Duchess Chrysalis is Princess Celestia’s personal student. Friendship comes easily, except when the recipient doesn’t want to be friends. Or of course, when the recipient has been replaced by a changeling.
An entry for Secrets: A Swapped Roles Contest
A universe where Twilight Sparkle is Queen of the Changelings and Chrysalis is Princess Celestia's unicorn pupil.

Dreams are a wonderful thing. They can inspire change or influence creativity.

An office worker by the name of Daniel finds himself returning home during a particularly strong downpour. He meets a strange bum sleeping on a bench beneath a covered bus stop. They have a stranger conversation and the bum offers to make a dream of his come true for a small price. Daniel laughingly accepts his offer, thinking it nothing more than the odd ramblings of a homeless man. He asks the bum to turn him into Zeus. Next thing he knows he was struck by lightning and sent to another world inside the womb of Rhea as she was ready to give birth.

Now it has been a few thousand years since all the myths and legends of Greek Mythology. Now, things have started to seem like a book series Daniel, now known as Zeus, always found to be a guilty pleasure. Percy Jackson.

Rainbow Dash & the Olympians -
The Parliament of Athena: Chapters 3 - ??

Spectra Shock, Iron Blade, and Cupcake Frosting are just normal ponies - until they find out that their teacher, Silver Lane, is not just a school teacher. They think that their lives are perfectly normal - and the discovery of their teacher's true identity can change it forever...

What's strange is the weird powers that the young ponies start to get. Then when Silver takes them to her "camp", the ponies there explain that everypony at camp is related to a god or goddess - including the three new ponies.

However, the three new ponies have discovered something else - that a danger is rising above all the gods and goddesses of Equestria. Shining Armor, the god of battles and defenses, has come to help the half-bloods train for the upcoming battle. But why do Spectra, Iron, and Cupcake keep receiving messages from Cadence, the goddess of crystals and marriage, to help Shining Armor? Somepony is behind all of this... but who?

(Labeled under "Romance" for parts between some of the ponies! X3)

The Princesses have kept a secret from the Elements, a secret that dates back to when they were born. Their parents aren’t who they say they are. They aren’t even from this world. Now the 6 must travel back to their parent’s world and train for a new adventure.
Percy Jackson/mlp crossover

Let me introduce myself. My name is Wrex, I was the lead mechanic of cabin 9. It's a weird name I know, but when you breed the god of blacksmiths with a truck mechanic, you get named after garage lifts. Anyways, It had been nearly two months since I entered the Labyrinth and, ended up in the outskirts of the Everfree forest, and aside from the few sightings from the town's foals, I've been able to get into Ponyville, take care of a pest, and get out safely. Why defend the small town from the beasts you ask? Why not Take off and, try to find my way back to camp? Well...It's kinda my fault their here.

our first fanfic! it would help to be familiar to the percy jackson universe to read this fanfic thanks, pic comes from rickriordan.com

Celestia and Luna didn't allow Discord to choose punishment for the Legion of Doom, after he had joined three villains and personified as Grogar. Twilight, after realizing that Discord will not be able to choose the punishment, she decides that she will try to reform the trio. It will not be easy. While she does this, the Mane 6 need to decide if they should forgive Discord after what he did.

In the alternate timeline where Sombra was not stopped, a human finds himself suddenly in Sombra's body... just after the dread tyrant has conquered Equestria. Now trapped in a world where just about everyone hates him, he must try to keep up the illusion that he is the villainous conqueror, while at the same time try to win over his new subjects.

However, this will not be so simple, as the real Sombra is not quite dead... and he is most definitely not happy.

Part of The Ocean Of Time series.

When Sunset realises that none of her human friends ever really apologised to her after the Anon-A-Miss incident, she leaves CHS to find better friends who wouldn't leave her at the drop of a hat. She eventually decides to go back to school, but is tripped on her way in and sent flying through the portal.

Instead of going to Equestria, however, it transports her to just outside of Camp Half-Blood.

Adventure and shenanigans ensue, as Sunset finds new friends and family at Camp.

Based off Percy Jackson, as well as all interrelated series, (Heroes of Olympus, Magnus Chase, Kane Chronicles etc.)

Set just after The Last Olympian.

I highly recommend you read the Percy Jackson books first so you know what you are getting into.

Sunset Shimmer is a regular pony-human. She has her friends, her school, and everything she could have wanted.
See that description up there? Yeah that was before the Manhattan field trip. She is no longer regular, she doesn't have her school, and she doesn't have everything she could want. The good news it that she still has her friends, along with some new faces.
Even better, she has a brand new Dad and family to join. Come see what life is like for her after she joins Camp Half-Blood.

This Story is a continuation of a story that already exists and was made by ThePoneDrome all credit goes to him/her!

When a powerful foe takes control of the changelings and griffons, and now appears to want Equestria in its clutches, the Element Bearers rush to fend it off. But just when they're about to strike, the elements are shattered and trapped in another world. Now, it's up to Twilight and her friends to find them, before it's too late. It wouldn't have been too hard, if not for the fact that they were stuck in the middle of a war between dragon tribes...

A crossover with Wings of Fire by Tui T. Sutherland.
Tags will change as the story goes on.