This story is a sequel to The Flight of the Alicorn

Rarity was certain her troubles with magical gemstones had ended, but an unexpected royal visit soon convinces her otherwise. In order to save an ailing Princess, stop an ancient menace, and avert a disaster that threatens the survival of a lost tribe of ponies, Rarity, Blueblood, and a brave group of friends will travel to strange and foreign lands, and into the fathomless depths beneath tormented seas. In her quest to uncover the secrets of the Abyssal Forge, Rarity will have to use all her charm, wit, and skill—and rely on allies old and new—as the unlikeliest of ponies once again attempts to save the world in style.

Part Two of Three
The Adamant Triskelion - Book One: The Flight of the Alicorn
The Adamant Triskelion - Book Two: The Abyssal Forge
The Adamant Triskelion - Book Three: ???

Beautiful cover art by Lucky Dreams.

There's a plague infecting Equestria, and Diamond Tiara has taken it upon herself to cure it. They may be stronger in number and in sheer absurdity, but she's got a little something special to even the odds.

That something being a three-foot long magically enchanted samurai sword. Look, nobody said this was gonna be pretty.

(Written for the FIMFiction Writeoff Association's inaugural writeoff. The prompt was "Lonely Happiness". I got a bit creative with it.)

These are the results of the Fimfiction Writes Ponies! project, in which almost a hundred users were allowed editing access to a single Google document, with the final goal of writing a coherent story about colorful ponies.

This... is their story. It is the tale of Mecha-Trixie. It is the tale of Lord Apep, who ate the sun. It is the tale of the shattered multiverse, the permeable boundaries of which may cause the end of all Equestria. Rarity may or may not be eaten by a ghost-shark at the end of things. It is enormous. It cannot be described in mere words. Read it.

Go forth, my friends, and know that this is what Fimfiction has wrought.

If you want to see the original thing in its unvarnished glory, feel free to check out the Google doc, locked for editing but now open to public viewing.

Credits for The Wonderful Folks Who Helped Make This Happen

Abstract: In his final and most personal monograph, a prolific and widely celebrated ethnologist and hippologist describes the customs of the Little Ponies (sp. Equus parvus) related to courtship and matrimony. Topics covered include sudden-onset equine infatuation (SOEI), typical courtship behaviors, the prominent role of the equine matchmaker, and the rituals of equine marriage.

But this study moves beyond a mere description of pony culture. It reflects also on the interactions between pony and human—and on what those interactions mean for the future of the human race.

Featured on Equestria Daily!

Twilight Sparkle, Princess Celestia's most prized and faithful student, is being sent to Ponyville to learn about the magic of friendship.

And she's not happy about it.

Hear what Celestia has to say back! Check out the spinoff:
Responses To A Disgruntled Friendship Student by keaton-furman-prower

Still want more? Have a multiverse spinoff by MixMassBasher, my contributing writer for Seasons 5-9.
Letters From Across the Disgruntled Multiverse

Editing by Neko Majin C.

Disclaimer:
The following is a work of parody, and is protected as Fair Use under section 17 U.S. Code § 107 of US Copyright Law. My Little Pony: Friendship is Magic and all affiliated characters are property of Hasbro Inc.

The story is generally the same. A group of ponies go on a quest to stop an insane alicorn who had escaped banishment, learning about friendship along the way and mastering the Elements of Harmony. But the details...

It can be Trixie Lulamoon leading the Elements of Harmony against Corona.
Rainbow Dash could be Celestia's student and go to Ponyville.
Equestria could have a deep connection to three young people in its distant past.
The Elements of Harmony could have been moved to Manehattan for the ponies to quest for.
Princess Cadance might rule over an Equestria of music, with Octavia as her prized protege.
Or Spike and Twilight might have their roles reversed, the former a stallion and the Element of Magic.

And each one has been chosen by Discord, an Element removed to a seventh Equestria for purposes as yet unknown. Can they survive? Can they get home? Read and find out!

The Lunaverse was created by RainbowDoubleDash and is used with permission. Opening segment was written by Talon and Thorn.
The Hasbroverse was created by RK_Striker_JK_5 and is used with permission.
The Manehattanverse was created by Little Jackie Papercut and used with permission.
The Cadanceverse was created by GrassAndClouds2 and used with permission.
The Flipverse was created by Bed Head and used with permission.
The Dashverse was created by Trinary and used with permission.

And special thanks to dramatic_spoon for getting this all together.