Rosie's scream rung throughout the whole house. It was piercing. She slammed the door and slip down it onto the floor. Sherlock, John and Lestrade all came running up the stairs. Rosie had curled into a ball and was crying.

"Rosie…Rosie look at me." Sherlock pled with her. "Rosie, what is it? What have you found?"

John opened the bedroom door. "Holy shit. Sherlock, you better come and look at this. Lestrade, get Anderson. I'm going to take Rosie down stairs."

Sherlock went into Rosie bedroom. He too saw the message on the wall. The blood leave stains as it began to drip down the wall. He looked around and all he saw a rose sat on the windowsill attached to it was a card.

Warehouse 31…tonight…10pm…Be there or the girl gets it.

He pulled the card off and put into his pocket. He looked around the room and found nothing else that was out of place or not where it should have been. The killer was getting more and more clever, now he wanted to meet them. He wasn't afraid of Sherlock. Anderson and Lestrade walked into the room.

"Jesus, someone clearly doesn't like you two." Anderson said.

"Don't act like you care, Anderson. It doesn't suit you. Did you people find anything?" Sherlock turned to Lestrade.

"Yeah, the knife, serrated and covered in the blood probably the victims and will match the blood that we've found the wall. We're sending off the knife for finger print analysis." Anderson cut in.

"I doubt you'll find any." Sherlock muttered.

"What makes you say that? The killer left in the middle of the counter. Clearly not very clever." Anderson tried to out-smart Sherlock again.

"He's very clever because they clearly left it for us to find because they knew we wouldn't be able to trace it because there are no prints on it. If they didn't want us to find it because it had prints on they would have hid somewhere more hidden they a counter top. Anderson, you really are stupid."

Anderson opened his mouth to say something and then closed it realising that he wouldn't be able to win.

"Do you reckon this is the blood of our victim's Sherlock?" Lestrade queried.

"Yeah, I do. I would explain the lack of blood at scenes. The killer clearly collected the blood to use it here." Sherlock said calmly.

"That's disgusting." Lestrade said flabbergasted as Sherlock left the bedroom and went downstairs.

Sherlock went into the kitchen where Rosie and John were sitting. "Rosie, where about would you say your mother was killed."

"Sherlock."

"John, shush please. This is important. Where Rosie?"

Rosie stood and led Sherlock to the spot where she found the pool of her mother's blood.

"Here roughly." Rosie flinched as she pointed to spot.

"They never found the killer."

"No. Why?"

"I'm beginning to wonder whether the people that are killing now are the same people who killed your mother. Right I'm down here. John. Rosie." Sherlock walked out the front door and down the drive. They got into the taxi when Sherlock took out the card he found attached to the rose.

"Sherlock! We've got to turn around and tell Lestrade got a team, a plan. This guy is serious." John said annoyed.

"No, we can't tell them John. We are too involved in this and the police were alerted to the situation we may lose are only chance to stop this guy. We are all going there tonight. This is a much for Rosie as it is for me now. I've no idea what we will turn up to when we get there. The killer won't give himself away now, it's too soon and elaborate. He's going to give us more clues…if he does turn up, we won't be able to speak to him." Through all the rush of his thoughts there was a pause of stunned silence. "I need to speak to Mycroft."

"Mycroft? You never go to Mycroft for help." John almost laughed.

"I need his surveillance skills." Sherlock said plainly.

"Dad." Rosie whispered. "What happens if it' the same warehouse, where they found mum."

"The thought had crossed my mind." He took hold of his daughter's hand. "The game is on. He's watching you play this game and he's enjoying watching you relive your past."

"You never go to your brother for help." John said.

"He can be handy and he'll do whatever I want…within reason."

The taxi pulled up outside of 221B there was a sleek, black car parked.

"Mycroft's here." Sherlock said as he got out of the taxi.

Sherlock unlocked the door and they scaled the stairs to find Mycroft sat in an arm chair drinking tea with Mrs Hudson.

"Sherlock. Lovely to see you John, Rosie." He greeted them formally.

"You too, Mycroft." Rosie smiled. John greeted him in a similar way.

"This isn't just a friendly visit." Mycroft said getting to business.

"Mrs Hudson." Sherlock looked fondly over to his landlady. "As lovely as it is to see you. Do you mind if we have a minute to talk in private? Go do some cleaning."

