Charlotte POV

"You should wear one of these" I said to John pointing at the blue overalls.

"Who's this?" Oh Lestrade… seriously?

"He's with me" I replied a little reluctantly, I then whispered very softly looking at the look on his face "don't look at me like that Lestrade. Oh shut up will you?"

"I didn't say anything..." he said whispering with a smirk, "but who is he?"

"I said he's with me!" I snapped at him.

I noticed Lestrade quickly analyse John, oh how it infuriated me.

"Aren't you going to put one on?" John asked, my attention returned to him.

I laughed on the inside. He's so naïve it's cute.

"So where are we?" I asked Lestrade.

"Upstairs."

Wonderful I thought. I was eager to get started, especially considering I had a guest with me.

"I can give you two minutes" Lestrade informed me, as we walked up the winding stairs

"I won't need any longer"

"Her name's Jennifer Wilson according to her credit cards, we're trying to scan them now for contact details. Hasn't been here long, the kids found her."

Well thanks Lestrade, I thought, like that's of much importance to me. We reached the room. I could feel John's breathing get heavier as we drew closer. I wondered whether he would be okay.

I observed the body dressed in pink laying on the ground. Hmmm… a challenge, I liked challenges.

"Shut up!" I snapped at Lestrade, he looked at me baffled. He gave me a look as if wondering if I could read his thoughts as well. This pleased me.

"I didn't say anything" he replied almost defensively,

"You were thinking. It's annoying."

I could almost hear John laughing behind me. That is good.

I took a few steps closer to the body, the room was now so silent the sound of my heels was almost deafening. I stopped to just hover over the body. My eyes immediately caught the writing on the floor and what used to be manicured nail that had scratched out the word.

Left-hand.

Rache, German for revenge? No. Rachel.

I bent down swiftly and stroked the top of the fuchsia coat, I held my hand up to the light to see it glisten. Wet.

I then placed my hand behind the woman to pull out the umbrella. How curious, it's dry.

I searched her collar, again it's wet.

I pulled out the magnifying glass from my coat pocket and focused it above her wrist where a thin gold bracelet lay. Clean.

Earrings. Clean.

Necklace, clean.

Ring… the ring was dirty. Ah!

That was all I needed to see. I smiled.

"Found anything?" Lestrade asked as I stood up to remove my gloves.

"Not much" I smirked.

"She's German." Stated an irritating voice that can only be Anderson, I had to restrain rolling my eyes, "Rache, German for revenge, now it could be-"

I couldn't take it any longer so I walked up to the door,

"Yes thank you for your input" then shutting the door on the buffoon I pulled out my phone.

"She's German?" Lestrade asked,

"No she's not; she's from out of town though, only intended to stay for one night though. Probably from Cardiff" I replied checking the weather on my phone. "So far, so obvious."

"Sorry, obvious?" John asked unbelievably,

"But the message-" Lestrade stuttered,

"Doctor Watson, what do you think?" I asked John cutting Lestrade off,

"About the message?" he asked in a confused manner,

"About the body" I corrected.

"Uh no, we have a whole team right outside Charlotte." Lestrade intervened,

"They won't work with me."

"I've broken every rule to get you in here."

"Yes, that's because you need me."

Lestrade stared at me, defeated, "Yes I do. God help me."

"Doctor Watson" I repeated,

"Just help yourself" Lestrade said dejectedly at which he walked out of the door.

John walked over to the body where I followed to crouch down beside the woman. I watched John intently, his eyelashes, the furrow in his forehead, his eyes. I couldn't help but stare at him intently.

"What am I doing here?" John asked dropping his cane,

"Helping me make a point."

"I'm supposed to be helping you pay the rent."

"Well this is more fun."

"Fun? There's a woman lying dead."

"Perfectly sound analysis, but I hoping you would go a bit deeper."

At which Lestrade walked back into the room. John sat on his knees and placed his fingers on her neck to take a pulse.

I folded my hands to rest under my chin as I watched him do his checks.

He sat up to look at me briefly, his eyes caught mine,

"Yep, fixations, passed out, choked on her own vomit, can't smell any alcohol on her. It could have been a seizure, possibly a drug"

"You know what it was, you read the papers." I corrected, trying to hid my disappointment.

