Daring Do cannot believe her luck when she is asked to help explore the most ancient tomb known to ponykind. But terrible danger awaits her, for beneath the earth rests something beyond equine understanding.

Warning: comments contain ending spoilers.

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Alternate ending by Duplex Fields.
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[Complete] Celestia awakens to see an empty world, white sandstone stretching the horizon. She wanders the world as she builds it from her imagination, filling it with life, but as time passes, the world that she created begins to seem like little more than a lucid dream, conjured from the dust.

Infuriated by a seemingly unwritable essay, Twilight Sparkle turns to bashing her head against a table to ease the feeling of literary inadequacy. Luckily, Spike is there to offer some more practical advice on finishing her essay--and why she should write it in the first place.

After the Changeling invasion, Celestia and Luna make the decision to have Twilight investigate the Elements of Harmony and solve the mystery of their power.

A thousand years later, Rainbow Dash awakens in a world she does not recognize. She has no idea how or why she came to be there. She does not know the language, the geography or any of the rules of this new time. She soon finds allies in Star Fall, a scholarly pegasus whose Talent is Magic, and Astrid, Star Fall's Griffin guardian. Together they set out to discover why Dash has been sent to the future, and how she might return to when she belongs.

War threatens the nations, a Nightmare stalks the shadows, and Rainbow Dash's arrival has turned her into a wild card in a deadly game that pits the law on both sides of a broken Equestria against a mysterious criminal figure, Max Cash. Yet the stakes are higher than anyone knows, for in her research Twilight Sparkle discovered a dark secret about the Elements, something that will shake the foundations of the world.

Cover image by SierraEx
Has a TvTropes page

They take… really long bubble baths.

An indirect sequel to “My Little Staring Contest: Alicorns can stare for a very long time.”

She is as beautiful and graceful as the moon, and just as hard to reach. He is a young artist with much to learn about the world. When he accepts her challenge to create an artistic masterpiece, will he win her heart, or learn a terrible lesson in the nature of beauty and love?

Time... It truly does fly. You don't realize you're out of it until the clock's about to ring.

Cover art done by the wonderful Carnelian

(Author's note: I wrote this when I was like... 17 or 18 or something like that and it's hamfisted garbage. Read at your own risk. )

After a busy day celebrating princess Mi Amore Cadenza's birthday, Shining Armor and his wife take time to wind down, relax, and talk. The topic of their conversation soon moves in an unexpected direction, and the couple finds that their marriage still has surprises in store for them both.

Cover image by naroclie. Used with permission.

My name is Twilight Sparkle, and 350 years ago, Sweetie Belle and I vanished without a trace.
Now here we are, in the future.
Equestria has become a utopia, with everypony living in peace and harmony.
Everything is perfect. All a pony could ever want, and more.
My name is Twilight Sparkle, and I want to go home.

Editing provided by Stereo_Sub and JustAnotherTimeLord.

Cover art courtesy of Geomancing.

Reading by lieilengi

Spanish translation by Spaniard Kiwi

The storm is breaking on the Horizon.

It's been two months since the battle against Nightmare Moon. Luna is recovering, Celestia is busy turning the government back into a diarchy, and the Mane Six have returned to their lives. All seems well, but when Celestia discovers that half of the power of the Elements of Harmony have been transferred to each of the Bearers, she decides to send thirteen mysterious members of the Royal Guard to monitor them as they manifest and develop their new abilities.

The sins of a forgotten war still linger, and an ancient evil lurks in the shadows, just waiting for the right time to strike. The Mane Six suddenly find themselves once again at the heart of a conspiracy to bring about Eternal Night, and only by awakening their powers and realizing their full potential can they do anything to stop it. Friends both old and new will help them along the way, and an unseen force will guide them as it seeks to right a wrong made thousands of years ago. The Bearer's journeys will take them outside the borders of Equestria and into the world beyond, and when they return, they'll have the power and experience necessary to save the world and bring about balance in all things.

The Powers of Harmony TV Tropes Page (SPOILERS)
The Powers of Harmony Art

Thanks to Wildy71090 for the cover pic.