I swatted my arm at the irate buzzing beside my head. It didn't stop so I sat up to shoo the fly away before realising it was my phone.

"Townshend," I snapped into the phone.

"Sorry to call so late Jess, I just didn't know who else could help," came back a familiar and tired voice.

I sighed and pushed the nest of my hair out of my face, "What's up G?"

"We've got three bodies, all in one place with blood poured out of everywhere."

"Why are you calling me?" I asked in slight annoyance.

He inhaled deeply, "There's some kind of diffuser in the room, a disease bomb if you like. I think it's a bioweapon."

I sat bolt upright, "Secure the room, hazmat suits only and anyone who has been in there unprotected needs to be quarantined immediately. Give me the address and I'll be there," I dragged myself out of bed and began pulling on clothes.

Dragging a comb through my hair and then putting it up with a clip I took down the address from Greg and scooped up my home-kit. I rushed out of the house and into my car before speeding off in the direction of the scene.

When I arrived there was a white tent in front of the entrance and two ambulances were leaving with what I assumed to be quarantined people. I pulled out my ID in case but was stopped by a woman with a large mass of curly dark hair.

"No press. No comment."

"Officer Jessica Townshend here to see D.I. Lestrade," I narrowed my eyes at her and waved the ID in her face.

She rolled her eyes and got out a radio and called for Greg to come out to get me. I tapped my foot impatiently, the womans attitude getting up my nose.

"Jess," Greg jogged out in his hazmat and I nodded back a greeting.

"Did you let my sergeant know?" I asked.

"Of course I did, do you think I'm an idiot?" he replied and ushered me into the airtight white tent.

I pulled on a suit over my jeans and blouse and he zipped a helmet to the hazmat.

"Who's in here now?" I asked him.

He looked at me, "Anderson."

"Really? You honestly let that moron in here. Keep him out of my way G," I groaned.

"He's our forensic, I can't move him around for you," he shrugged.

We made our way through into the living room of the house where the bodies lay sprawled. Blood had seeped into the carpet, cushions, curtains and pretty much anything absorbent. There were huge pools of red around each victim. In the middle of the room stood what looked like a homemade dehumidifier.

I bent next to the closest victim, "Can I move them?"

Greg nodded and I pulled on her shoulder until she turned over. Petechial haemorrhage, her lips looked almost white and dried blood crusted from her mouth, nose and ears. I moved further down her body and saw that the beds of her nails were crusted with dry blood. I swabbed the blood, took a sample of the skin from inside her nostril and moved onto the other bodies. Each had the same symptoms and I did the same to them all. I looked at the diffuser.

"Why Jessica that suit is rather flattering," a voice came from behind me.

"Do me a favour and back off, Anderson before I feel too tempted to rip that helmet off," I snapped, remembering how awful he'd been to work with years ago.

A dark chuckle came from behind him and another figure stood in a hazmat.

"Christ G, how many people are you parading through here? There's a serious disease in the air and you're just letting anyone come in?" I rounded on Greg.

Before he could answer, the tall stranger shoved past Anderson and came to stand near me.

"Anderson, leave, no one wants your opinion," the stranger snapped in a voice I vaguely recognised, and to my disbelief Anderson threw his hands up and actually left.

"I'm done here Greg, can you have everything sent to Barts for me to look into," I didn't wait for his answer and just left.

I disinfected in the tent and went to sit in my car, where I considered how rude I'd been to everyone. It was only because I was tired, I groaned. G has been my friend since a case years ago involving a rare disease I forget the name of now. Resolving to text Greg and apologise for the way I treated him, I drove home to try and get some sleep before I went to Barts to look into this properly.