"I'm not your housekeeper love." Mrs Hudson said as she stood up and left the room.

"You know where we've just come from." Sherlock asked.

"Yes, Rosie's old home." Mycroft stated.

"How do you know that?" Rosie inquired.

"My people are always following, my dear. To make sure that my dear brother doesn't get into too much trouble." Rosie nodded, she should have expected this from her uncle if he was anything like his brother.

Sherlock told Mycroft about what was going, the killings, the notes, the strange texts, the message on the bedroom wall and the note about the meeting tonight. Sherlock then proceeded to tell Mycroft about his theory that the person behind these murders may be the same person behind the murder of Rosie's mum. He then resulted to the fact that this murderer is playing a rather sadistic game with not only Sherlock but Rosie as well.

"This could get very dangerous, rather quickly." Mycroft raised his eyebrows.

"I know that's why I need some of your people close to us at all times tonight."

"What else do you want?"

"As much surveillance as you can get us. This is no longer just about me it's about Rosie as well, I want to make sure that she gets out of there alive." Sherlock glanced over to his daughter who looked very worried.

"I'll see what I can do. I'll call my people to get them set up some cameras in and around the warehouse right away. Sherlock, for God's sake if it gets out of hand and any of lives are at risk you run straight out of that warehouse and you get into one of cars that I have down there and you phone me straight away." This was the most caring that Sherlock had ever seen his brother, he assumed it was because John and Rosie were involved she he went to be sure on their safety.

"Thank you, Mycroft."

"Well I best be off." Mycroft set his cup down and stood up. He picked his umbrella. "Goodbye Sherlock, Rosie, John." He then took his leave in his usual way.

"John, teach Rosie how to us your gun. I want us all to have a gun tonight for safety."

"You have a gun?" Rosie exclaimed.

"You can't give Rosie a gun, she's only a kid." At the same time, as Rosie.

"She has no other way to protect herself tonight if we get separated. She's my daughter and I want her to be able to look after herself." Sherlock shot back at Rosie. "I have a couple of spare that I nicked form Scotland Yard."

"What happens if I get attacked from behind?" Rosie worried.

"You better hope that one of us is around to help you." Sherlock said plainly.

It was about six when Sherlock started to get ready, he was worried. Worried about what he was bringing his daughter into. Thinking about ever possibly idea about what could go wrong tonight and way to solve it. He'd taught Rosie how to use a gun, despite John's protests. John said that if Rosie didn't want to anyone then just shoot them in the legs, they'd be wounded but they stood a much better chance of living, and they wouldn't be able to chance after her. Sherlock kept glancing down at his watch as he paced the room. Rosie and John had gone to get something to eat before but Sherlock refused. Not long after they had gone out to eat with Mrs Hudson downstairs, Sherlock received a text message, from the unknown number.

I'm enjoying this game of our your both playing it so well. That's until she breaks after our little meeting tonight.

Sherlock huffed and narrowed his eyes. Another text came through, this time a picture message. It was a picture of the warehouse. It didn't look like that there was much there it appeared as if it was a big empty black void. You couldn't see much. Sherlock then looked at the picture closer and it appeared as if there was a body lying in a pool of blood. Sherlock assumed that this was the warehouse that they would be going to tonight and the one where Rosie's mums body had been left. A text came through.

Leave now. I can't wait to see you.

Sherlock threw his dressing gown off and wrapped his scarf around his neck and ran down the stairs whilst putting his coat on. He barged into Mrs Hudson's flat and dragged John and Rosie up.

"Sorry Mrs Hudson but we have to leave now. Had a couple of texts from our little friend. He wants to meet us now. Come on we need to go!

Sherlock hurried them out of the flat and into the text of a cab. Sherlock then began to wonder about what was going to happen to them over the next few hours and whether they would all come back in one piece. He looked at his daughter and knew that the killer was out to break her and hurt her. Nothing him would stop him from hurting her until she could no longer deal with it. That was his plan to taunt her. He had to protect Rosie, she was too vulnerable, he'd only just got her back he couldn't lose her just yet. If things go badly wrong, maybe it would Rosie that will be lying dead on that warehouse floor or a morgue table if he let her live but she couldn't cope anymore so killed herself instead of letting living with the pain. That wouldn't happen though he was Sherlock Holmes the great consulting detective. Some stupid little killer was going to get the better of him or his daughter.