DW: The Arrival of The Doctor.

"Ah, there we are." He said pushing the door up to it's original spot. "We're here."

Carrot Top was shaking as she got back on solid ground. That was probably the single most terrifying experience she had ever witness in her life.

"Something the matter miss Top?" The Doctor asked.

"I'll be fine just give me a minute." She said.

"Yeah, first time flying is always something, but you seem to be taking it very well. I remembered my first time, I was shaking and scared much like how you are right now." He said with a small chuckle. "You'll get use to it though. Now, let see if you're good as new." He said sliding something out from his collar. Reaching, he pulled out a small metallic object that looked like a pen of some kind. Though it was much more thicker and it had a small glass bulb at the end. "Ta-da." He said presenting it.

"What is it?" She asked.

"This madam is one of the finest instruments in the known galaxy. It can unlock any lock, door, and trap thats thrown my way. It can also register anything that I scan it with. It's a sonic screwdriver." He said with pride. He clenched it between his teeth and moved it around till it began lighting up, followed by a buzzing sound. "See." he muffled.

"So it's like a wand of some kind?" She asked.

He spat it back out. "No, no this is much better than any wand. Though it will take time getting use to using my mouth to operate it. So all better? Good! Cause we got ourselves a zygon on the loose."

Carrot Top picked up the screwdriver for him. "A what?"

He took the screwdriver and clipped it around his collar. "A zygon, big, puffy, pink alien that can shift it's apparecne into anything or any creature it wants."

"Wait so it can change it's appearance, like a changeling?" She asked.

The doctor frowned a bit from not knowing what she meant. "Sorry, I haven't had the pleasure of knowing theses 'changelings'. What are they and what do they do? Come now don't hold information from me!"

"Well, there kind of like an insect creature. They can fly and they can trap there victims in this slime substance. The point I was making was that they too can change there appearance, but they do it for usually one purpose." She said. "This is weird, me teaching you something isn't it?"

The Doctor smiled. "I know it's weird for me to, go on."

"Well they usually find somepony that another pony loves or cares for deeply. Then they take the place of said pony and begin to feed of the others feelings. It's there food supply basically." She finished.

"Huh, fascinating." The Doctor said. "That's scary close to a zygon but minus the whole feelings part."

"So whats the big deal with this 'zygon thing' anyway? If it's not hurting anypony then why are we looking for it? She asked.

"Cause nowhere else in this universe has a zygon been spotted except here. Nowhere else, no point in time of history has your galaxy every had a a zygonic spices. Till the other day when I turned on the ol' radar and it began picking up it's genetic code." The Doctor said. "That's why I want to go after it, to question it. How did it get here, where, how?" He said. "And maybe I can get back to my universe where he came into this one." He mumbled to himself. "So lets go."

"Wait you said this thing can travel, so where did we go?" Carrot Top asked. It was to late, he was already whirling around the small place. "He doesn't skip a beat." She sighed. "I thought you said this thing can travel through time and space! All we did was move from my house to an alley in the center of town!" She said looking around.

The Doctor stood at the end of the alley way. "I know, the zygon is in your town. Plus I needed the Tardis's radar to be able to project in the best spot possible."

"So how are you going to catch this thing?" Carrot Top said joining him.

"Thats a very good question, even if the radar that I patched together finds it its going to be very hard. Zygons are nasty creatures and don't do to well with others messing with their buiesness." He said taking out his screwdriver. "Though I am guessing that it is staying close to the center of town."

Carrot Top looked at all the passing ponies faces "Why do you think that?"

"Most tactical, place is aways busy, it can basically choose who it wants to be and snap." He said.

"It could be anypony." She said.

"That's what makes them scary, you spend your time around others and all of the sudden they could be a nasty alien." He said. "One second." He clenched the screwdriver in his mouth and aimed it around. "Though I know that it's in that shop over there at the moment." He muffled while pointing.

"Oh, no." Carrot Top gasped.

The Doctor looked at her. "What?"

"That's Sugarcube Corner, I know the owners there. What if this thing is in there? I mean how dangerous is it? We have to tell them, come on!" Carrot Top said almost begging to run.

She was pulled back by the Doctor. "Hey now listen to me. I promise that as long as I am here no harm is going to fall on to anypony. You got that, I promise. Now we can't just go rushing into the place. So lets go in calm and collective." He said walking towards the place.

She reluctantly followed but the thought of something terribly going wrong lingered in her head. The two made it to the doors and before she could say something he rushed in.

"So much for calm and collective." She said to herself.

The place had a good amount of costumers, all waiting to pick up orders. Carrot Top tried getting the Doctor's attention but he was already at work. He went around at each pony eying them up and down. Soon he took out his screwdriver and began aiming it at each pony.

"Morning Carrot Top." Mrs. Cake voice called. She was placing a load of boxes on the counter as she came into view. "56, 57, and 58!" She called out.

The owners of the numbers quickly came and took they're items. Before they left though, each one was greater by the Doctor one last time. Scanning them, he obviously found nothing for he kept frowning.

"The rest of your orders should be up in a few minutes everypony, sorry for the unusual wait." She said. "So what brings you in on this busy day Carrot Top?"

"Busy? I mean no offense Mrs. Cake, but theres only 5 other costumers here now." Carrot Top said trying to keep an eye on the Doctor, who was now getting on everypony's nerves.

