Every scholar wants to discover a new fact, something true and constant that changes the way they see the world. For Twilight, that discovery might come from a place she never expected. . .

(Proofread by DbzOrDie, who's patient enough to be my friend even when I forgot to credit him at first.)

Applejack has gone through a lot in her life. She's lost family, been a primary caregiver, even had a few massive shifts in her identity... And she's still standing. She's still here.

But is that enough?

Twilight Sparkle has too much magic, and it will take her decades to learn to control it. Her spectacular loss of control during her entrance exam only proves that fact. She is a danger to herself and others.

After Sunset Shimmer’s disappearance, Princess Celestia needs a new student to bear The Element of Magic to defeat Nightmare Moon. With all of Equestria at stake, Twilight Sparkle…is not the pony she needs.

Princess Celestia seals Twilight Sparkle’s magic with the distant promise of one day teaching her.

But there are two diarchs of Equestria. Amidst a lucid dream, an offer is made.

“Hello, Twilight. Would you like to be my student?”

Cover art provided by Lafiir.

This story is a sequel to A Meeting by Moonlight

Late Season 3, immediately after A Meeting by Moonlight.

After her emotional revelations to Twilight Sparkle, Princess Luna returns to Canterlot uncertain of her feelings, her place in the world, and even her identity. Does she love Twilight Sparkle as a friend, or want her as a lover? Does Luna, herself, really have any place in a world that has changed again and again out of all recognition during her long life in this incarnation alone, let alone compared to the Age of Wonders?

Is she Princess Luna? Nightmare Moon? Moondreamer? The pitiless Cosmic Principle, to whom little ponies are nothing more than worms crawling the face of an unimportant speck in spacetime? Who is she really, and what does she really want?

Her big sister tries to help her feel a bit less adrift.

This story is a sequel to Teacher Zero

Mid-October, YOH 1503 (Season 3, between "Spike At Your Service" and "Keep Calm And Flutter On"):

Celestia calls Luna to her chambers to tell her about Celestia's new and dangerous plan. What will Luna do, now that her time to do it may be running out?

October 3rd, YOH 1501: In the aftermath of Twilight Sparkle's mental breakdown (shown in S2E03 "Lesson Zero"), a shaken Princess Celestia reflects on how close she came to losing her Most Faithful Student, and wonders where she herself went wrong.

This story is a sequel to Advance Warning

Late Season 3. Twilight Sparkle is moon-gazing, when she receives an unexpected visit from Princess Luna. The dark Princess tells Twilight of the Moon, and a long-forgotten tale of the Age of Wonders ... and how the ponies of that time achieved greatness, yet ultimately failed of their true promise. Inspired by the PonyPOV fanon.

Now has a TVTropes page here.

A flip of a coin. A twist of fate.

Twilight Sparkle, younger sister of Princess Celestia's personal student, Shining Armor, grew up listening to her brother's bygone dreams of joining the elite of the elite: The Royal Guard.

Now, fresh out of the Academy, this young mare is ready to prove herself equal to the deeds of the great soldiers she read about as a filly. Too bad the princess she ends up protecting isn't Celestia.

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

One day, Twilight Sparkle discovers something amazing about her friend Sunset Shimmer.

She's a magical talking pony!

This requires investigation! Science! Possibly a full-body physical!

Or maybe Twilight will just ask her what's up with that.

Rated Teen for frank discussions about... y'know.