I was just about to place my keys into the door when my phone rang. Pulling it out and pressing it up against my ear I frowned slightly.

"Auntie Chrissie?" Amy's voice called out as I frowned.

"Hi darling what's up?"

"Can you pick me up from ballet please……I tried to get hold of dad but he wouldn't answer" Her voice trembled slightly as I placed my keys back in my pocket and waved for a taxi. I kept on the phone as I made my way to the studio to see her teacher standing beside her.

"Wait" I informed the driver as he nodded.

"Hey kiddo, let's get going" I called as she got in as I walked to the teacher.

"You weren't able to get hold of him?" I ask curious as she shook her head.

"Once but it must have been the wrong number. I got hold of a Russian woman….."

"Thanks" I smiled bitterly before I took Amy back to Baker Street.

"MRS HUDSON!" I called out as she ran out from her apartment frowning before she smiled down at Amy.

"Can you watch over Amy for me please" She nodded as I kissed the top of Amy's head and stormed out of Baker Street. I was fuming I stormed my way down the streets towards fitness center which Michael worked in as I barged in. The lady at the desk gave me a smile as I stormed past her. I could see her watching me as I went down the corridor to where Michael's name was printed on the door; I heard giggling behind it as I quietly tried the handle to find it locked.

Taking a step back I slammed my foot against the handle as the door flew open to find the rogue Russain agent placed in his lap on chair. They both gasped staring at me as I folded my arms over my chest patting my foot on the carpet angrily. She gulped and I knew she recognized me.

"Chris it isn't what it looks like………"

"I would keep your jaw shut Michael. Or so help me I will cut out your tongue! You out now!" I pointed to the woman as she scrambled out of his lap as he tried to present himself as I glared. She adjusted her dress scared for her life.

"I'm not done with you!" I warned to Michael before I grabbed her arm and threw her out of the office and against the hall floor. She grasped her head as blood trickled down her hand.

"Если я когда-нибудь узнать, у вас так много, как говорят слово или уложены глаза на него снова. Я убью тебя! Я буду пытать тебя, пока вы не просить смерти! (If I everfind outyou have so muchas saida word orlaideyes on himagain.I'll kill you, I'lltorture youuntil youask fordeath!)" I growled deeply walking towards her as she kept scooting away begging for mercy.

"Убирайся с глаз моих! (Get out of my sight!)" I watched as she scrambled down the halls before I stormed back into his office. I stormed over towards him and swung a punch breaking his nose as he cried out.

"I got a call from your daughter asking to be collected from ballet almost in tears. Where were YOU! If I ever find out you have been sneaking around with her or anyone else for that matter, I will kill you and make it look like an accident! Do you understand!" I growled as he cowered on the floor cradling his nose. I turned to leave only to turn back.

"My sister loves you! She has turned a blind eye for years! I however will not!" I threatened before I left once more. The desk assistant watching me shocked as I left and stormed back to Baker Street. I slammed the door behind me as I marched up to our apartment. Sherlock was sitting on one of the dining chairs with his back to the dining table.

I noticed that Sherlock must have printed out the photographs from the Bank as I glanced to see a portrait of a man in a suit with a graffiti ‘tag’ in yellow paint. The tag looks vaguely like a number 8 but with the top of the number left open, and above it is an almost horizontal straight line. And across the eyes of the portrait another almost horizontal straight line has been sprayed. I raised an eyebrow. I glance back at Sherlock as he has his fingers steepled under his chin and is staring at the photos as various symbols.

“Could you pass me a pen?” He asked as I rolled my eyes as I grabbed one from the table and threw it over my shoulder. I was furious and I wanted to hit something. I grabbed a mug and poured myself a cup of tea. Sipping on it I went down the corridor from the kitchen and stopped and my bedroom door and opened it slightly to see Amy fast asleep on the bed. I gave a weak smile and closed it once more heading back out to the living room.

"Rough morning?" He questioned giving me a small glance as I sat beside him licking my lips from my tea.