"It's just been a long couple of days you know? The twins have fallen under a cold of some kind, and they've been crying around the clock. Today has been the only time where they seem to have gotten better but then Mr. Cake has also gotten sick. I told him to go to the doctor's yesterday. He finally went this morning, in fact he should be getting back any time now. So I had to get up extra early and put in double the work." She said. "It's not to hard but I'll manage."

"Isn't Pinkie Pie around to help?" Carrot Top asked.

Mrs. Cake shook her head. "Unfortunately she's off helping her friends or something, but don't worry dear I can manage by myself just fine."

The Doctor rushed to the counter. "Excuse me did you say that your husband was sick?"

"Well hello Mr. Turner, what brings you in?" Mrs. Cakes asked.

"Actually it's just Doctor." He said.

"Oh wow, I had no idea you had an official degree. Since when did you get that title Doctor Turner?" She asked.

"Oh god, that worse than being called Turner." He mumbled before Carrot Top nudged him. "Your husband was sick was he?"

"Yes, he had a fever and he went to the doctor's office, though it's quite all right I am sure." She said with a smile.

"And the little ones also were suffering? Were they having trouble breathing, like how one does when smoke is in the room?" He asked.

"Um, I guess? Though one can usually spot a stuffy nose when they dealt with them before." Mrs. Cake said sarcastically.

"Right." The Doctor said turning around. "Mrs. Top, a moment please." He said heading for the door.

"I'll be back later Mrs. Cake." Carrot Top said following after him.

As soon as they were outside, The Doctor quickly whirled around. "That Zygon is using Mr. Cake as a disguise."

"What!" Carrot Top exclaimed. "I mean how do you even know that?"

The Doctor went and looked in the window. "All of them are normal, just plane ponies going about they're day. Yet only one could be it. I have connected the screwdriver to the Tardis's radar. If it had left the town or building I would have dictated it." He said examine his tool. "Mrs. Cake mentioned that her husband wasn't feeling well the other day, first the twins right? Thats usually a sign when a zygon is near, he must have been narrowing down a identify to have. Being near strange lifeforms, unknowing of the bacteria he could carry must have caused the sudden ill feelings. Though why a cake shop owner? Why not the mayor, or somepony besides a cake shop owner?" He said. "He's in near now and he is Mr. Cake."

Carrot Top paced around neverously before responding. "This is all strange, I mean you said that we never had a creature like this in are universe. So why is there one here now? How did it get here?" She said bitting her lip. "Also notice how Mrs. Cake called you Turner to."

"I haven't the slittiest clue about that, remind me to stop by this 'Turner's' house on the way back. As for the zygon getting here and now, I must confess the latter of which I don't now. The only thing I know is the faster we catch it the more answers we can get." He said trying to sound hopeful. "Now lets go catch us a zygon."

"Right." Carrot Top said with a smile.

The Doctor was about to say something until a loud bang rang out from behind the store.

"What on earth was that?" He asked before taking out his screwdriver. A loud beeping noise was now ringing from like a pulse from the device. "It's the zygon, come on." He said grabbing Carrot Top by the hoof.

The two raced to the other side of the building and stopped just short of turning the corner. Another noise proved that whatever was back there was still present. Swicthing something on the device, The Doctor gave Carrot Top a look that showed that he was about to take action. He slowly motioned his mouth to say 'one', 'two' and finally 'three'. Yanking both her and himself, they stepped into the clear view of the alleyway.

"Oh hello Carrot Top what brings you out today?" Mr. Cake said causally.

The Doctor nudged her to responded, she quickly gave him a look of frustration.

"Oh, just out and about, doing somethings." She said.

"And how do you do today Mr. Turner?" He asked the Doctor.

The Doctor bit his lip. "I am doing quite fine myself sir, just stopping by to get some…stuff."

"Oh, we got plenty of that here." Mr. Cakes said coughing a bit.

"You feeling alright sir?" The Doctor asked.

"Oh, quite alright just a little cold thats all. I've already been to a doctor and he told me that it would pass. Though the twins must have passed it on to me. For now they're all fine and I am the one who's suffering" He said jokingly.

"Yeah, adjusting to an unknown atmosphere will do a number on the lungs." The Doctor mumbled. "Well we were just passing by and were about to be on our way. Weren't we Carrot Top?"

"Right, we must be getting off now." She said agreeably.

Mr. Cake nodded and started to head back inside. "Well come by sometime when you're not in a rush. We always are glad to have company."

As soon as he was out of site the Doctor took out his screwdriver. He began examining the door that Mr. Cake had just gone through.

"There it is." He said.

"What?" Carrot Top asking examine the door as well.

"There is traces of pony but also of something not of this world. Also there is a trace of something else here that I don't even know. That combined with the Tardis's radar means that the zygon has taken Mr. Cake's imagine for sure." He said.

"But why? I mean Mr. Cake is not exactly the most powerful figure in the town?" Carrot Top asked.

"Good question, what would a zygon have need for a small time business stallion. Unless something got his attention, something that screamed for him to take this pony's imagine." He pondered. "Well we have our victim, and we have the place. All thats left is to figure out how we are going to trap this zygon and find the real Mr. Cake."

Carrot Top smiled for now she felt confident for the first time meeting him. "What would be the first course of action."

"Simple, we go back to the Tardis and examine these readings. It might help us you know also acting now in broad daylight would just attract attention to ourselves." He said.

"Well lets get going then." Carrot Top said heading back in the direction of the Tardis.

The Doctor smiled. "Now you're getting the hang of it."