Sherlock Holmes:

My mind raced trying to separate the impossible from the probable. There were many possibilities that couldn't be solved without visiting the scene.

"John tell Ms. Hudson that I'll be down the street. She often throws away my experiments when I'm out." I could tell that John was surprised that I knew were the back ally was. He forgets who his company is once in a while.

"Sure." He nodded in response. But I was out the door and down the stairs before he finished his answer. With so many possibilities I needed to rule out a few of them I could rule out immediately on the way there. I could tell it was a young boy, the time of day most likely around 12:00. The stroke of midnight. The shadow's position on the wall said that much. I turned the few more corners and all to soon I found my destination. There was only one problem. The ally was walled up, bricks covered every square inch. I put on the nicest smile I could and turned towards the nearest person. "Hi!" I made sure to make my voice extra perky.

"I was wondering how long the ally has been walled off." Normally I would wait to research at the flat but this! No! This was exiting! The chase was on!

"It's always been walled off…" the man replied. I lost my fake smile and turned back to the wall. That's impossible, I came by last month, and it wasn't...