An MLP/King's Quest crossover.

Years have passed since Twilight's adventures with her five friends, and she has since taken a young filly under her wing as a personal student. Upon one evening on a rather special occasion, she recalls a distant tale that occurred before she even became a Princess. A tale is told of Twilight's unexpected adventure to a far away land, where she befriended a young boy to whom she owes far too much to.

This is her tale of how she met the young King Graham.

A clerical error in the Registry of Mortals sends an unwitting human to a strange land. It wouldn't be so bad, if the ponies there weren't out for his blood.

Literally.

A little twist on the myth that unicorns were hunted for their fantastical powers.

Celestia had a niece once, not an adopted niece like Cadance, an actual biological niece, the daughter of Princess Luna. Sadly when Luna became Nightmare Moon her daughter took her mothers side and led the their forces against Celestia.

Princess Twilight was killed during that battle, or so history tells us...

Featured on the 11/10/2015! Thanks so much!

At Moon Dancer's Party, Lemon Hearts, Twinkleshine, Lyra, Minuette, and I realized that only we stood between a cursed Celestia, a conspiracy in Canterlot, and the coming of Nightmare Moon. Celestia had managed against the geas to train me, appoint me as her crown representative, and send me to oversee the 1000th Summer Sun Celebration in Ponyville. But she'd prevented the royal guard from helping me. Could we, with Shining's help and a hoof-ful of crazy Ponyvillains, save Equestria from nighttime eternal?

A novella about the second bearers of the Elements of Harmony.

Twilight Sparkle was annoyed to say the least, when her mentor Princess Celestia dismissed her warning of the Mare in the Moon and assigned her to go to Ponyville to supervise the Summer Sun Celebration. 'Make some friends' she says.

The thing is, Twilight already had friends. Friends she's had ever since she got into Celestia's school for gifted unicorns, friends she's taken for granted for many years, friends who she just happens to bump into before leaving Canterlot and invite themselves along to the celebration.

Between the crazy ponies in this little town and the crazy ponies who call themselves her friends, she finds herself at her wit's end while being constantly sidetracked in trying to prepare for the fabled Nightmare Moon's return. After all, it's not like these old schoolmates of hers are going to be able to help prevent eternal night and the end of Equestria as they know it, right?

Twilight had planned to visit Sunset Shimmer and her friends over in the other world for a nice, quiet weekend, away from all the worries and problems associated with being a Princess of Equestria. Unfortunately, things rarely go as planned.

After an accident cuts her off from Equestria, Twilight finds herself stuck in the human world until the gateway between the two worlds can be fixed. Which wouldn't normally be a problem...

...If she wasn't still a pony.

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Cover art
Proofread by Dusty Old Qrow, RQK, Dusty Tomes (Ch. 2), Emtu, and Doctor Candor.

Sunset Shimmer has finally rebuilt her life at Canterlot High. She has friends, she's in a band, people like her, everything's going great...

And then out of nowhere, she turns back into a small talking unicorn.

Now, with the help of her friends, she has to figure out why she's suddenly a pony in a human world, and whether or not she can become human again...or will have to leave her new life and go back to Equestria.

(Cover art vector sources: Elsia-pony, TheShadowStone)

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After years of shame and ridicule, archaeologist and explorer Lyra Heartstrings stumbles across a discovery that validates all her theories and ideas in one fell swoop. Along with her best friend, Bon Bon, and her old classmate Cadance, they find themselves faced with a mystery and marvel that may change everything.

Following the next greatest lead found in the database of an ancient race, another international team is formed. Led by Doctors Carter and Jackson, they strike out to explore another network of Stargates discovered in a galaxy on the edge of the local cluster. In the process, their findings will cause them to question much of what they thought they knew.

The adventures continue and unlikely allies will face dangers new and old as the Legacy of the Ancients continue to unravel in the latest chapter of the universe.

[Co-written by Thunderclap and Shagohad12] Formerly co-written by Grey Cait. [Edited by: Lithl and m2pt5][Cover art: 1, 2 modified + vectors]
Now with a Russian reading by SviMik

What if Rainbow Dash never existed to turn six young lives upside down with her Sonic Rainboom?

Harmony will always find its Element-bearers, and something certainly would have united six friends to wield them ... but a change as small as the flapping of a butterfly's wings can have enormous effects on everything that follows.

* * *

Second-place winner in Skeeter the Lurker's "Switcheroo!" competition! This entry centers around the episode "Sonic Rainboom" (with influences from several others).

"Recommended" by Present Perfect: "Though this is well-worn material, the directions in which horizon takes it are remarkable. ... That alone makes it worth the read."
Reviewed by PaulAsaran: "horizon's re-imagining of Equestria is almost complete, defying the norms and tossing most of our expectations to the four winds. ... I am very impressed."
★★★★ rating by Louder Yay * Reviewed by Titanium Dragon

It could have been just another night. Instead, Vinyl Scratch leaves a show to find herself suddenly presented with a chance to make a difference in the life of a filly no one else will look twice at. Now if only she can convince Octavia she's not making a huge mistake...as usual.

Note: This story now has an indirect sequel set several years in the future in The Most Unlikely Places. Cover art by SonicDash777.