"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.