlot. Only a week after the failed invasion, and desperate for love, she resorts to begging in the streets for hugs... and ends up adopted by the end of the day. However, there are those who see her, not as a person, or even a changeling, but as a pawn in a devious plot, one that could ruin her foster parents...

But Ling is nowhere near as defenseless as she seems...

The third story in the rebooted Cricket-verse, aka The Nonsense-Verse.

After being stranded in Manehatten, a changeling is saved by a young filly who is being terrorized by a monster hiding in her closet. After the horror has been taken care of, the changeling and the young filly become close friends... and the changeling and the filly's foster father become something more...

The second story in the the rebooted Cricket-Verse, aka the Nonsense-Verse

Mole Cricket, former commander of the changeling swarm, finds himself stranded in Equestria, with no idea where the rest of his kind may be... and no intention of reuniting with the swarm, since the Queen would blame her failure in Canterlot upon him. After encountering a group of youngsters who, instead of seeing a monster, see a hero, the changeling decides to dedicate himself to an impossible goal...

To become the first changeling to attain knighthood.
Cover Art by SlashOpenTheSky

The first of five new stories for the rebooted Cricket-Verse... now renamed the Nonsense-verse.

A witch a thousand years out of her time, a changeling kicked out of the hive, and an earth pony who defies explanation become friends.

An early experiment by the author of Your Fangs Are Showing, and the rest of the Cricket-Verse. If the response is good, more will be added.