I am now Princess Luna, and it’s not as fun as you might think. I don’t know what’s going on, how I got here, or what I’m going to do. Princess Celestia thinks I’m crazy, that I’ve lost my mind…

But something tells me I’m stuck here… so one way or another, I’m going to have to get used to this new life. Now if only I could figure out this stupid Magic stuff...

Story by Pinklestia with the collaboration of Rainbow Sparkle for the first three chapters.

This story is a sequel to Tantabus Communication Protocol

What started with laziness and a tiny slip-up in arcane intelligence creation has blossomed into its own being. With Luna's blessing, the second Tantabus is free to flit around the dreamscape as it pleases, unburdened by oversight. And what pleases it is making good dreams. Who couldn't be happy by making others happy?

As the Tantabus settles into its life, its horizons keep expanding, forever revealing more of the world and of ponies. There's always new things to learn. New dreams to spice up. New nightmares to beat down. New ponies to help. New ponies to annoy.

Don't tell Luna about that last part.

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

A young girl, having been robbed of her childhood and very life by illness finds herself given a second chance in a strange world and with an even stranger body. With a new life, family, and even a brother, she tries to cope with the bizarre world she's found herself in while also trying to embrace her role and become worthy of the gift she has been given.
Being a princess can be hard however, even if it's only an honorary title, especially when you're the twin sister of Prince Blueblood.

Warning, very slow burn.

With Equestria's magic back where it belongs, Twilight's school continues with its lessons into the Magic of Friendship. With classes finished for the day, however, Twilight decides it's time she finally investigated the chambers beneath the school. There she will have the chance to talk with a being she'd only dreamed of getting the chance to talk to:

The Tree of Harmony.

Proofread and edited by RQK.

The Rainbooms decide to take a day trip to the local zoo.

(My entry into Aragon's Comedy Is Serious Business Contest.)

Rarity was sure she'd failed Prim Hemline in creating a suitable window display for Carousel Boutique—only to find the most beautiful of artworks in those same windows the next morning. Even more surprising: Sunset had painted and arranged them.

A most wonderful turn of events, as far as Rarity was concerned—with just one problem.

How did Sunset manage to paint the window displays of a closed boutique overnight?

Part of the Montage Cinematic Universe.

He has been waiting for this moment since his teenage years. Investing in the stock market, taking risks with bitcoins and multiplying his assets whenever he could.

It was far from easy, but he made it; he's got enough reputation to book an interview with the Borealis Development Team.

His objective?

Convince them to build a real unicorn, the unicorn of his dreams; his very own Starlight.

When Starlight Glimmer cast her spell and shattered the bonds connecting the Elements of Harmony, she inadvertently created a cosmic crack that would have further reaching consequences than she could ever imagine. The consequences of her actions rippled across time and space, shattering the very destiny of existence itself. The only thin string holding the universe together now is Twilight Sparkle, the representative of the Element of Magic and the Princess of Friendship. But with destiny already defied, how can she hope to pick up the pieces of a broken reality?
Well, starting with helping her other self might help.

Cover art created by myself. Shoutouts to Vebuzurr for being my proof-reader.

As Starswirl the Bearded ponders what stayed and what was forgotten on Hearth's Warming Eve following his disappearance, he finds that his two pupils might have forgotten him.

[Set after S7 finale]

Written for Eroraf89 via Petrichord's 2017 Jinglemas gift-fic exchange event.