Princess Celestia has a bit of a problem that only a shapeshifter can solve (probably).

(Obviously inspired by Skywriter's "Princess Celestia Hates Tea".)

For years, Twilight Sparkle and Queen Chrysalis have been at each other's throats. Both have experienced victory over the other, and both have experienced defeat. Out of all the creatures in Equestria, none despise each other the way the pony Princess and changeling Queen do. They seemed destined to remain locked in battle forever, or at least until one is finally dead at the hooves of the other. The cruel insults, the vicious loathing, and the powerful spells that have passed back and forth between them at each meeting have become the stuff of legend.

Imagine Twilight's surprise when she finds out changelings consider this dating.

And now they're married.

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Sequel: Pony Courtship Rituals

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Some beautiful fanart of the end of chapter three was done by Dmann892; you can see it here.

More awesome fanart, this time from chapter one.

Now with a TvTropes page (obligatory TvTropes warning goes here).

If you want a Russian translation, you can find it here.

There is now a reading of the story on Youtube, which starts here.

The heart. Such a mysterious source of power. Those with weak ones soon find their hearts lost to darkness. Those with strong ones have shown to unleash the most powerful of lights. But what makes a heart strong? What makes the darkness so attracted to it? I must know.

Twilight. Applejack. Rarity. Rainbow Dash. Pinkie Pie. Fluttershy. These six posses the strongest hearts in all of Equestria. They may show me the answer to my questions. But to unlock the secrets within them, I will need a key. A key that no one will miss if it vanishes...or perhaps, a key that no one knows to exist at all. I need a keyblade. I need her.

Xion will be based on her game and manga counterpart.

Uncle lives a very fulfilling life at his antique shop. It's peaceful and quiet for the most part, just how he likes it. Of course, he's a skilled chi wizard, so he knows better than to actually let the universe know that he's content. So he complains.

A lot.

Then one day, a basket containing three infant magical ponies arrives, and his peaceful life goes out the window...to be replaced with, perhaps, something a little more than contentment.

The universe, apparently, is smarter than he gave it credit for, because now he has "Three More Things!" to complain about to hide just how much they mean to him.

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Part of the PWNY-verse.

First chapters take place approximately 10 years before the events of the first episode of the show.

Edit: Cover Art put together by Shadow Bolt
Edit 2: New Cover Art by Swan Song. Link to his page in image source.
Edit 3: Level Dasher commissioned an image of the CMC with their new Cutie Marks from Katakiuchi4U over on Deviantart. Here's the pic!

One day, just like that, Twilight decides she's going to die.

Edited by Pearple Prose, MrNumbers, and Themaskedferret.

A hag: someone with the power of nature, to use as they see fit. Sacrifice, and deals, power at a price, and more defines them. It is a hard thing to be a hag, and a harder thing to deal with them.

So when one of them, old and only partly wise arrives in a land that has no hags, she is confused. Lost. Upset. She does not know Equestria, and makes assumptions that are not wrong...

But not wrong doesn't mean right. It only means that you might be able to understand how the assumption could be considered correct. So, how will the hag deal with Equestria? A friend? An ally? An enemy? Its doom? Any of the above, willing or unwilling, knowing or not knowing? Everypony has their own opinion. Time to see who is right.

This story is a sequel to For science

The continuation of Stella's and Twilight's Story. (read book one first)
We will take a look at Cadence's past and have some extra science as a bonus