After failing to stop Nightmare Moon in the ancient castle of the pony sisters, Twilight Sparkle is left with a scar that will permanently change the rest of her natural born life. As Twilight recovers from her ordeal, she finds that she is left with a difficult choice. Either live her life as a lie or sacrifice her innocence to protect the ones she loves. The path before her is set and she must now walk it alone. The sands of time continues ever onward, with everyone already trapped in its muddy depths. The sun will rise and the sun will fall. Waiting for its call, Death awaits for all.

Tags, rating, and characters can change.

Art created by:
http://cuteskitty.deviantart.com (top)
http://ventious.deviantart.com (bottom)

I just put the two together

Twilight is invited to Canterlot to compete with some of the greatest magicians in the world for the Moonstone Cup, a prestigious award for the most powerful and skillful magicians, unicorn and otherwise. Can she win? What sort of competition will she face?

Awesome cover image was taken from NoOneBahtim

This story is a sequel to In Her Majesty's Royal Service

After guardsponies Storm Stunner, Crack Shot, and Check Mate proved instrumental in stopping an interdimensional incident that threatened to annoy the city of Canterlot, the Royal Guard made a realization: perhaps they might just be able to serve functions beyond pulling aerial chariots and trying not to blink in public.

Now months later, they're finally starting to get somewhere with each of the odd regimens they've designed; it's a shame that three of their number will have to miss the progress to follow. In recognition of their prior bravery, quick thinking, (and to a smaller degree their dumb luck), Princess Luna has given Storm, Check, and Crack Shot a special assignment: to visit the lands on the borders of pony control, to sample the local flavors, and to maybe even take a picture or two. One might dare to call it a vacation.

However, expectations mean little so far from home, and despite Luna's wishes to keep the guardsponies out of harm's way, the world can easily change in a thousand years. The three guardsponies may be forced to deal with the inconvenience of their vacation turning into an adventure.

First Story: In Her Majesty's Royal Service

Applejack finds a strange visitor in her apple orchard one day, with even stranger stories to tell...
MLP/L4D2 crossover. My first story on FiMfiction.net! May add more tags as story progresses.
Credit for the image goes to brokencreation on DeviantArt.

Inspired by the heroics of the mysterious mare known as the Stable Dweller, Silver Storm, a guard of the town of Marefort, decides to go on a daring mission to rescue her captured brother. Of course things rarely go as planned and her attempts at heroism drags her into a tangled web of plots and conspiracies as warring factions vie for control over the last great city: Dise.

Spanish Version translated by Spaniard-Kiwi: https://www.deviantart.com/spaniard-kiwi/art/Fallout-Ecuestria-Heroes-996263393

In an alternate reality, Discord found his love of chaos came in handy for babysitting young foals. For two thousand years, since he and the princess' were kids, he's babysat nearly everyone in Equestria. Now he's babysitting the cutie mark crusaders, and while he does he recounts with them his many babysitting jobs of your favorite characters as fillies, one by one.

Luna's isolation and difficult reentry into Equestrian life has left her without the confidence to communicate with the ponies around her. Especially the one pony she most wants to talk to. Celestia is angry, Twilight is upset and it's all her fault. Then she has an idea... She'll invite Twilight into her dreams. What could possibly go wrong?

Part 1: Lyra's Pyro Predicament
Part 2: Twilight's Demoman Devastation
Part 3: King Sombra's Robotic Retaliation

When a mishap causes two para-dimensional weapons to colide with one another, RED Team's Pyro is sent flying from the Team Fortress 2 universe into the alternate universe of My Little Pony, where he is almost instantly discovered by Lyra, who shelters him in her home.

Having him hidden in her small townhouse isn't easy; keeping him from setting things on fire, teaching him that not every cart that passes by is cause for alarm, and that blue ponies are not something to be suspicious of.

However, with Nightmare Night soon approaching, Princess Luna feels that there may be something more sinister riding on the coat tails of Pyro's grand entrance; the first human to ever set foot in Equestria some thousand years ago...

Twilight is granted the opportunity to show off some of her smarts by giving a presentation at the Canterlot School of Magic about life in and around Equestria. However, while she practices one of the transformation spells she got in a book from Zecora, she finds out a lot about the spell, but much, much more about her little dragon assistant.

Rainbow Dash finally did it! A sonic rainboom on command! Except she also managed to break every window in Applejack's farmhouse in the process. Now she has to pay for each one, and with her wages from managing the weather not nearly enough to cover the damage, she has to work on Applejack's farm for two whole weeks!
Talk about cruel and unusual punishment. Still, maybe it wouldn't be all bad. At least she would get to hang out with her friend AJ right? Wrong.

5-star featured on Equestria Daily.

Sequel: http://www.fimfiction.net/story/4620/Breaking-Barriers