This story is a sequel to Magic of Love

Twilight is planning something big for her marefriend, and is keeping it a secret from everypony. In the process, Fluttershy starts to wonder if the unicorn's feelings are true. Meanwhile, an old enemy starts to plot her vengeance! Hope you enjoy!
Contains Femslash, you been warned! ^_^

Original pic belongs to IraeCoal, here's her dA, make sure to check her out, you won't regret it!

One year after her coronation, Princess Twilight Sparkle is dead, killed by her own subjects out of fear and jealously. After the funeral, Princess Celestia isolated herself from the world, mourning the loss of her brightest student and daughter figure.

But she cannot weep forever. She must take control of her duties once more. Haunted by the memories of the assassination, and its aftermath, Celestia slowly makes her way to Twilight's resting place to find some closure.

Now With its own TV Tropes Page!

Sequel is up

Twilight Sparkle, a magnificent alicorn and now a joint ruler of Equestria, watches quietly as her closest friends all die around her, one by one. However, the more she watches each death occur, one fact nags at the back of her mind: what if her friends deaths aren't just accidents? More occur, then the letters come. They all bear one repeating request. Give up the throne, or watch more ponies close to her die. That is, if Twilight can find the murderer first.
-Inspired by the movie Nonstop.
*I did not put the real murderer in the list of characters in this story. The character tag will be added at the end of the story, to prevent spoilers.*
-Coverart is courtesy of MetaDragonArt on DeviantArt. Thank you!

Princess Celestia gave her life fighting against Sombra. That's the story everypony knows and tells and mourns every year. But Twilight is convinced she was transported to another dimension, and she won't let anything stop her from bringing the sun home.

Original idea by Rated Ponystar.

Lapis-Lazuli presents...
When a strange and mysterious magical accident drags poor young Sweetie Belle through a rogue portal in space and time, it will be up to Twilight and her friends to rescue her from an unknown fate. Of course, they're going to have to rescue themselves as well, seeing as how they have no idea how to get home. Faced with madpony scientists, ruthless mobsters and fanatical pony supremacists, it will take every ounce of gumption, style, and genre savvy for them to survive long enough to find a way back to the Equestria they all know and love. But the strange new world they find themselves in does not want to let them leave, and it's not alone in its desire to keep them there...

This story is a sequel to The Celestia Code

When the monsters created by the dark crystal engine escape their prison, it's up to Princess Twilight Sparkle to deal with them. She gets help and advice from Princess Luna, but things don't go as planned. In fact, when a pony who relies on logic and rationality tries to navigate the stormy seas of emotional entanglement while simultaneously saving Equestria from a horde of evil creatures intent on destroying everything they encounter, nothing goes as planned.
AUDIOBOOK by VisualPony
WARNING: Major spoilers in the comments.

Book 2 of the Alicorn Adventure series.

Goodreads Page
100% Approved by Twilight's Library!

The Badass Twilight tag applies more than ever, but please note the new tags.

This story is a fairly direct continuation of The Celestia Code. You might be able to follow it without having read The Celestia Code first, but it's better if you do.

The sequel is here: The Twilight Enigma

Most excellent pre-reading/editing done by the erudite AcademicPony and the dapper statoose!

Princess Twilight Sparkle discovers a centuries-old mystery hidden in the Royal Archives. Her investigation leads through layer after layer of deception and misdirection, setting her hooves on a path that seems to be leading to a mysterious secret. Along the way, she learns that some friendships can be very, very strange.

Book 1 of the Alicorn Adventure series.

AUDIOBOOK by VisualPony
Featured at the Royal Canterlot Library
TV Tropes Page (Courtesy of Sandtalon)
Goodreads Page (Courtesy of Facedeer)
Equestria Daily Page

WARNING: Major spoilers in the comments. Takes place several months after the end of season four. (Not a Da Vinci Code crossover, BTW!)

Do you see a dark tag? No, you don't. Not dark. Well, okay, there are a couple of dark-ish bits, but that's all. Not enough to warrant a tag. Speaking of tags, there really ought to be "Badass Twilight" and "Friendshipping" ones.

Sequels and side-stories (and more) can be found here Offprint and AO3, and a hardbound two-volume set of all that can be ordered from The Ministry of Image.

My editor for the first edition of this story was Gogito, and I can't thank him enough for all the hard work he did. My editor for the revised version was PresentPerfect, and he did a terrific job of getting the story into excellent shape.

Twilight Sparkle is a normal pony.

As normal as a pony can get as Princess Celestia's personal protogé, The Element of Magic and being the Savior of Equestria twice over that is.

She lives in Ponyville and is the librarian of Golden Oaks Library, she is the best of friends with five of the greatest mares in Equestria.

She is not some extremely powerful unicorn who has to closely monitor how much magic she has so as not to destroy anything by accident, she is not somepony who has infinite arcane knowledge at her disposal.

And she most certainly does not have Runes covering her entire body from horn to hoof.

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This idea just randomly popped into my head when I saw the cover art, I have gotten permission to use it so YAY FOR ME~!
Tell me what you think of it! =^~^=

"Twilight Sparkle, you are hereby sentenced to exile!" From those words her entire world changed. Is her happy life gone forever? Or can it only get worse? What will befall the dethroned princess and will she have to bare her fate alone?

My entry for This contest

And I officially have an editor! Much thanks to pinkiepie17 and Twilight Scratch

This story is a sequel to Lost into Shadow

The impossible has happened, through all the pain and darkness, Twilight Sparkle succeeded in her impossible mission...mostly. King Sombra is still plenty rough around the edges, but despite being an old dog he's making an effort to learn new tricks. Where will this new way of life take him? He has absolutely no idea, but with his queen to guide him, what could possibly go wrong?