It's nearing the summer sun celebration, one year after Twilight arrived, and things are not going according to plan.
Preperation is behind schedule, supplies are still needed,
And to top it off, Twilight has accidently turned her friend's pets into ponies!
Without an easy antidote and time growing short, the mane six decide to let the pets help them in the celebration.
And they'll need all the help they can get.

Derpy Hooves is secretly a changeling.

Nopony particularly notices, or cares.

(New 9/15/19: Spanish translation by Spaniard Kiwi! Thank you!)

Twilight Sparkle is officially bored out of her skull. So bored, in fact, that when Fluttershy asks her to attend a dead squirrel's funeral, Twilight can't help but say yes. She's never been particularly fond of the late Mr. Acorn, but with Fluttershy almost in tears, and nothing better to do... well, what are friends for?

A collaborative work with the ever-marvelous Donny's Boy.

Part 1: Lyra's Pyro Predicament
Part 2: Twilight's Demoman Devastation
Part 3: King Sombra's Robotic Retaliation

After receiving a strange book from Pinkie known as "The Bombinomicon", Twilight wakes up one morning to find that the mystical tome has been stolen, by...Twilight?

Things quickly unravel as RED Team's Tavish DeGroot (Demoman) and Spy find themselves not only trying to get back home, but also fighting for their lives as villains from the Team Fortress 2 universe combine forces with some of the most dangerous foes Equestria's ever seen!

Many years ago, shortly before the birth of one Twilight Sparkle, Celestia, ruler of Equestria, found a small item in a forest. That item? An egg. Around the same time, in another place, Celestia, ruler of Draconica found something small in a forest. That thing? A pony.

Art(C)me
Ponies(C)hasbro
dragons(C) ?

Twilight isn't having a very good day. An experimental spell blew up in her face, an army of changelings is attacking Canterlot, and she just died. Yet somehow, it looks like it's going to keep going downhill from here.

Given the chance to correct what's gone wrong, Twilight swears she's going to fix all this even if it kills her. Which it will. Frequently.

Cover art by Pixel Prism
Spanish Translation
Series TV Tropes page

The changeling invasion of Ponyville and the events preceding it were witnessed by many. However, how and why did it happen? Who were the key players involved? Through the eyes of General Carbon, High-General Double, and even Queen Chrysalis herself, these questions and more shall be answered in a series of tales that go as far back as the first changelings and the tragedy that created them...

A side-story compilation companion to Smoke and Mirrors.

This story is a sequel to Past Sins

Hearth's Warming is a time for friends and family to come together, celebrate harmony, and welcome the new year. Nyx is looking forward to just this as she rides the train to Canterlot with Spike and Twilight. She's going to meet her extended family for the first time and wants nothing more than to make a good impression. Yet, the sheen of the holidays can't hide the trouble caused by meddling grandparents, relentless reporters, and a paranoid uncle.

After an accident, Rarity and Twilight are thrown in a race against time to stop their transformation into changelings before they become part of Chrysalis' swarm forever.

This isn't where I belong. I left all this behind years ago, moved on with my life. But a mare from my past brought me back, and now she won't let me go. So I'm stuck here, trying to make the best of it with ponies that don't understand me, don't even like me. But when something moves in the darkness, and when things go wrong in the cold, dead night, they'll turn to me to try to set things right.

Why? Because once a police pony, always a police pony.
~~
This is a spin-off story to 'Why am I Pinkie Pie?!', and will contain spoilers for that story, but it's not necessary to read that story to understand this one.
Cover art by the talented Conicer
Need more Cinnamon Swirl? Merlos the Mad wrote a fanfic of this story!

There is now a side-story: A Hard Day's Nightmare Night