Okay, so I really don't know much about Human Biology and medical procedures and stuff like that, so I'm having to resort to research. I haven't seen House in quite awhile either, so if any of it seems a bit OOC, please let me know!

Disclaimer (because it wasn't included in Chapter 1 or Chapter 2): I don't own House or Sherlock or any of the characters.

"Good morning team! Or should I say "conglomerate collective of people who honestly look as though they don't give a crap"? Lighten up; we have a case to solve!"

Dr Cameron lifted her head up from the desk and stared as her boss wearily, "House, it's 2:00AM and none of us want to be here. Just tell us why we're here and not at home sleeping."

"I just told you," replied Dr Gregory House as he limped over to his whiteboard, "We have a case to solve."

"At 2:00AM?" asked Dr Chase, looking ready to throw a punch at House for dragging him out of bed that early.

"Yeah, at '2:00AM'. And if you'll all just shut up for a few minutes I'll tell you why."

"What can we do now that we can't do in a few hours?" inquired Dr Foreman, looking less angry than Chase but just as tired.

"A post-mortem."

"A post-mortem?" exclaimed Chase, standing up, "I'm going back to bed." He began to make his way towards the door but stopped with his hand on the handle as a small cylindrical object hit the wall less than an inch away from his head.

"You're not leaving," ordered House, pointing his cane at Chase accusingly.

Chase turned slowly, not taking his hand off the door handle, "I swear House; I will not be responsible for what I do to you if you throw another whiteboard marker at me."

In what should have been an entirely predictable response, House picked up a second marker and lobbed it towards Chase, who jumped back just before it landed where his feet had been.

"That's it."

"Chase, sit down. House, quit being a pain and explain exactly why we're here," Foreman swiftly intervened before Chase could retaliate.

Chase glanced at Foreman before shooting a murderous glare at House as he slowly lowered himself back into his chair.

House stared at Foreman curiously; "Thankyou, Dr Foreman, for doing my job. Chase wouldn't have left anyway; he values the money and close proximity to Cameron too much."

There was a brief moment of silence as Cameron and Chase glared at House.

"Are you saying you would've fired me if I'd walked out that door?" Chase asked eventually, deliberately not rising to House's taunt.

"I'm saying you wouldn't have left," as he replied, House began to write on the board with the last whiteboard marker, "Anyway, fun time's over. Let's get down to business." House turned to face his medical team and pointed at the word he'd written with his cane: TIME.

"2:00AM," called out Chase, earning him a warning look from Foreman and a glare from Cameron.

"What?" he asked his colleagues.

"Will you shut up?" hissed Cameron, "We don't want to be here either, but at least we're not being juvenile about it."

"Fine, whatever," Chase rolled his eyes like a moody teenager and Cameron turned away from him with a noise of disgust.

"As I was saying," began House as he turned back to the whiteboard and wrote something else, "This is why we're here." He turned to reveal the words + POST-MORTEM written next to TIME.

"Well..." said Foreman.

"I'll give you a hint," House interrupted without giving Foreman a chance to finish speaking, and added an sign to the board.

"Well..." Foreman started again, "...it takes ..."

Wrong! Next," House exclaimed, shifting his gaze to Cameron.

Cameron frowned slightly, unsure of what House was trying to tell them.

"It gets less reliable the longer you leave it?" she eventually suggested.

"Bingo!" House exclaimed, sounding as though he was more irritated that it had taken his team that long to figure it out than triumphant that they finally had.

"So we're doing this post mortem now because otherwise it won't be reliable?" asked Chase, "How old is this body?"

"It's just been flown in from Britain, where the guy lived until his death three days ago," House explained, "So this autopsy needs to be done pronto. Cameron and Foreman; I need you to come with me to begin the procedure. Chase; I need you to head down to the lobby and make me a latte."

"You can't be serious. I'm not making you..." Chase started to object, but stopped when the door suddenly opened and Dr Wilson walked in.

"You're late," House said accusingly.

"It's not my fault!" Wilson exclaimed, "They wouldn't leave until I let them in!"

"Who?" asked Cameron, confused, as two strangers walked through the door after Wilson. One of them was taller and wore a long coat with the collars turned up, whilst the shorter one wore more comfortable-looking attire.

"Hello," began the taller one, "My name is Sherlock Holmes, and I believe you have my body."