Description: Two years after the camps opened up, the Western Territories of the USA are nearly vacant. It is once more a frontier, ripe for exploration and settlement. On bequest of Princess Celestia, Twilight Sparkle is to experience the human world by joining a family of Pony Settlers on their journey out West. It's Dangerous to go alone however, so in an act of good will, the US government is sending someone to make sure no harm befalls the ponies.

Memories of a time long gone by hold the key to Luna's salvation. To save her sister, Celestia sends Twilight on a quest through Luna's mind, searching for the source of an ancient spell that is slowly killing her. What she finds may change her forever.

Twilight experiences Luna's life first hand on an emotional journey through the dark alicorn's past.

This story is a sequel to Off The Edge Of The Map

When Twilight is sent with Luna on a diplomatic mission to Draconia, they quickly find themselves somewhere that doesn't appear on any map, and Luna is lost in more than one way...

Thanks to RBDash47 of Pony Fiction Archive for formatting it for submission.
Title image by Valcron

Tremendous thanks to Illya Leonov and Scribbler for the Audiobook version.
Now with a Spanssh translation by SPANIARD KIWI: https://www.deviantart.com/spaniard-kiwi/art/Apoteosis-2-3-857110089

When Moonage Daydream, the loudest, most dazzling Pony Rock star in all Equestria, pays a visit to Ponyville, almost everyone is excited — except Twilight Sparkle, who just wants a quiet, dark place to do some stargazing. But when Princess Luna shows up and offers to help, will her solution be worse than the problem?

Yes. Yes, it will.

Now with a Spanish translation by Spaniard Kiwi!

Note: This was originally written between Seasons 1 and 2, and may ignore conflicting lore established by Season 2 or later. THIS IS REALLY OLD WHY ARE YOU STILL READING THIS

Twilight Sparkle and her friends are snowed into the library one evening, and they happen upon that rarest of specimens - a book Twilight doesn't recognise. However, the ancient tale of adventure and intrigue they find inside ends up shattering their worldview and sending them on an adventure of their own.

This is basically what came to my mind when I heard that Lauren Faust's original concept for the show was of a more arc-based, magical girl style (this turned out not to be true, but my mind ran with it anyway), but this story ended up a long way from magical girls and well into high fantasy by the time I started writing. Also draws on select Homestuck and Dungeons & Dragons themes, and plays with a lot of things the canon leaves unexplained.

Tag update: Reduced character tags to Mane 6, CMC, Twilight Sparkle and Rainbow Dash. While the Mane 6 and CMC provide most of the ensemble cast, Twilight Sparkle and Rainbow Dash are the primary viewpoint characters.

Additional Tags: Anthro, conspiracy, high fantasy, gryphons, war.

Sequel now posted!

Twilight makes a wish on a star, Luna sees an opportunity. The two end up living each other's lives for a day

Rainbow Dash attends her hometown's Millennial Summer Sun Celebration, where she meets a peculiar pink pony. When a strange portal appears during the testing of Twilight Sparkle's latest invention, and pulls their new companion inside, the two friends give chase and embark on the most important adventure in all of history.

Equestria Daily | TVTropes

Having returned to Canterlot for official purposes, Twilight and Spike grow increasingly ready to go back home to Ponyville. Yet, when Twilight recognizes signs of distress in the Sister Sovereigns, the princesses Celestia and Luna, her curiosity gets the better of her.

What she finds shows her more about her teacher than she could have dreamed...yet places her in tremendous danger...

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