"Walk in the park" I responded bitterly taking a sip of my tea once more.

"I've seen this sort of thing before…..they represent the Chinese numbers rather closely but I can't determine what" I muttered as he raised an eyebrow towards me. "Where's John?"

"Has a job at a surgery" He replied as I nodded.

"You're niece knows about her father's affair" He spoke suddenly making me choke on my tea as he patted my back. I looked up into his eyes concerned as we didn't say anything at first. We probably sat staring at each other before the sound of the doorbell downstairs made us jump slightly. I growled rolling my eyes as I knew who was making their way up the stairs. A knock came on the door as Sherlock got up and answered it.

"Oh uhhh is umm…."

"Let him in Sherlock" I spoke as he awkwardly walked in, his nose heavily bandaged, blood stained on his collar, as I noticed the smell of her perfume on his neck followed by hickies and stained lipstick. I threw a towel towards him as he dropped it before I went and gently woke up Amy.

"Time to go squirt" I whispered as she tried to cling onto my bed.

"No. I don’t want to go anywhere with him!" She sulked sadly as I pulled her into a tight hug sighing and brushing her hair.

"Come on squirt you've got to watch out for Matt. Be brave and strong and all will be okay…..alright? Now where is that smile?" I asked making her laugh before we walked out. She giggled when she saw her father's bandaged nose. He held out his hand for her as she looked at it disgusted.

"Bye Auntie Chrissie. Thank you for having me Mr Holmes" She smiled before she slammed past her father. He gave a weak smile before they left as I watched them walking down the street and out of sight.

"Here, have a look." Sherlock suddenly spoke as I frowned.

"Hmm?" I walked over to the table and looked at the web page on the open computer. The lead article on the ‘Online News’ page is headlined, “Ghostly killer leaves a mystery for police”. Next to it is a photograph of the bald man, and the article reads:An intruder who can walk through walls murdered a man in his London apartment last night. Brian Lukis, 41, a freelance journalist from Earl’s Court was found shot in his fourth floor flat but all his doors and windows were locked and there were no apparent signs of a break in. A police spokesman said they are still uncertain how the assailant broke in..."

"The intruder who can walk through walls." I questioned slightly.

"Happened last night. Journalist shot dead in his flat; doors locked, windows bolted from the inside – exactly the same as Van Coon." Sherlock informed as he caught me up with what I missed when I had things to deal with earlier this morning.

"He’s killed another one." I muttered before I felt my phone starting to buzz as I pulled it to my phone.

"What?" I snapped as Sherlock raised an eyebrow.

"You do know what've you done, haven't you. She's scared stiff!"

"And so she should be! Keep a tight leash on her Mycroft or I will come and take the dog out of your care!" I snapped before throwing my phone across the room angrily. Slouching down the side of the hall, I rested my forehead on my knees as Sherlock came and sat beside me. He went to put an arm around me as I growled causing him to take it back. I sighed and rested my head on his shoulder as I knew he was confused.

"Let's go solve this mystery" I whispered glancing up at Sherlock as he helped me up before we both grabbed out coats. I left a small note on the dining table for John if he got home before us. Making our way to Scotland Yard I caught someone watching me from a distance. Reading the newspaper but flicked through the pages to often and his eyes wandered on me as he got up to walk towards me.

"Chris? You coming?"

"Yeah" I called before I walked in and watched the man pass the front of Scotland Yard looking over his shoulder back at me. Walking inside I saw D.I. Dimmock sitting at his desk and folds his arms in exasperation as Sherlock stands on the other side of the desk and types onto a laptop. I walked over crossing my arms over my chest as he raised an eyebrow at me as I glared.

"Brian Lukis, freelance journalist. Murdered in his flat ..." Sherlock began as he turns the laptop around to show Dimmock the web page which we had been looking at earlier. "...doors locked from the inside."

"You’ve gotta admit, it’s similar." I stated as Dimmock scowls at the computer.

"Both men killed by someone who can ..." I spoke almost hesitant, I can't believe I am saying this. "...walk through solid walls."

