With tryouts for the Wonderbolts just a few days away, Twilight Sparkle decides to find the perfect coach to train Rainbow Dash. Unfortunately, the pony she finds is Rainbow Dash's male counterpart. Can they get Rainbow Blitz back home where he belongs, before anything too crazy happens? And what about poor Rainbow Dash, trapped in the Stallion World?

Applebloom stood on the platform, watching as the train pulled to a stop. It was one of the newer stations, installed by order of Celestia a few years ago. It still had that new train station smell, which is much like new horseshoe smell only with a great deal more coal. It must at this point be said that there was nothing wholly remarkable about the train station, or for that matter its rather cheerily painted trains. But at exactly one in the afternoon something wholly remarkable was set to occur.
She felt the weight of the one way ticket in her bag.
"All Aboard," called the porter.

Into the Everfree we go.

It's not terribly easy being a pear selling pony in an apple loving town....Forelle is a pear pushing pony from Roam, here to help her family out and find her way in the world. This is what happens to her in the course of an average day.

Forelle created by Egophillaic

(Oh neat the update made the featured bar, thanks everypony!)
-Squeak

-Squeak

In the beginning when there was nothing, the Universe was alone. There was darkness in every direction, and this left her with no one to talk to. There was no sky, or ground or cups of tea, or in fact even a planet on which to have any of those things, just the emptiness of the void.
The Universe was lonely.

Traveling between parallel universes is impossible, especially during the process of regeneration, but the Tenth Doctor doesn't have time to question the facts. He's just been thrust through a tear in the fabric of reality, gotten a new body, and landed on a planet called Equestria. Specifically, he's landed in the worst possible place in all Equestria – somewhere that's ready to unleash a “big ol' storm of chaos”.

That's just the beginning of the Doctor's strange new lease on life: there's a whole host of mysteries to explore. Who is Derpy Hooves, the gray pegasus who understands more about him than even she knows how to explain? How does Princess Celestia already know him? And what's the truth behind the Order?

Above all, the Doctor needs to discover if this new universe can heal the wounds he suffered in the last. Only one thing is certain: there's an awful lot of running left to do.

(Warning: For those of you who haven't watched up to the Doctor Who episode 'The End of Time'... spoilers. Also, this story begins between Seasons 2 and 3 of FiM, and things start to... diverge from there.)

Side stories can be found at The Merely Mundane Tales (of a Mad-Pony in a Box).

Derpy is clever mare who wants nothing more than to get the respect she deserves in a field dominated by unicorns. She's tried so many times to enroll in the Royal Canterlot Acadamy of Science, but every time, she's rejected before she even makes it to the interview stage. Could a chance meeting with a most unusual Doctor turn her luck around? Will everything go wrong? Or will it be more right than ever?

The Doctor has spent his entire life running, and when his life comes close to an end, something happens that allows him to avoid running from Death itself. Thrown into an alternate universe, The Doctor has learned to exceed his regeneration limit and continue as many times as needed. His journeys are just beginning as some old 'friends' are thrown into the alternate universe along with him.

After traveling with the Doctor for so long, Derpy Hooves must accept that her adventures have ended and she must return to a normal life.

Artwork by =saturnspace

No matter, Derpy just smiled and ate her muffins. Her life changed when she met Doctor Whooves.They all tease and make fun of her. Call her a klutz and mock her. But he doesn't. He just smiles and holds out his hoof and off they go. Into his big blue box of mysteries and adventure.

Applejack and her friends have been travelling with The Doctor for almost two weeks now. Unfortunately, the TARDIS needs to refuel, so they return for a quick 'pitstop' in Ponyville. However, an ancient evil is not only threatening the town, but also the consciousness of The Doctor and his friends.

Sequel to The Regal Sisters.