Twilight Sparkle has failed at getting the Crystal Heart in time, letting the former king, who enslaved the entire kingdom over a thousand years before, return to take over the Empire.

Now, with the Crystal Heart permanently gone, Twilight is now bound to King Sombra for all eternity...

Because of this, it even left the only pony who can save her, her loved ones, and the empire, powerless against him.

Inspired by THIS image!!!!

Cover art by SapsDrow

Now with Dramatic Reading by ME!!!

Darkness is a living thing. It consumes the strong and destroys the weak, not knowing the meaning of mercy. It corrupts and devours until there is no light left within one's heart.

What happens when the young mare who wields the Element of Magic succumbs to the Darkness?

It was a semi-normal day as Twilight was mapping out the Everfree forest. She didn't know why, but she doesn't care. She told Spike to leave when she might get hurt, but she didn't care. Until see comes upon a magic cave that will charge her life forever. Now she wants to share her new found power with her friends.

Takes place right after games ponies play.

A week has passed after the canterlot wedding. When a living pile of black slime appears at twilight's house. It reminds her of when her friends, her brother, spike, and her mentor did not believe her when she know that something was up with cadence. Now the monster makes her believe that one day they will turn away from her and leave her all alone. Anger will become her weapon, Anger will make them pay. Soon all will know to never turn there back on...VENOM!!!

Story inspired by vampdash's venom rising
edited by King of Kings

This story is a sequel to Lost into Shadow

Twilight has failed, or rather, she has succeeded. Her darkness is her power, and together with her husband, Queen Twilight has a new plan for all of Equis. The black castle rises to greater power than has ever been seen before. War is brewing while alliances are forged and others are broken. The days of harmony are dead and gone, and all the world will be forced to mobilize against the might of the Nightmare Hordes. Will they prevail in the faces of Wrath and Despair? Do they have any hope of someday returning to a time of peace and love?
....
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Not a chance, because in Chapter 1, Hope dies.

Twilight Sparkle has obtained the combined power of all four princesses of Equestria. Wielding this power, she confronts Lord Tirek, but the result of their fight is a tie. When he holds her friends hostage, she is forced to make a difficult choice.

All is not lost, however: one force remains in Equestria that could give her the edge she needs to defeat her foe, save her friends, and restore the world. She need only retrieve it from Zecora and place it around her neck...

Runner-up (one-shots category) in the Twyrant's Kingdom Competition.

Story inspiration: Corruption of a Desperate Mare, by Chris Wöhrer.

Edited by NightWolf289, AugieDog, and Prak. Thanks also to Pascoite for his WRITE review.

Rated teen for gore and dark themes.

Featured on:
Fimfiction.net Feature Box (05/12/14)
Equestria Daily!
The Royal Guard's Fic Spotlight #10.

This story is 100% approved by Twilight's Library!
Approved by Nonpareil Fiction!

It has been a few months since Twilight and her friends went to help save the Crystal Empire, and Twilight had to use dark magic to find the Heart. And ever since she got back, Twilight's been acting strange spending most of her time muttering to herself, hearing voices, and locking herself up in her now 'off limits' lab basement.

P.S. seeing how many corrupted twilight fics there are, I'm sorry if anything I write is from your stories.
P.P.S. Cover art credit goes to Sorelstrasz from deviantart

After being introduced to Dark Magic, Twilight has used it to her advantage multiple times(using it for Zecora's potion, finding the Crystal heart). Twilight starts to experiment with it, causing her to grow obsessed. She's noticed that its beginning to change her. She must stop herself from succumbing to the darkness before her friends loose her forever.

Twilight had reached her peak, she was at the happiest point in her young life. The day of her coronation as Equestria's newest princess had finally arrived. Then the unthinkable happened, Sombra appears in the throne room alive and well demanding his chance to be reformed by pony society. The unthinkable happens again, when his wish is granted, spearheaded by none other than Princess Twilight herself. Will Sombra's nefarious plans bring her to ruin, or will she succeed against all odds? Only time can tell as it reminds them both that plans have a way of changing all on their own.

Sombra may have been defeated after his attempt to retake the Crystal Empire, but he was not destroyed. He still lives, and now he seeks to work his way into the mind of Princess Twilight Sparkle. As she struggles with the implications of her new immortality, she finds less comfort in the wise words of Princess Celestia, and is drawn to the dark magic of a fallen king.