I hope the summary does this story justice... I couldn't really think of what to put...

Oh, BTW, sadly I don't own Sherlock. *tear*

Ever since he was a little boy Sherlock had been fascinated with the human mind and how it worked. He often spent most of his days performing experiments to satisfy his curiosity. Sometimes going so far as to work for days even weeks on end until he figured out the correct answer.

That was why it came as no shock to someone when they found out Sherlock was very seldom, if ever, wrong.

Not many things every, truly stumped Sherlock, he would always find the answer, no matter what he had to do, no matter how long it would take; he would find the answer.

That's why, when it came to the case of John Watson, Sherlock would find himself staying up till all hours of the night. Because when it came to the case of John Watson, Sherlock found that no amount of violin playing, experimenting, thinking would make a difference. Because when it came to the case of John Watson, Sherlock found he was truly and completely baffled.

Sherlock was used to being abused, ridiculed, laughed at, singled out, misunderstood, bullied, all because of his unique ability. But never had he been praised, until John Watson.

John watches him, and never seems to get annoyed by they way he appears to know everything about everyone. He praises him when he gets his deductions correct, and even when he doesn't. John tolerates his experiments, and most of the time lets them slide. But most of all, he hasn't left. John stuck around, even after finding out about Sherlock's strange tendencies.

This is what captivated Sherlock's great mind, late nights, early morning, even dull afternoons, time made no difference. When he wasn't out solving crimes to the police, or trying to solve of his many other problems, Sherlock was attempting to unravel the mystery that was John Watson.

It didn't make any sense to Sherlock. John wasn't his friend, he didn't have friends. Lestrade just barely tolerated him, the reason Sherlock was around was because Lestrade needed him. Mycroft was a whole other story, they were brothers after all, and he'd promised mummy he's look after her youngest. It was still his job though, his responsibility. Sherlock failed to see John's reasoning though, what was ulterior motive? What could he possibly stand to gain by tolerating him, living with him?

John was the mystery that Sherlock couldn't seem to solve no matter how he looked at it. The pieces just wouldn't fit together like they normally did. This seemed to happen a lot when John was concerned. No matter how hard he tried he just couldn't find an answer. John was, unsolvable.

And that was that. Maybe one day Sherlock would pull out the file in his brain marked John Watson and rethink his conclusion. Maybe one day, he'd figure out that John didn't gain anything by living with him. Maybe one day he'd figure out that John really was his friend. Until then, the file would stay, Sherlock's one and only impossible problem. Until that day, John Watson would remain unsolvable.

Hey everyone, that was just a little idea I came up with a while ago that I never had time to type up. I really hope you enjoyed reading it. And now, because I am tired, I'm drawing a blank as to what else I should say, so, on one last note, Please review! I REALLY want to know what you think about this one, 'cause it's one of my favorites I've ever written!