Taking place after season nine finale

CHAPTER ONE

Man, my head hurts.

That was the first thought that had come to Dean's mind as soon as he regained consciousness. He remembered seeing Crowley and him saying something about going to howl at a moon but that was it. He felt something drip down the back of his neck and went to wipe it off when he realized he couldn't. Dean's eyes flew open as he took in his surroundings. His wrists and ankles were tied to a metal chair that was bolted to the floor. He looked around. No windows, always a good sign. He figured the door was on the wall behind him when there were no exits on either the three walls he could see. Just as he could feel the panic starting to sink in, he heard the door behind him creak open. Trying to look over his shoulder, someone ruffed up his hair and stood behind him.

"Show yourself you sonofabitch!" Dean spat.

Dean cringed as the person behind him laughed and grabbed a hold of his shoulders.

"Dean, Dean, Dean… You kiss your mother with that mouth? Oh… I forgot."

Dean's face paled and sweat formed on his forehead. He knew the laughter. He heard it often when he was in Hell. It still plagued his nightmares even to this day.

He made his way in front of Dean placing his hands back on Dean's shoulders and smirked. Dean couldn't believe it. He saw Sam kill him. He saw it.

"What? You aren't happy to see me? But Dean, we were so close. I thought of you as a son." The sarcasm was laced into his words as he took a step back crossing his arms across his chest.

"How…" Dean breathed still trying to get his thoughts in order.

"Let's not cloud this reunion with technicalities. The King of Hell thought I could be useful so he pulled some strings and here I am."

"What does he want?" Dean snarled.

"He wants to break you. Get that pesky humanity out of the way so the fun can begin." Alastair continued to laugh as he walked out the door leaving Dean alone with his thoughts.

...

He was awake. He was safe at the bunker wrapped in his blankets. Granted, his pillow was soaked from how much he was sweating, but safe none the less.

A dream. That's all it was.

Dean groaned as he hauled himself out of bed only to be stopped by a sharp pain in his head. He touched the back of his scalp to feel a sticky substance coming from it. Pulling his hand back, he stared at it in disbelief. He glanced back at his pillows and low and behold, it wasn't soaked in sweat, but blood. Dean turned back to his hand and gasped when looking at his wrists to see rope burns.

It was real. Alastair's alive and I'm so screwed.

...

He thought about yelling for Sam, but knew it wouldn't make a difference. Sam hadn't given a shit about him in months. Why would he care now? It was just something Dean would have to deal with, alone, as always. He rubbed absently at the Mark of Cain as he went to the bathroom to shower. Dean couldn't quite place it, but he felt a new sense of power in him. He felt stronger and ready to kill.

Sam jolted out of his state of hysteria when he heard the shower running. Had Cas come in the middle of the night? Drawing his gun he headed towards the now stopped shower. Just as he rounded the corner he saw a figure crouched over Dean's bed, hair dripping wet. Sam's eyes glanced at the now empty bed and the familiar build of the man.

"Dean…?" Sam whispered thinking it was a hallucination like the one's in his dreams last night.

Dean spun around; gun pointed directly at Sam only to be lowered just as fast once he recognized him.

"Sammy." Dean said with a smirk. "Miss me?"

But Sam still kept his gun raised. The only reason being was the now pitch black shade of Dean's eyes. This couldn't be happening. Not to his brother. Not to them. We were just starting to be brothers again.

Dean looked puzzled. He put his hands up showing he meant no harm. "Everything okay little brother?"

"You're not my brother," was all Sam said before he shot Dean in the shoulder. Lucky for Sam, he had carved a devils trap into the bullet planning on using it on Crowley but he had never shown up. Dean cried out in pain as he fell to the floor gripping his shoulder. He looked at Sam with betrayal and confusion once he realized he couldn't move. He was stuck in the position he had fallen in.

Sam walked over to Dean drawing the angel blade and grabbed his collar, yanking him closer. "Who are you and why are you possessing my brother you son of a bitch!"

"Sam it's me! What the hell's the matter with you?! I'm not possessed!"

"SAM STOP." Sam spun around to see Castiel rushing in the room and grabbing Sam's arm. "It's him Sam. That's your brother in there."

Sam glanced back and forth from Dean and Castiel trying to make himself calm down. Cas then proceeded to drag Sam out of the room and closed the door behind them.

"That's not Dean."

"Sam, yes it is. The Mark of Cain… Had more of an affect then we originally thought it was going to have. The mark doesn't want to let go of him. It brought him back. His soul has been corrupted. I've never seen a soul as twisted as his is at the moment; it's even worse than yours was when it was pulled from the cage."

"So what are you saying Cas? That's he stuck like that?!" Sam practically screamed

"What I'm saying is that we need to figure this out. We can't help him if you have your head shoved so far up your ass that you don't realize how bad this is."

"We know how to cure a demon. Hell, we almost cured Crowley not even a year ago!"

"The keyword there is almost." Crowley appeared next to Cas in the hallway.

"You son of a bitch! You knew this would happen!" Sam fumed lurching towards the King of Hell.

Crowley took a step back, hands raised. "Moose, do you really think I knew about this? I never lied to your brother. I only recently became aware of this alternate ending. But may I remind you two that Cain wasn't a normal demon. That little demon killing knife of yours didn't do a thing on Cain. Dean became a demon the same way Cain did, so I doubt any of the normal torture devices will work."

Cas nodded as if deciding what he was doing was right. "Then we need to find out. We will save Dean Winchester."

TBC

Reviews are appreciated seeming as though this is my first story!