Coco Pommel has a very important order to fulfill. She is making some very important costumes for a play. It's huge honor and opportunity for her first real job to be working for a theater. These costumes have to be perfect or at least complete by the time the play starts. It would be even better if the actors had time to rehearse in them before the play times begin.
The stress and excitement made her stay up late still working on the costumes when she heard something strange outside her window. Peeking outside Coco doesn't see anything at first, but there is definitely some movement in the night sky, especially these few strange stars. One of them seems to be coming closer, but upon closer inspection, it's not a star but a huge box flying straight at her with a light on top of it.
"A falling star would be better, you can wish on stars," sighed Coco, "oh well, back to work for me."
In the last second Coco snapped out of her sleep deprived insanity and dodged the object crashing through her window.
There are no words, this glorified magic wardrobe just flew through a wall and destroyed the dress Coco was working on. The big blue box thing seems to be standing up properly according to the words "Police Public Call Box" right above its doors.
This situation makes no sense for Coco, maybe it's a dream. Just as she thought that, the doors opened and a gray mare peaked out. She had a yellow mane and very unfocused eyes that seemed to look in both directions at once, they might be looking at Coco but that's hard to tell. What captured Coco's attention was a white shirt mare was wearing that had two question marks on its collar.
Coco stared at the mare expecting an explanation for what is happening in the middle of her workroom. The mare stared into space for a strangely long amount of time. Ignoring Coco, she disappeared back inside the box.
"Hey!" cried out Coco and ran inside the box.
Inside of the smaller box was a spacious white room decorated with white circles. In the center stood a a very sciency looking console unit. The unit had buttons, screens, switches and levers; plus there was a weird moving pillar in the center of all that. This console is probably what's keeping the unicorn magic that makes the inside bigger then the outside, thought to herself Coco. She also noticed a door open, from the other side came sounds of the mysterious pony running around making a mess and doing typical mysterious pony stuff, that is to say, no idea what she's doing in there.
The pony finally appeared and spoke with relief, "She's safe... am I?"
"Excuse me?" said Coco, trying to get the mare's attention.
Suddenly the mare gazed at Coco very intently and started circling the console unit. "Who are you?" she said.
Trying not to get trapped by the mare, Coco started circling the console as well. "I live here. Well, not here but out there. The place you... crushed into?" she noticed more features of the mare. She had a hourglass cutiemark and a hump under her shirt.
The mare's unfocused gaze began to focus on Coco and both eyes slowly started to look right at her, "How did you get inside the TARDIS?"
"The door was open?" said Coco, starting to sound less sure. Maybe she made a mistake and the mysterious mare should have been left alone?
"I know who you are and what you're doing here," said the strange mare with more emphasis on some words more then others, "You're a spy and you broke in here."
"What?"
"It's your perfect chance, to kill me right after regeneration," said the mare as Coco noticed herself being right next to the exit, "But you've failed, and this mistake will be your last!"
The crazy pony lounged at Coco as she tried to dodge. Coco somehow made it and ran outside the TARDIS. She left the room also, and slammed the door behind her. She then ran down the hallway and grabbed the stick she keeps next to her front door. With the stick at the ready she peeked inside the room where all the madness was happening. She saw the crazy mare completely destroying some sort of red flower by biting it and bashing it against everything while growling and taking down the rest of the workshop with it. Coco checked the back of her head and noticed that her favorite hairpin is missing.
Fueled with righteous anger, Coco ran into the room and started assaulting the mare with a stick. This made the crazy pony stop and even... start crying?
"H-how can you be so mean?" she asked with tears in her eyes.
Coco became even more confused and just then she heard ringing and banging on her door. This thing is the last thing she wants anyone to see. A crying pony in the midst of all the destruction in the middle of her room. She ran to the front door again to see who it is.
"What is it?" sing-songfully said Coco trying to hide the fact that there's anything weird going on here.
"Coco, are you alright? What are these noises? Open up!" said the voice from behind the door.
"All is fine so don't worry about anything. Go awa-ay!" No one would buy tha-at.
"Coco, open up!" tried the voice again.
"Go back to bed! Are you trying to wake the whole building! I still have a lot of work to do! Argh!" yelled Coco at the door and went back to check on the mare.
Coco peaked in the room and saw the pony calmly admiring one of the unfinished designs. Feeling being watched, the pony loudly exclaimed: "Yuck!"
"Please just go away..." said Coco on the verge of breaking down herself.
The pony looked at Coco and started to cry again. I'm the one who should be crying, thought to herself Coco. She walked up to the mare. "P-please don't cry." that didn't help. "Would you like some snacks?" the mare looked up and nodded. "Okay! Don't move!"
Coco ran back to the hallway, grabbed a new less favorite hairpin from the hats and bows closet, and went to the kitchen. After a few moments Coco came back with some milk and muffins. She gave them to the mare who promptly started stuffing her face.
With the last muffin was gone, the pony's pupils dilated and she dropped the empty glass of milk. As the pony stared into distance, or even infinity, Coco contemplated upon where her life was going.
"I know what I must do now," spoke the pony.
Coco watched helplessly as the pony ran back inside of its crazy box and started pressing buttons. "Oh, I almost forgot to tell you the most important thing," said the pony and stopped, "They call me The Doctor."
Clearly aiming for the big switch with a red ball on it, her hoof missed and she bashed a few buttons right next to it. Keeping the eye contact through the still open doors, The Doctor and the TARDIS started sliding towards the big hole in the wall while loudly leaving big scratches on Coco's floor. With full confidence intact, while taking another big chunk of the wall with them, The Doctor and the TARDIS fell ten stories down and bounced off the building across the street and continued falling towards the few onlookers down bellow. Coco stood quietly in what used to be her workshop while listening to distant screams of ponies and pounding on her door.
The room is a mess, pieces of rock, glass, and such are scattered all over the floor. The wall is missing and so are few of her things. This must be a dream, and if it's not, then this is the perfect time to finally faint from exhaustion.