When the ponies came, they tried to convert humanity with words and kindness, saying that they were misguided beings and the princesses would help them on the path to Harmony. When that failed, the ponies tried the potion, only for it's magic to be countered by humanity's science. Then they tried force and failed completely at that.
Finally they decided to let the Barrier defeat humanity and it seemed to work! Nearly 50% of the planet was covered with humanity doing it's best to find a solution.
Unfortunately, the ponies of Equestria are about to learn a harsh lesson that humanity learnt long ago. The Earth can be paradise for those who tame it, but to others it is hell.

Tirek. Discord. The Changelings.

The ponies have faced all these threats, and triumphed, but things could have been handled better. Princess Celestia knows this better than most. She knows that to face threats even greater than Tirek, greater than Discord, the ponies need allies. They need friends to turn to when the chips are down and the mad gods and cruel tyrants are on the horizon

She and Princess Twilight Sparkle travel to the Griffon Kingdom to meet the Griffon King. They seek to negotiate a formal treaty, something more than a rudimentary "You stay in your yard, we'll stay in ours." If the Changelings invade, or Tirek is once more a threat, it will not only be the ponies standing against them, but the griffons as well. It's only logical, after all. The griffons and the ponies share a border. They share ideas. They share refugees and concepts and cultures. And there haven’t been any major hostilities since the Pony-Griffon War. That was almost a thousand years ago.

It is logical to enter an alliance, but politics aren’t always about logic. Sometimes they are about past crimes, mistakes, and tragedies. Sometimes, past grudges simply can't be let go.

(Rated Dark and Teen for some disturbing content, though nothing too heavy or overt)

Coverart from Pie on furAffinity

The Barrier: a naturally-occurring wave of magic that formed soon after the portal to Equestria appeared somewhere in the South Pacific, enveloping Earth with an inevitable tide that has destroyed all life on the planet, all despite the best efforts of man and pony alike. Now, the ponies are left to pick up the pieces and try to preserve what's left, while averting the vacant gazes of the mindless Newfoals left from one of their failed attempts to save what they could.

But there's one thing that all seem to have forgotten, from the ponies of Equestria to the strange multitudes of species in the universe with their sights set on Earth: and it's that you can't keep a good apex predator down. You can only hold them up a little while...

Special thanks to The Footsoldier for the OC, Elisa!

It has been one of the closest guarded secrets of Canterlot's royalty. Deep in a specially constructed dungeon, surrounded by warding spells and powerful magic barriers, exists an enigma. Within a cage that could only be described as something out of a nightmare, it waits and watches all of Equestria. A creature that cannot age, is immune to disease, does not thirst nor hunger, and resists all injury. But, it also holds secrets and knowledge that could safeguard the kingdom. Its powers are frightening, but it is civil enough for debate when patience permits.

Princess Celestia has sought counsel with the creature before, enduring it making deal after deal for its services. The Princess walks a fine line when dealing with it, knowing full well anything could give it an advantage despite its imprisonment. She has had to go back on her word in these dealings, and from this a deep animosity between them has been born. It is a necessary evil as she is convinced this is a being capable of untold evil far and above anything Equestria has ever dreamed of. So long as it remains within the confines of its cell, her kingdom is made safe. So much magic has been woven to ensure that, there is little chance of escape.

So long as the magic holds, there is no danger. So long as the cage remains strong, the nameless creature stays enthralled in his cavernous dwelling. If that were to change--if the magic failed--not even the wisest could say. But one thing is assured, it does not bode well for Equestria.

Idol Hooves holds a special place in Equestria. He's probably the only exiled changeling to serve in the Royal Guard, or at least, that's what he expects, as exiles don't really broadcast that fact. However, it's well known that Princess Celestia loves all of her little ponies, and her guards perhaps more so, and that makes it one of the best ways for a changeling to discreetly feed.

But how does a changeling even get there, let alone get exiled in the first place? For that matter, why would it ever go to Canterlot? Set a number of years before the series proper, before Luna’s redemption, Idol details how he was exiled, the ponies he’s met, and the series of misadventures that led him to joining the Royal Guard, and should continue a good ways into the series, as something of an alternate perspective.

Soon, he’ll have to deal with a boisterous new princess to serve and a royal wedding in the works bringing a third to power. Will his old instincts bring this new life crashing down around him? What precipitates Chrysalis’s ill-fated assault on Canterlot? Is it really so wrong for a changeling to enjoy good craftsmanship to an obsessive degree?

New cover art provided by the fantastic Carnifex

And a TVTropes page here.

