Pinkie Pie somehow lost her cutie mark and has asked Twilight to help her reclaim it. Twilight, having never seen such a thing before, obliges the frantic earth pony. When Twilight loses her cutie mark as well, they embark on a quest to find where lost things go.

For most ponies, Winter Wrap Up Day is a happy affair. This is especially the case in the town of Ponyville where they sing while clearing away winter with their own hooves. Yet for Luna, the princess of the moon, this day is one of the saddest of the year. On the eve of that day, she travels to Ponyville to visit Twilight, a good friend of hers, in order to enjoy the last moments of winter.

Rated Teen for a very brief, non-descriptive section on war

After being sentenced to six to eight weeks in Princess Twilight's dungeon for attempting to evict Fluttershy under ridiculous circumstances, Sugar Berry readies herself for her time in custody. But will her sentence be cut short?

A sequel to Six to Eight Weeks Dungeon for Ocalhoun's Big 250K Contest.

Punchline spoilers in the comments!

Self-edited, so hopefully there's nothing glaring.
Cover art is from a Google Image search.

When Twilight and Spike are foalsitting Flurry, she finally learns to say something new. Wooray! Right? No, probably not.
With chaos, drama and cute little Flurry, Twilight has a lot on her hooves now.

Twilight Sparkle is fed up of her unrequited love for Rainbow Dash. She has decided that the time has come to reveal the passion she has kept hidden for so long - but how? There is only one sane, logical way to do this.

She must become a cloud.

Nothing can go wrong.

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.

Starlight has always been a tea drinker. She has never experienced what coffee can do to a pony.

Maybe things should have stayed that way.

A collab with Frosty_Rainbow!

After a devastating Third World War, a planet nearly identical to Earth was discovered hiding on the other side of the sun. Desperate to bring hope back to a war-torn world, all nations united to send a manned mission to investigate the new planet. But when the old war pilot sent to explore it arrives, he will learn that there is more to this new world than anyone could have imagined, and that it holds some secrets that will change both worlds forever.

Edited By slateblu1

Princess Twilight Sparkle has been faced with a difficult decision. Unsure of what to do, she seeks advice from her old mentor, Celestia. The ex-ruler of Equestria may not have an answer for her, but she does have a story. A story about guilt. A story about the greater good.

A story about the day after the worst day of her life.

An unknown curse has stricken Twilight, and nothing can get her to rise from her bed. As her friends wonder what to do, Princess Luna offers one possible solution: to send another into her mind. Down the rabbit hole into the mindscape they go, to learn more about their friend than many would have guessed.

Special thanks to SoothingCoffee, Jake The Army Guy, and PegasusMesa