The Doctor and Rose were helping out the Winchester brothers. It wasn't the first time The Doctor had helped them out, but Rose had never met them before.
"Well...I think we would be able to cover more ground if we spit up." The Doctor suggested. They had been hunting this demon for an hour now, and they had come up with nothing. "I mean it must be here somewhere. I can use the Sonic to track it down."
Sam and Dean shared a look with each other, communicating with their eyes, which was something they were good at. Dean turned to The Doctor with an answer "Alright. Doc, Blondie, Stay together." He ordered, pointing to the two of them as he said it.
Sam held out a walkie-talkie to Rose "If anything happens, if you find it, use this." He said slowly, not really liking the idea of them splitting up
Rose took it and hooked it on her belt, before turning to the cocky one in the green jacket "It's Rose, Not Blondie." She hissed, glaring at him.
The Doctor took Rose by the arm and pulled her away before Dean could respond. "Come on. Lets find us this demon." He murmured sceptically, adjusting his black suit jacket, feeling as if it would bring him bad luck, just like it always seemed to do.
"Why are you still wearing that thing? That was yesterdays outfit." Rose asked.
The Doctor looked at her, and smiled his secretive smile "I didn't have time to change." He said casually, running a hand through his impossible hair.
Dean whistled under his breath, impressed by the girls attitude, and chuckled to himself.
"What?" Sam asked a little too quickly, concerned about his reaction.
The face Dean pulled then was one of forced composure "She...She's quite a looker." Dean said matter-of-factly, before turning to go the opposite way that the Doctor and the Blonde went.
Sam hurried after him, leaning closer as if to drill his sentence into his elder brothers head "Yeah...And she's The Doctors friend...You can't go there."
Dean smiled, enjoying the fact that his brother thought it was a bad idea, but honestly, it wouldn't stop him from trying.
"Rose! Look at this!" The Doctor exclaimed, looking at the window sill, his left eyebrow sitting higher than his right as he thought.
She hurried over to have a look, but all she saw was some salt lining the window "Salt? What does that mean?"
The Doctor looked at her, and then used his sonic to scan the line of salt "It stops the demon from escaping...or entering, depending on your preference." He explained, and then he picked up something with his Sonic, something strong. "Huh..." He muttered, scanning the room they were in, until he reached the point at where the reading was the highest. It brought him to a wardrobe.
"Doctor...What are you doing?" Rose asked carefully, inching behind him as he moved forward.
The Doctor didn't look back at her, but he waved for her to back up a bit "Rose...Please stay back." He ordered, before reaching out for the handle "What are you...?" He whispered, looking down at the readings on his Sonic screwdriver, which were unusual.
But when he opened the door to the wardrobe, he found nothing, just a bare, dirty inside.
He turned to Rose, a confused frown on his face, and walked towards her "That's...Where is it? It should have been in there." He said. Truth be told, he wasn't used to dealing with demons, because that was more of a Winchester thing, but he knew that his Sonic screwdriver was correct. It should have been in there.
That's when Rose saw it, A black cloud floating behind The Doctors head, but as she went to say something it moved in, and the cloud of black smoke forced its way into The Doctors body.
The Doctor convulsed his body trying to fight against it, but it was to no avail, it was too strong "ROSE! RUN!" He choked out through the smoke, and then it vanished, and he fell to the ground.
"Doctor?" Rose whispered, kneeling down beside him, but her hands hovered over him uselessly. She had no idea what to do, or what just happened.
The Doctor started laughing, and it sent a shiver down Roses spine. Something was wrong.
"Doctor...?" She asked, touching him on the back as he pulled himself on to his knees.
There was hesitation, and the air between them was thick with the smell of sulphur and the tension of Rose having no idea what had happened.
"He told you to run..." The Doctors voice came out wrong, rough and gravelly as he slowly turned to face her.
Rose was on her feet and against the wall in an instant, a hand covering her mouth to stop herself from screaming.
The Doctor had eyes of black. Just jet black. This was not The Doctor she was talking to.
"Rose Tyler...The Bad wolf...Why didn't you run?" The Doctor asked, standing up, and the smile he shot her was dark, and evil. His hands casually went into his pockets.
"Get out of him..." Rose ordered weakly, as she pulled the Walkie-talkie from her belt very slowly.
The creature who stole The Doctors body chuckled darkly, and ran a hand through its hair, his hair, and almost looked sad for a moment as it spoke "And why would I want to do that? This body...It's not even human. Why would I give up something so...fresh?" It asked her as it stood at the other side of the room, blocked by the giant table between them.
She held the walkie-talkie to her ear, and swallowed back her fear of this thing "Sam? Dean?" She whispered into the walkie-talkie.
The response was immediate as Sam snatched the walkie-talkie from his own belt, the boys were at the other side of the building "Rose? Are you alright?" Sam asked, looking at Dean with a worried expression, and Dean returned it, listening for the response, his hand tightening around the strap of his duffel bag filled with weapons.
Her voice came back through the walkie-talkie close to tears "Please come quickly." Her voice urged them.
Dean waited for Sam to react, but he seemed frozen, thinking of the possibilities of what was about to happen, or what had already happened.
"Sam, lets go!" He commanded, grabbing his brother roughly by the shirt and forcing him into motion, as they headed back the direction they came in a sprint.
"What is it?" Sam asked into the walkie-talkie as he hurried down the Hallways and doors.
Rose swallowed back the sob that threatened to escape her mouth "I-It's got him...The Doctor." She said simply, and she lowered the walkie-talkie, rounding the table in the other direction to The Doctor, who was menacingly trying to get closer to her.
"Oh Rose Tyler...There's so much you don't know about him...About what he's done...The secrets he keeps, all in here..." It pointed to The Doctors forehead, and he cracked a sickening smile "I can see it all...He's a killer."
Roses steps faltered, and it caught her by an arm.
All the Winchesters heard as they neared the people they were running to, was the scream of Rose Tyler, and both Brothers pushed themselves harder, trying to reach them in time, but would they?