After receiving an urgent letter from Princess Celestia concerning a grave danger to Equestria, Twilight Sparkle undergoes a crisis of faith. Can she perform a grim task for her beloved mentor, even if it means sacrificing all that she cares about?

Based on a story prompt by TraleRayne. Extra special thanks to Dream of Ponies and Noble Jury.

After the Elements free her from Nightmare Moon, Luna asks Celestia, "What happened to my daughters?"

Celestia escorts Luna to the Canterlot Sculpture Gardens and shows her the Reliquary of the Heroes.

Under the statues of her millennium-dead daughters, Luna learns how they lived in the shadow of Nightmare Moon's treason, and how they died as glorious heroes of Equestria.

Sequel: With Her Majesty's Coast Guard.

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Content warning: Pandemic. Note that this was published before current events.

Twilight Sparkle is the master of her own mind. She is the Princess of Friendship. She is the fourth piece of the Alicorn Tetrarchy. She has incredible power, and she has always asserted it in a necessary and compassionate way. She has a charmed life—a wonderful set of friends, a beautiful castle in a lovely little town, and is constantly busy with her life, stretching her wings upward and outward to new horizons as often as possible.

There can be nothing wrong with her.

Pre-read by Majin Syeekoh.

Zecora had never seen an aura as bright or as warm as Sunset Shimmer's. Thousands of miles from home, Zecora had found a kindred spirit who could ease her feelings of isolation. Their lights grew together, forming a brilliant radiance.

But the brightest lights cast the deepest shadows.

Both Zecora and Sunset have a secret, one that would put the other in mortal peril. In a single night, both secrets will surface, and Zecora will have to choose between following her heart, or her duty.

Because humans and monsters cannot coexist.

Pre-read by DrakeyC, JayMan155, and EbonQuill

An entry into Oroboro's Sunset Shipping Contest: Journeys

Cover art made by JayMan155!

Sunset didn't realize just how different other dimensions could be before going through the portal. Now she finds herself in a world where people never age or grow, they just attend high school forever. Whether she's entered a paradise or a nightmare remains to be seen.

It is the year 2038, and the Earth is slowly being consumed by a space-borne monstrosity dubbed the Black Tide, which is using nanotechnology to remake the planet into something hideously alien.

Erin Olsen works for Project Harmonics, humanity's last-ditch effort to find a new world before the Tide can wipe them out. But when that world is found, and it turns out to be occupied, Erin will need to find the courage to face the unknown in order to save the inhabitants of both worlds.

(Many thanks to Easteu for the fantastic cover image for this story!)

Now with its own TV Tropes page

There is now a follow-up to this story: Sunflower - Side Projects
Sequel: Project Sunflower: Harmony

You'd think that being trapped in stone would mean that, if nothing else, I could get some peace and quiet. Unfortunately, it seems that Celestia has other ideas.

She has appointed these ponies... these 'Keepers', as she calls them, to keep me entertained during my incarceration.

Honestly? I'd prefer the boredom.

Cover art by matrosha123
Spanish Translation by SPANIARD KIWI found here

Princess Celestia tires of constantly being surrounded by decorum, deference, and formality, and decides to take a day off from being Princess. But visiting Ponyville incognito is harder than she expects. Will she be able to fit in and make friends without blowing her cover?

When Apollo 11 lands on the moon, Neil Armstrong utters his famous lines as his boots land in the lunar regolith, but when he turns around he finds something no one was expecting or had ever planned for.
There's an alien on the moon. And it's blue, four-legged, and staring at him.

Sequel here.

Sunset Shimmer had no idea why everyone was taking to this new girl so quickly. What does she have that she doesn't? Besides friends? And an endearing personality? And a cute butt.