Thank you so much for the reviews. Thank you to all the people who gave advise about changing the Doctors. I've decided to change to the 11th Doctor. Thank you for the advice and reviews from everyone! When I get the time I'll edit the first couple chap.

Neko Morie- Thank you, I'll make sure to re-read the chapters more. :)

puddinflaun and NerdoftheWorld- Lets just say it's either the Wholock fandom's biggest dream or worst nightmare.

This story is based between Hound of Baskerville and Reichenbach.

BANG!

The door to 221b swung open and hit the wall with a loud bang. "What the-" John ran out from his room to see what was happening.

The Doctor burst into the room panting. "He's back. You need to help me, Sherlock. The Master is back and I need help. Normally I wouldn't, but this is big. Really big. Bigger than me, and that's saying something. You're the only one that can help me." The Doctor said in a slightly panicky tone.

"Surely a man of your intellect doesn't have a, master. " Sherlock inquired.

"Not my master, the Master. He's an alien like me. One of my worst enemies, my arch nemesis if you will. He once tried to destroy the world with lots of tiny cyborgs he called the Toclafane, but that's another story for another time."

"You're an alien?" John exclaimed, "Ha! You expect me to believe that? You are completely mad."

The Doctor gave John a hard stare, but suddenly smiled, "Grab your hats gentlemen! We'll talk on the way." Sherlock stood up and tied his scarf around his neck without hesitation. At first, John looked astonished that Sherlock would even consider following this mad man, and was about to argue, but then remembered how futile it was arguing with Sherlock. John reluctantly grabbed his coat and ran after Sherlock who had already left the flat. The Doctor was halfway out the door by the time Sherlock and John got downstairs.

"Where are we going?" Sherlock asked.

"Somewhere to prove to John that I'm not lying, or mad." The Doctor added, "We'll do a bit of research too. Now, I know the Master and Moriarty have somehow met and are working together. Those combined forces could distroy the world as we know it if we let it. With your deductions, John's medical knowledge and my knowledge about everything else, we should be almost unstopable. That is, if Moriarty and the Master havn't gotten too strong..." He trailed off at the end of his sentence. After walking a couple blocks, the Doctor turned down a dark alley. "We're here!" He said happily. An old, blue police box loomed out of the darkness. He took a key out of his jacket and unlocked the door. John and Sherlock looked on skeptically. "Well don't just stand there! Come in!" The Doctor jumped in leaving the door open a crack.

John and Sherlock looked at each other. Sherlock turned up his coat collar and walked inside. John hesitated, then followed. He almost ran right into Sherlock, who had stopped dead in his tracks staring dumbfounded at the huge interior. The Doctor was nonchalantly sitting in a little chair smiling at them. "Welcome to the TARDIS! That's time and relative dimensions in space. The inside is bigger than the outside. Well, I suppose you noticed that... What do you think? Pretty impressive if I do say so myself."

Sherlock snapped out of his shock quickly and started to look around, studying the TARDIS' console. "Impressive, but doesn't it need 6 people to pilot it properly?"

"Well, yes, it does. Only happened once at the Medusa Cascade... but that's besides the point." The Doctor jumped up from his chair to a monitor on the consul and started typing on the keyboard. "We need to find out what the Master and Moriarty are up to, and fast."

Keep your guesses about what's next coming! It really helps me develop the storyline a lot. You are all amazing! :D