AT BARTS HOSPITAL ROOFTOP.

Sherlock and John make their way to the top of the hospital when they see moriarty already they're waiting for them.

"Ah good you came" he says smiling. "Ah you brought your ball and chain too I see, how very touching"

" what do you want moriarty" Sherlock says inching closer to where he was standing" in a monotone voice.

John walks up with Sherlock to where moriarty is sat. Staring at the small black haired man. The man He was smiling like he knew something they didn't and quite honest he probably does.

"A game" moriarty says happily. Sherlock and are now standing in front of moriarty with only a couple metres to spare.

"So what is it then" Sherlock says not patient at all.

Moriarty looks at Sherlock. "An game, you take his vile of Barack-224 and I don't kill everyone you love"

Sherlock doesn't make any facial expressions while he figures out a plan.

"That's -" Sherlock starts to say but gets cut off my moriarty.

"Yes and you're going to drink it otherwise your little … friends die" as he looks at John who gives him a worried look. But he wasn't worried it was More excitement as the possibility of Sherlock's pet dying.

"It's only ever been tested on animals not humans" Sherlock says looking at John who had worry written over his face.

Moriarty looks at Sherlock with a massive smile on his face. " are you going to tell him or shall I" John looks very confused at both of them before asking Sherlock. "What does it do" John says inching closer towards Sherlock.

"Sherlock" John says trying to take charge.

"It's a memory inhibitor, it deletes your memory and reverts it back to childhood. So i would possibly forget you John…" Sherlock says still not looking at John but at moriarty who has taken out the small green liquid test tube from his pocket.

"Your your forget me .. Sherlock there must be another way. Cmon Sherlock think" Johns voice trailed off . Trying not to let worry in his voice be seen.

"It's only been tested on an animals and they converted back to their earlier versions of them self" moriarty says still smiling. Sending John shivers down his back at his total lack of care. But. At the end of the day it was moriarty.

" ah" moriarty says excited. "Have you not told your pet the catch" he says smiling like a mad man. Which he was.

Sherlock takes a deep breath and looks at John. "If I don't do this he's going to kill everyone I love including you John , I-I have to do this."

John looks visually stunned. "Sherlock I can't loose you" John says worriedly. By this point there was a red dot on Johns head from a nearby Hitmen. Sherlock sees this and sighs. He takes the vile off morality who's smiling at him.

As John says this Sherlock gets the green vile and looks at it.

John secretly gets his phone out behind his back and texts the DI.

"Come now , trouble. Bart's hospital roof"

As John sends ur Sherlock takes off the cork of the bottle. "Sherlock don't please" before Sherlock looks at John. "I'm sorry it's the only way" before John could say anything Sherlock had already taken the green liquid. The vile smashes loudly on the ground.

"Sherlock" John was loudly running over to Sherlock.

"I'm fine . I-I-I'm fine" Sherlock clutches his stomach in pain. Then suddenly his Legs give way. Sherlock is on the floor clutching his stomach while a small groans leave his mouth.

"Ar it hurts" Sherlock says quietly.

John sits down next to Sherlock patting his bad trying to make him feel better but he knew it was too late.

"Ah sorry I forgot to mention" moriarty says smiling with his hands up in the sky in an oops sorry must of slipped my mind stare.

"It also changes from now to your younger self so you you won't have your Sherlock anymore and he won't have any memory of you either"

"Oops" moriarty says smiling, quite enjoying the scene unfolding in front of him. "But you probably knew that right .. Sherlock" moriarty looked at Sherlock on the floor.

"I'm.. ah" Sherlock says in pain. "Sorry John , I didn't want to worry you more"

"Worry me more , I'm beyound worried mate" John says giving moriarty a glare.

All of a sudden Sherlock tried out in pain. His body felt like it was changing , morphing into something else. He could feel his body reconstructing.his bones snapping and changing , his cells popping and changing. His memories changing. Becoming weaker every second. He looked up at John but he couldn't place the face. He just saw An younge man holding him but he didn't know where from. He could see the worry In the man's face but he didn't recognise who it was. It was a stranger to him .

"Get off me, I don't know you. Who the hell are you" Sherlock says loudly before getting the strange man's hands off him.

Moriartys face lightened up even more.

"It's working" with excitement in his voice. John gave him a glare but didn't say anything.

John was still sat on the floor next to his best friend. Tears in his eyes. "Sherlock you need to try and keep your memory, of us , me." John said quietly. Sherlock still doubled in pain on the floor In a heap looks at John. John looks at Sherlocks eyes. There was no reconnection of him in his eyes. He didn't know who John was. John hugged his friend tightly. Sherlock might not know who his man was but the hub was warm and inviting so he let the man do it. "It's going to be ok." John said quietly.