"Well she's one of the suicides."

"Charlotte I said 2 minutes, I need everything you've got." Lestrade interrupted

"Victim is in her late thirties, professional person, going by her clothes and guessing something in media by frankly an alarming shade of pink. Travelled from Cardiff today, intending to stay for one night, so obvious from the size of her suitcase."

"Suitcase?"

"Suitcase, yes suitcase. She's been married for at least 10 years, but not happily, she's had a string of lovers. None of them knew she was married.

"Oh for god's sake, if you're just making this up"

"Her wedding ring, 10 years old at least. The rest of her jewellery has be regularly cleaned but not her wedding rings. State of her marriage right there. The inside of the ring is shiner than the outside which means it's regularly removed. The only polishing it gets is when she works it off her finger. Now who was she taking it off for? Clearly not the one lover, she'd never sustain the fiction of being single for that amount of time. So more likely a string of them. Simple."

"That's brilliant" John gasped catching me off guard. I smiled at this. I liked this a little too much. "Sorry"

"Cardiff?" Lestrade asked sceptically,

"It's obvious isn't it?"

"It's not obvious to me." John interjected,

I looked at him as to say that he did not need to say that. John Watson needn't reveal himself to me and Lestrade certainly has no right to know.

"Dear god, what must it be like in your funny little brains. It must be so boring."

Lestrade and John both gave me hurt looks.

"Her coat is slightly damp, she's been in heavy rain in the last few hours no rain anywhere in London in that time. Under her coat collar is damp too, she's turned it up against the wind she's got an umbrella in her left hand pocket but it's dry and unused, not just winds, strong winds, too strong to use her umbrella, we know from her suitcase that she was intending to stay overnight so she must have come a decent distance, she can't have travelled two or three hours because her coat is still hasn't dried. So, where has there been heavy rain and strong winds within the radius of that travel time? Cardiff." I stated showing them my phone.

"That's fantastic!" said John in awe.

"Do you know you do that out loud?" I reminded him,

"I'm sorry, I'll shut up."

"Why do you keep saying suitcase?" Lestrade mediated once again,

"Oh yes, where is it?" I asked whilst looking around, "she must have had a phone or organiser, find out who Rachel is."

"She was writing Rachel?"

"No she was leaving a acronym in German." I replied sarcastically, "Of course she was writing Rachel. Now the question is, why did she wait until she was dying to write it?"

"How do you know she had a suitcase?"

Must I explain everything I thought?

"Tiny splash marks above her right calf not present on the left, she must have been dragging a suitcase behind her with her right hand, you don't get that splash back in any other way. Smallish case going by the spread. Case that size, woman this close, conscious can't only be a overnight bag. Now what have you done with it?"

"There wasn't a case."

I looked up very slowly to Lestrade's face.

"Say that again?"

"There wasn't a case, there was never any suitcase-"

I pushed Lestrade out of the way,

"SUITCASE! Did anyone find a suitcase?" I asked whilst running down the stairs, "Was there a suitcase in this house?"

"Charlotte there's no suitcase!" Lestrade said walking to the top of the stairs,

"They take the poison themselves, they chew, swallow the pill themselves. There are clear signs even you lot can't miss."

I ran down the stairs,

"Right yeah, thanks. And?"

"It's murder. All of them, I don't know how. They're not suicides, they're killings. Serial killings. We've got ourselves a serial killer. This is always something to look forward to."

"Why are you saying that?"

"Where is the case? Come on! Where is the case? Did she eat it?"

"Someone else was here and they took her case. So the killer must have driven here. Forgot the case was in the car."

"She could have checked into the hotel, left it there." John suggested,

"No. She never got to the hotel. Look at her hair! The colour coordinates the lipstick and her shoes. She would have never left any hotel with her hair looking-"

Then something struck me, "Oh. OH!"

"Charlotte? What is it? What-"

"Serial killer's always hard. You have to wait for them to make a mistake."

"We can't just wait!"

"Oh we've done waiting just look. Really look. Houston we have a mistake! Get on to Cardiff, find out who Jennifer Wilson's family and friends were."

"Yeah sure, but what MISTAKE!"

"PINK!"