Ok, so this is my first fanfic. Yay! Please don't let that scare you, it'll be good, I promise. This first chapter is super short, but they will be getting longer as it goes along. I will try to update every other day, so let's get on with it :)

Chapter One: A Crack in the Wall

The door slowly creaked open and Molly Hooper's head popped into view. "Hello," she said nervously, fiddling with her dress. She awkwardly walked into the room and came to a stop in front of Sherlock, who was lounging on his chair, legs crossed, chin resting on his hands. He quietly sighed, then said, "Ahh Molly. You're here. Is that a new dress? Nice color. It suits you."

Molly's face quickly became a dark shade of pink. "Well actually, yes-"

"It is a bit cheap though... Clearly a knockoff," he scoffed.

"Well-"

"But that's besides the point. Why are you here?" His quick deduction had flustered her, and it took a moment for her to process his question.

"Why, you invited me here!" she exclaimed, still looking slightly confused.

"Oh yes, that's right," he said slowly. "You need to help me with an experiment." He jumped up from his chair and headed towards the kitchen.

"An experiment? Why do you need my help? Where's John?"

"John is out of town and you're the only other person I trust, save Mrs. Hudson. But she is unfortunately out shopping." He made a face. Molly sighed and slipped off her jacket.

"Fine, but I'm only staying for an hour."

She followed him into the kitchen, where all of equipment was set up, including a bag of severed fingers. Molly scrunched up her nose. "What are those fingers for?"

"The experiment," Sherlock replied, not looking up from his microscope. Molly rolled her eyes. Then she looked at the far wall of the kitchen and her eyes widened.

"Wha- what is that huge crack in your wall there for?" Sherlock waved his hand dismissively.

"Oh that just appeared there over night. Nothing to worry about." He bent back over his workplace and started examining some data.

"But its huge! How would it ever get there?" Sherlock slowly straightened from his hunched position and looked at Molly with disdain.

"I said it's nothing to worry about. I also invited you here to help with an experiment. Not to stand around blabbering about a bloody crack in my wall." Molly blushed and quickly walked to a microscope.

"Sorry, I'll just stop talking now," she muttered.

"Very good idea," and he returned to his experiment. They were both deep in work when a whirring, groaning noise came from the other room.