John thought to himself. "I hope the DI gets here soon. As he said that to himself there was banging on the door up to the roof. It was the Greg with a few others all pointing their gun at moriarty. They took charge of the situation and sorted moriarty out. As moriarty walked past Sherlock with his hands behind his back. He looked down at the sorry heap of Sherlock and John. "Sherlock are you still with us" he grinned. Sherlock looked up at the man not remembering who he was. "Who - who's that … Sherlock?" Said stuttering. Moriartys smile grew. He had done it this time. He smiled to himself. Moriarty put his foot down so the women police women couldn't move him. "Sherlock - ooh Sherlock , who's the man sat next to you" he said in a sing song voice than made John glare at moriarty again.

Sherlock looked up at him again , I - I don't know"

Moriartys smile grew even bigger. John didn't like this one bit. He jumped up while he heard Sherlock groan again in pain.

"What the hell is wrong with you" John gets close To the man. "Tell me there's a way to get him back" he had Moriartys collar in both his hands, gripping it tightly. Their faces so close John could feel his breath on his.

Moriarty smiled. "There isn't" he finally got let go after a quick staring contest. "Let's go"

The voice of the police said behind. "Ah your no fun" moriarty teased the police.

The police and moriarty left the building leaving Greg, Sherlock and John on the roof.

Greg made his way over to Sherlock who was trying to stand up but failing. John went over to him to help him up but was then shouted at by Sherlock.

"Who the hell are you, I don't need your help" in a cold voice staring at John.

Greg was taken back with Sherlock's words.

He stares at John in confusion. After staring to speak. "What happened" Greg's voice laced with concern.

John signed , he looked at Sherlock was just starting to stand up to his feet.

" he took some experiment thing that gets rid of his memory and also changes him too or - or moriarty would kill all of us."john said coldly. Johns eyes looked sad while he looked at Sherlock. Greg looked from John to Sherlock. "Oh" he simply said. Greg started speaking again "is there a cure to turn him back?"

John looked sad again "idk"

While the two were talking Sherlock doubled over clutching his stomach. "Whatever I apparently took Is working. I can feel myself changing"

John and Greg looked at each other worriedly.

"Whoever you two are , help me please" Sherlock said sadly. He had a glint of panic in his eyes. Not understanding what is happening to him. Sherlock started walking while still clutching his stomach.

"Sherlock" John cried out. Sherlock stopped and turned around Halfway to the door. He looked at John with a cold look on his face. "Who's Sherlock?"

This took both John and Greg back.

"We need to do something with him" Greg says looking at Sherlock. John signs. "Let's take him back to Baker Street. There be no point taking him to the hospital , the liquid will be well into his blood system by now. John sighs. And he is already changing and forgetting"

"Greg looks at John no he's not . He's not physically changed yet." Looking concerned.

John looks at Greg. "Yes he is, look" Greg and John look at Sherlock. Sherlock's voice was already more softer and more sweeter and his clothes were becoming more loose.

Greg looked at Sherlock. "Let's get you home before you actually become a kid" Greg says biting his bottom lip.

They started to walk towards the door. When Sherlock doubled over again. John absentmindedly went over to help Sherlock when he hissed "GET AWAY FROM ME, I AM FINE. I Don't EVEN KNOW WHO YOU GUYS ARE HOW DO I KNOW YOUR NOT THE REASON FOR WHATS HAPPENING TO ME?'" Sherlock shouted at the two men in front of him. They looked shocked and taken back by the sudden outburst from Sherlock. John walks over to Sherlock and stands in front of him. "Sherlock we are here to help , trust us" John was in front of Sherlock looking into Sherlock's eyes. John could see worry and concern In them. "Who are you" Sherlock says quietly looking at both the men. John sighs.

He points at Greg who's standing just behind Sherlock "that's Greg the detective and I'm John , I'm -I'm your friend. Trying to keep his emotions to himself. Sherlock looks at them both with no other choice he decided to go with them. He could see the worry in their eyes.

"Shouldn't it off done it by now?" Greg said.

"Idk , something is happening his clothes are becoming very loose.

BACK AT BAKER STREET.

They got to Baker Street. They all sat on the couch when Sherlock went very pale. He grabbed his head and then look up when sherlock gasped with shock. when John noticed Sherlock looking at his hands. They were rapidly shrinking. Sherlock stood up , In utter shock. He began shrinking at an alarming rate. He looked at his hands shrink twisting them back and forward looking at both sides of them as they shrunk. Then he watches as his adamant start to shrink . He looked at John for reassurance. John and Greg didn't know what to do, they just watched in astonishment. His feet started to shrink and then his face become to grow younger. Sherlock closes his eyes so he doesn't have to witness it. After about 1 minute Sherlock was a child standing in his old clothes that were strewn around him.