In the twining of divergent universes, this tale is a point where the two
Sister Timelines share a common fanfic.
In the Elsequestria timeline, this story follows In Vino Veritas.
In Sunset Rising, this story follows Moon Childe.
However, it also stands alone quite nicely.

Celestia is well aware that her treatment of Twilight Sparkle at the royal wedding left something to be desired.

The Sun Princess has therefore determined that an apology is the very least of what she owes. It is certainly a place to start. But... how does she even begin? For the first time in untold ages, she finds that she doesn’t know what to say.

Luna has a suggestion. And, dubiously at first, Celestia begins to put pen to parchment.

This story takes place a few days after A Canterlot Wedding, between Seasons Two and Three.

The Elsequestria timeline continues from here with Equestria Mares: Princess Celestia’s Secret Apprentice.

The Sunset Rising timeline continues from here with Twilight Sparkle Was Shot.

And, of course, the seminal story that starts it all begins here.

This story is a sequel to The Black Rainbow Concert

Wait... who did open for Black Rainbow, anyway?

What happened after they left the stage?

Yes, this is canon. But it’s also just for fun.

This continuity continues in If You Would Friend a Tiger..., though there will eventually be stories between that one and this.

Part of the Sunset Rising Continuity.

In their youth, Mr. and Mrs. Cake traveled from one end of Equus to the other, and they saw a lot of strange things. Now they’ve settled down in Ponyville, and the strangeness comes to them.

So, welcome to a place where other dimensions not only touch, but know each other’s safety words. Where pastry magic is as powerful as the magic of friendship, the stars are merely raindrops looking for a place to fall, and “canon” is just what you do in the daylight.

Welcome to Sugarcube Corner, Mr. and Mrs. Cake’s Crosstime Bakery.

Here. Have a pastry.

Enjoy.

Inspired by Spider Robinson’s Callahan’s Crosstime Saloon and an offhand comment by FanOfMostEverything.

This anthology is not part of my other continuities. That being said, it touches on a variety of verses, and guest spots are possible. As is usual with my stories, all episodes (aside from most of Season 8) are part of this canon unless directly contradicted.

Finally, I have no plans for this collection of little tales to be finished, so there’s no sense in waiting for it to be “complete” before reading.

This story is a sequel to Reunions and Laments

Black Rainbow is a unicorn shock rocker with a tempestuous reputation. So, when the CMC wanted to attend one of his concerts, Sunrise volunteered to chaperone. Applejack, Rarity, and Twilight all thought this was an excellent idea.

They had all forgotten that, even for someone from another world, Sunrise has an unusual perspective on things.

When the concert ends, the discussions begin. Suddenly, the jury is out on just how excellent that idea was. Sunrise’s explanations may or may not be helping her case.

(Content note: narcotics, or “bad alchemy,” are discussed by the main characters but not used by any characters directly depicted.)

Artwork by Sixes_and_Sevens. Please check out their excellent artwork and stories.

This continuity continues in If You Would Friend a Tiger..., though there will eventually be stories between that one and this.

Chronology Note: This story takes place at the beginning of Season Six. In this timeline, Starlight is not Twilight’s apprentice.

Part of the Sunset Rising Continuity.

This story follows How About Because I Love You, but also stands on its own.

It was hardly a mystery that Rarity was innocent of murder. And, for Prince Blueblood, the true identity of the culprit was also easily surmised.

But the evidence against Rarity was compelling. Compelling enough, in fact, that a case would have to be built against the true murderer for Rarity to go free. The problem was that Blueblood had no idea how they’d done it, or even why.

With time running out, and both their lives on the line, Blueblood must find the true solution to the murder of Filthy Rich. For if he fails, his aunts will have no choice but to pass sentence upon one of their dearest friends… and upon him, as well.

Chronological note: this story takes place towards the end of Season Five, a bit over two years after Rarity and Prince Blueblood first met at the Grand Galloping Gala.

Comments note: by the very nature of the story, a lot of the comments discussing its unfolding plot contain potential spoilers. Some have been masked, some have not. Please be advised.

(This timeline continues in The Apple Jamboree, which is completed and posted.)

Part of the Elsequestria Continuity.