And an Ask Blog of questionable canonity!
Out of Idol Curiosity

Fanart by Norad2! Major thanks! Short For a Royal Guard

Art by Egophiliac of Idol and his Daring Duckie Please don't tell him what that brush is meant for.

Rating updated to (T), it's a bit darker than (E)
Comedy Tag added as well
And changed the character tags a bit.

After a tragic accident, a human ends up in Lord Tirek's body, as part of an attempt to reform the villain after his recent escapades. While the hero of our tale is trying to make sense of his new surroundings, the rest of Equestria thinks that the most terrible threat that their world has ever seen is back...
And the powers that be are definitely not happy about it.
New Cover Art By Shadow Bolt

Please do check out the Reading List by Lance Omikron to navigate the Amalgam Universe most clearly

A massive war of titanic forces is taking place in the Kaiju's world. However, when two faction's leaders, the current Godzilla and his 'brother' Xenilla duke it out; humanity unleashes its most devastating weapon. Something beyond comprehension occurred and the boundary that divides worlds, if only for the briefest of moments, was torn to shreds. New forms are taken, new bodies assumed. But old hatreds die hard. But how well can hatreds continue in the world of love and tolerance? Especially with its own demons follow it there?

Godzilla Franchise by Toho Company Ltd.
My Little Pony is owned by Hasbro Studios.
This is a non profit fan-work and I claim no ownership on the IP itself.
Story created by Tarbtano
Co-created and Contributed by Faith-Wolff and Skylark8756

HOLY SHEETZU WE GOT FEATURED! THANKS GUYS!
6/27/2014
Now on TV tropes (Thanks Raidrik, VampyGirl; Lance Omikron, Ultimomant, and ZimFan!)

Kaiju Cast:

Godzilla a.k.a Gojira
Xenilla
Mothra
Anguirus
Rodan
Destroyah

[Character copyright of Toho and Daiei Company, artwork property of Matt Frank]

(for any G-fans, Xenilla is the kaiju you may know as Spacegodzilla. I changed the name because I got quirked about typing it repeatedly and am writing the story so it can at least be understood by just an MLP or just a G-fan; and thought it get very confusing that one character's name was just another character's name with an adjective. Also... don't pretend it's the most imaginative name Toho has every made)

He was an average man in nearly every sense of the term, but his entire life is flipped upside-down when a push for a paycheck turns into something unexpected...something much more. Marooned on an alien world with no known way home, how will he survive a potentially-hostile environment? Afraid, ignorant, and alone, he will be forced to adapt and survive, or seek out help.

Rated T for strong language, use of alcohol, violence, and suggestive situations.

A/N: Yes, there is romance in this story. No, I'm not referring to one-sided romances. Instead, most of the story is going to show the developing relationships between Jamie and those close to him, and you'll join him as he slowly and painstakingly overcomes a lifetime of human culture and morals.

Featured 09/18/2014! Holy horseapples, batmare!

Featured 06/13/2016! Thanks guys and gals!

This story is a sequel to What I've Become

It is highly recommended that you read What I've Become before you read this story, since this is the second story in The Humanity Within Trilogy, and you will be lost if you just plunge into this without any preparation.

Also, this story already has a sequel: What I Am!

Things have been turning up roses for me lately. I'm no longer fighting to survive, I have people that I can turn to, and I have my face back, all because of the kindness shown to me by strangers.
But will they continue to help me once they find out what dark secrets haunt my past? Will they shun me for the evil deeds that my abductors forced me to do while I was in their service? Will they continue to protect me from the monsters that destroyed my life, once they realize what kind of monster I really am?
How does one forgive a murderer?
WOOT! Feature the day it came out! (how did that happen?) 12/1/2014
Edited by Malefactory. He is fantastic at this kind of thing!
Proofread by Cantankerous. He's freaking amazing.
Also proofread by PhiliChez.
Cover Image done by the very talented PaintSplotch! You can find his FimFic account here.
And here is his DeviantArt Account!

This is the first book of The Humanity Within Trilogy. Its sequel is What I've Done.

I wasn't always like this, a monster, running through the woods on an alien planet. I was once a man. I had dreams, a girlfriend, and a great job.
Then They came. In the middle of the night, They scooped me from my home, and... changed me.

Now I'm a beast, a demon the like of which the world I've become stranded on has never seen before, scraping by on the fringes of society, hiding from the natives, and doing my best to avoid notice.

After all, who could ever be friends with a monster?

Cover Image done by the very talented PaintSplotch! You can find his FimFic account here.
And here is his DeviantArt Account!
Now 100% approved by Twilight's Library!
Mad props to my prereaders:
ThatPonyWithASword.
Admiral Applejack.
JXWheeler