"Inspector, do you seriously believe that Eddie Van Coon was just another City suicide?" Sherlock questioned as Dimmock squirms, not meeting his eyes. Sherlock looks up, exasperated, and sighs pointedly.

"You have seen the ballistics report, I suppose?" Sherlock questioned again as he nodded in response.

"And the shot that killed him: was it fired from his own gun?" Sherlock pressured once again as he hesitated and shook his head.

"No."

"No. So this investigation might move a bit quicker if you were to take our word as gospel." He demanded glancing down at me as I raised a slight eyebrow towards him. I watched as Dimmock looks back at Sherlock and I silently. Sherlock leans forward over the desk and speaks quietly but intensely into his face.

"I’ve just handed you a murder enquiry." He whispered before he pointed towards the picture of Lukis on the computer. "Five minutes in his flat."

Eventually we made it to Lukis' flat as Sherlock and I ducked under the police tape at the bottom of the stairs inside the door of the flat. Sherlcok goes upstairs, followed by Dimmock and I. Looking around at everything as he goes, he walks into the living room. There’s an open empty suitcase on the floor. Nearby on the carpet is a black origami flower, similar to the one that was pulled from Van Coon’s mouth. There are books everywhere on the desk and on bookshelves and scattered about on the floor. Several open newspapers are also lying on the floor. I slowly walked over to the kitchen area and looked through the window at the nearby rooftops of lower buildings. Pushing the net curtain back for a better look, I smirk.

"Four floors up. That’s why they think they’re safe. Put a chain across the door and bolt it shut; think they’re impregnable." I scoff as Sherlock chuckled silently at my response before we both get back to looking at the rest of the flat.

"They don’t reckon for one second that there’s another way in." Sherlock continued on my sentence as he turns back towards the stairs and sees a skylight above the landing.

"I don’t understand." Dimmock frown confused as I rolled my eyes.

"You’re dealing with a killer who can climb." I informed him as I wink to Sherlock as he smirked; locking his fingers I placed my shoes in his hands as I pulled myself up towards the skylight high up on the angled roof.

"What are you doing?" Dimmock snapped. Neither of us spoke a word until I unhooked the latch and pushed the window upwards.

"That’s how he got in." We spoke at the same time as I glanced down with amusement in my eyes as he returned the feeling.

"What?!" Dimmock exclaimed as I placed my hands on Sherlock's shoulders and hopped down, with his hands on my waist. We both paused glancing at each before turning back to Dimmock.

"Climbed up the side of the walls, ran along the roof, dropped in through this skylight." Sherlock stated simply.

"You’re not serious! Like Spiderman?" Dimmock was starting to get on my nerves as I flexed my fingers.

"He scaled six floors of a Docklands apartment building, jumped the balcony to kill Van Coon." I shrugged easily. I could do that in my sleep if I wished too. It just shows that these men and women are highly trained assassins

"And of course that’s how he got into the bank. He ran along the window ledge and onto the terrace." Sherlock added as well as we gave each other a small smirk before we both began to start looking around once more.

"We have to find out what connects these two men." We both muttered as I noticed that Sherlock'seyes fall on the pile of books scattered up the side of the staircase. Jumping down a few stairs he picks up one particular book which has fallen open at its front page which shows that it has been borrowed from West Kensington Library. Slamming the book shut, he takes it with him as he heads off down the stairs. As he summoned a taxi I noticed once again the man following me as I grew stiff in the back.

"Date stamped on the book is the same day that he died." Sherlock told me showing me the page as I nodded before he got into the taxi waiting for me to follow.

"I'll meet you later, I need to check something" I told him as he merely nodded and shut the door before I started walking down several alleyways before turning and engage in a fight with my stalker. Feeling a slight prick in my leg I threw the man off me to see two needles stuck in my leg as I pulled them away. My vision began to blur as my senses began to switch off. My body went numb as I collapsed on the ground followed by a harsh kick to the head as everything went black……