Luna has returned to Equestria, but she is as cold and distant as the moon that held her captive. Celestia broods on her throne, regretting mistakes made and prices paid. Twilight Sparkle contemplates betrayal, and as her faith drains away, bitterness takes its place. And in the darkness, a relic of an ancient tragedy watches, his life consumed by greivances that he can neither remember nor forget. Betrayed and betrayers all, four ponies in need of a redemption that only one seeks. Will Honesty be enough to save them? Can one hoof, extended in trust and forgiveness, mend four wounded hearts?

Includes Applejack X Luna and slight Twilight X Celestia shipping.

With thanks to my editors, peppermint-roo.deviantart.com and sosweetntasty.deviantart.com

Written prior to season 2, so severely jossed by canon.

Celestia leaves to deal with a foreign crisis, giving her sister a chance to rule alone and become more attached to the modern world. She calls on Twilight Sparkle to advise Luna, hoping her student will be able to draw Luna out of her shell. With two major threats to Equestria already defeated in the past year, it seems like the perfect time to let Luna gain some confidence and experience in the modern world. After all, what are the chances of a third disaster occurring?

Now comes with complimentary tropes.

There was only one explanation. For all of it. All of the strange, erratic behavior. Her irrational fear of the sun. Her nocturnal habits of locking herself in in the dark and closing all the blinds. Wearing her sunglasses everywhere, even inside! It was time to invest in some silver, garlic, and a wooden stake.

Twilight travels to Canterlot to comfort Princess Luna. Thus she spends much time with the royal alicorn -- but not only in the living realm of Equestria. Strange dreams of the regal mare start to overtake her sleep, and soon Twilight realizes that the Princess is triggering feelings she has never felt before.

Can Twilight admit her emotions to Luna? If so, how? And then why is Luna turning into Nightmare Moon again?

Read and find out.
___

A/N: Fic is going to be a TwiLuna shipping (no clopfic).

Plus, the story may get dark/adventurous or sad, I'll add the categories when there is actually a part of that category in the actual story.

Twilight Sparkle just can't find enough time in the day. She has to study friendship for the Princess, hang out with her five friends, and juggle her own hobbies and interests besides. But when a novel solution presents itself in the form of an experimental new spell, will it solve her time crunch, or will she be distracted even further?

Twilight becomes alicorn of the stars. This is sort of a problem, because Luna kind of already was alicorn of the stars. Oops!

TV Tropes

Twilight ventures out into the mountains to see a once-in-a-lifetime event. Disappointed by her friends not coming with her, Twilight crosses paths with a kindred spirit.

Over the course of a thousand years of monotonous rule, Celestia no longer understands how to connect to ponies, and doesn't bother. But when Twilight Sparkle makes her bombastic appearance, the Princess cannot help be interested.

Featured on Equestria Daily, December 29, 2011

In a world where she sees from a distorted perspective, all Twilight Sparkle can do is cling to the one pony she knows will never let her down: her teacher, the princess... no matter which princess her addled brain tells her that is. Twilight's used to rewriting letters, but when she's the one being rewritten, she finds the sensation to be altogether different.

Many thanks must go to my awesome editors, Varanus, Ebon Mane, shortskirtsandexplosions, Seattle_Lite, and Nick Nack.

Featured on Equestria Daily and The Pony Fiction Vault.
Check out/contribute to this story's TVTropes page!

Her beauty, sullied; her wisdom, corrupt; my love for her, violated. But still I answer...

Summoned to the palace in the dead of night, Twilight takes up a burden that even her generous, loving soul may not be able to handle...

Humanized Twilight/Tyrant!Celestia.