Imagine you're in London visiting your old friend Sherlock with Sam and Dean, only to find him possessed.

Word Count: 1192

~

"Yes, I'm so excited! I haven't seen him forever!" You squeal in excitement as the taxi pulls in front of 221b Baker Street. Observing the building, you notice how the knocker on the door is crooked. Typical Sherlock, still purposely keeping it askew to annoy his brother.

Dean rolls his eyes at your anticipation, "You saw him last year, not to mention all the phone calls you've made."

"Yeah, you've spent how many hours talking to him?" Sammy teases.

Blushing a bit, you shake your head, "Not that many considering he usually doesn't talk. He just lets me drone on while he works on a case."

"Aww," Dean bats his eyelashes.

Scoffing, you punch him on the arm, "Stop. Honestly what are you, a sixth grader?"

He chuckles, knowing that he got on your nerves, but leaves it alone. You don't bother knocking on the door, instead opting to open the door yourself.

"Mrs. Hudson! Hello?" 

Soft footfalls inform you of her approach. Smiling, you greet her with a warm hug, happy to see her after so long. 

"Y/n, darling, I didn't know you were coming!" She exclaims, then pulls back to see Sam and Dean.

"Who're these handsome boys?" 

Sam looks down awkwardly and Dean also fidgets a bit uncomfortably. You laugh at their predicament. 

"This is Sam and Dean Winchester. They're good friends of mine." You explain as you walk to her living room.

"Nice to meet you. Now, I know you've come to see Sherlock, but he's not here at the moment. Would you like some tea? I have the kettle on."

You nod and happily sit down on the couch next to Sam and Dean. 

"See, just as I told you, she's the sweetest thing," you whisper to them.

Dean huffs, "Yeah, she's okay."

You laugh and then Mrs. Hudson walks back into the room. She sits and talks with you for hours while awaiting Sherlock's return. You enjoy her company and hear all about Sherlock and John's adventures over the past year. 

Dean sips his tea, but winces as his tongue gets burned, "Ow!" 

"Careful, dear, it's hot," Mrs. Hudson warns him belatedly.

He huffs, "Yeah, thanks, I know." 

You roll your eyes at his antics just as you hear a door open. John walks in, looking a bit flustered, and doesn't seem to notice your presence right away. 

Sam whispers in your ear, "I thought he was taller?"

"That's John Watson, his roommate." You explain.

John looks up at you three sitting on the couch, teacups in hand. It must be an odd sight, to see three flannel-clad Americans sitting on your landlady's couch. One of them a lumbering moose, tall even when he's seated. Another a shorter, but still intimidating, man who looks like he's seen Hell (because he actually has, can't forget that important detail).

"Hey John, how ya been?" You ask with a grin.

He smiles back, a bit disbelievingly, "Y/n? What are you doing here?"

"What? Not happy to see me?" You tease, standing to embrace him.

He hugs you back, "No, of course not! I just can't believe you're here." 

"Well, I am. Where's Sherlock?" You question him, completely forgetting to introduce the Winchesters.

"Um, yeah, I don't know. I haven't seen him all day." 

"Huh, that's weird." You frown. 

Dean clears his throat pointedly, causing you to remember their presence. 

"Oh, John, this is Sam and Dean Winchester. Sam, Dean, this is John." You introduce your friends.

They nod at each other and John shakes their hands, "Hello, nice to meet you."

So, you wait with John and Mrs. Hudson for Sherlock to get back. After a while more, Mrs. Hudson has to leave, so John takes you up to his flat.

~

The door to the flat opens, causing you to sleepily lift your head from its resting position on Sam's shoulder. You looked up just in time to see Sherlock enter. 

He's wearing his usual long dark coat and his blue scarf. Before you can say hi, Dean breaks the silence.

"Where have you been, Sherlock?" He asks in a snarky way.  

Sherlock stares at him without his usual air of arrogance or superiority. Frowning, you can't help but think that something's off about him. 

"I'm afraid Mr. Holmes is unavailable at the moment," He replies in a voice that doesn't sound like his. 

At his bizarre statement, Sherlock's eyes turn pitch black. 

Your reaction is swift, and so is Sam and Dean's. You launch back in horror and grab your knife from your purse. 

Sam and Dean pull out their guns, but you shout at them, "No! Don't! You'll hurt Sherlock!"

Fumbling around your purse, your fingers lock onto your smooth silver flask. It contains holy water, just in case you find yourself in a sticky situation. A situation like this one. 

Unscrewing the cap, you prepare to soak the demon with it. Just as you get there, you notice what's been going on around you. 

The demon has attacked Sam first, knocking him into the wall. Dean attacked then, smashing a book over the demon's head, although it hardly affected him.

Now, you retaliate, throwing water over Sherlock. He screams inhumanely, causing you to wince. Even though you know it's not hurting Sherlock, it still pains you to hear his scream. 

"Quick Sam!" You order, knowing that he knows the exorcism by heart whereas your recitation is a bit iffy. 

He begins chanting in latin, as you hand the flask to Dean. You then proceed to run to the bedroom where you find a rolled up rug under the bed. 

Snatching it, you run back and swiftly unroll it in one smooth movement. Next, you kick over the coffee table and lay the rug down, wrong-side up. 

There on the ragged mat is a red devil's trap. Last time you were here, you educated Sherlock on all things supernatural. You painted the rug with the devil's trap for him just in case. And thank goodness you did. 

You bodycheck the demon into the trap with Dean's help. Sam finishes chanting and you all watch the demon smoke out of Sherlock's mouth. 

"Sherlock!" You yell, checking to see if he's okay. 

He looks up, a bit confused although he'd never admit it. "Y/n, why are you here?"

You roll your eyes, "Hi Sherlock. You know what'd be nice to hear once in a while? 'Hey Y/n, thanks for saving my life.'"

Glancing at Sam and Dean, you finding them smirking and nodding in agreement. Sherlock shoots you a glare, but you just grin in response.

"What happened?" Sherlock asks just as John comes back from the store.

"Dean, I got your beer and pie- Sherlock! Where have you been? What is this mess?" John questions, just as confused as Sherlock.

You laugh as Dean goes to him and grabs the pie and beer. 

"Basically, Sherlock's been possessed, but don't worry, it's all good now." You clarify for the two confused British men. 

"Oh, that makes perfect sense," Sherlock says.

John's mouth hangs open in shock, "Perfect sense? Honestly, I liked it better when there was no such thing as supernatural monsters."

You chortle, "Yeah, didn't we all."