This story is a sequel to Twilight Doesn’t, In Vino Veritas, Equestria Mares, and The Real Question, in that order.
The stories of this timeline are linked together for convenience.

Twilight and Applejack have been together, more or less, since shortly after their first Grand Galloping Gala. It was a slow and careful process, but as they grew closer together they were able to make it work.

Then, Twilight became an alicorn. She journeyed to an alien world, met Princess Celestia’s first apprentice, and saved the world. And through it all, Twilight has been becoming more distant, more withdrawn. And recently, more defensive.

Whatever the reason, Applejack can feel their relationship crumbling around them. But she is determined to not let it go without a fight... or at least without knowing why.

Chronology Note: This story takes place about halfway through Season Four.

This timeline continues in Murder at the Rarity Boutique.

Part of the Elsequestria Continuity.

This story follows The Black Rainbow Concert, but it also stands alone nicely.

Long ago, Princess Luna formed a son from her own mystical essence, named Jack. She also, in what was to become the custom of new Equestrian parents, made him a tiny stuffed animal.

Since then, Equestrians have made a wide variety of stuffed toys for their children. Being ponies, very few have ever made toy predators.

Which is ironic, since Princess Luna made for her son... a tiger.

This is his story. Or at least, a story about a few of the lives he touched. And yes, some of the chapters are quite small. But then, he was a very small tiger.

Artwork by Sixes_and_Sevens. Please check out their excellent artwork and stories.

Jack also has his own story, Moon Childe.

(Chronology Note: Chapter Seven takes place during Season Seven, between the stories to either side of this one.)

Part of the Sunset Rising continuity.

With the help of The Apparatus, Queen Twilight Sparkle had gained knowledge from innumerable divergent worlds. Using this newfound mystical power, she had conquered her world, united its varied peoples, and brought peace and prosperity to all through her own benignly neglectful rule.

Then Cadence, Princess of Love and the last of Twilight's family and friends, destroyed the Crystal Palace.

Along with everyone inside.

Why?

(Content Note: While the red tags are technically accurate, this is first and foremost a work of speculative fiction. It is not a gore fest.)

(Chronology Note: The crux of this tale takes place outside of continuity, in several of infinite possible futures. Its driftwood may touch upon any number of dimensional shores.)

A Queen of Light and Darkness story.

This tale was strongly inspired by Larry Niven’s All the Myraid Ways. Though I only read it once many years ago, it left a powerful impression on me, and you can definitely see that in this story.

Special thanks also to B_Munro, for recognizing the stories’ similarities and telling me who wrote that splendid story I’d read as a child, and what the name of it was.

Due to the nature of the discussion which follows this tale, there are comments - including mine - which may contain spoilers to varying degrees (depending on what you consider an actual spoiler). The more serious spoilers are behind the usual black boxes, of course.

This story follows Cupid Mark Crusaders, but it can also stand alone nicely.

Vinyl Scratch was the quiet kid at Canterlot High. She didn’t speak in class, walked too fast to keep up with in the halls, and generally tried to be as invisible as possible. So far as most people could tell, she had no friends and wanted none.

But even as a Junior, when the parties were thrown, her talents as a DJ were in demand. Nobody doubted that she’d be a pro someday.

Which also meant that, when she was at the turntables, she couldn’t get away so easily. And that gave Octavia the one and only chance she would ever have.

Entered into Artist’s Contest.

(Part of the Sunset Rising continuity.)

(This timeline continues with A Smashing Good Time.)

(They say that sometimes, to write something classically great, you should step back and write something that is classically not. Of course, in theory you’re not supposed to publish those exercises. Join me now, as I test that theory.)

Landing on the forbidden planet Equus-1, the away team of the star ship Enterprise discovers that one of their number has actually visited there once before... as the ship’s command crew is rocked by the revelation of Scootaloo’s true parentage.

Meanwhile, a space armada of ninja weasels prepares for the invasion of Equestria on behalf of their dread Lord of Darkness. Their first target? Princess Celestia, of course.

Also, there’s Captain Kidd. Or perhaps Fidel Castro P. T. Barnum. I haven’t decided yet.

Anyway. The point is, you’ve been warned.

(Continuity note: none of my timelines would accept this story.)