Sam won't wake up, and Dean is desperate for a cure. Castiel presents a solution, but it's risky...
Castiel showed up almost immediately after Dean called out his name. Castiel did a quick diagnosis of Sam. He put his hand on his chest, looked into his eyes, did a mind sweep of his conscious. The usual angel check up. Then he turned to Dean.
"The angel blood is slowly shutting him down." Castiel said softly. "In any normal human, they would go through a mini purification process, but since Sam has demon blood in him, it's killing him from the inside out."
"Is it mine?" Dean asked. The deep look in his eyes said to Castiel that this was only thing he really wanted to know. "Is it my angel blood that's killing him?"
"Yes." Castiel said. "Before whoever it was who turned you human, but left you with your powers."
"How do we save him?" Dean asked.
"Dean I-"
"How, Cas?" Dean demanded. "My angel powers can't heal him, and I can't just leave him, so what am I supposed to do?"
Castiel took a step back when Dean advanced on him. He held up his hands. "Dean, the only way that I can think of to help your brother is…"
"What is it, Cas?"
"Give him the means to fight back. Give him what makes him stronger."
"You mean, demon blood?" Dean's voice was raising. "Are you serious?"
"It makes sense Dean and you know it." Castiel shot back. "That's the only way I can help you Dean. I'm not seeing any other choice."
Dean looked away from Cas, worry and sadness in his eyes. He looked at Sam's pale sleeping form. He was breathing really slowly, and so deeply that it looked like he wasn't breathing at all. It almost looked like he was dead.
"But Dean, I should tell you," Castiel said, also a look of sadness on his face. "At this stage of the process, Sam doesn't look like he has very long. If you are going to give him demon blood I suggest one that is high in ranking."
There was no reply from Dean for a long time. His back was turned to Cas, so he couldn't see his face.
"How high?" Dean asked suddenly.
"I would suggest either a tedlar, or an inferno-" Castiel thought. But Dean cut him off.
"How about an arch demon?"
"Dean one of those will be very hard to come by." Castiel shook his head.
Dean spun around, his face dark and serious. "You've got the equivalent of one standing right here."
Castiel stared at Dean, then finally understood what Dean was getting at. "Dean your powers have increased ten fold since you got your demon essence restored to you. You're way past the ranking of arch demon."
"But I won't technically be a demon." Dean reasoned. "I'll just have the powers of one."
"No Dean. The essence also has influence over the mind and the body, not just the soul." Castiel countered. "Imagine all that power being converted to demon form, and then the same transformation process happening in three minutes. That power and madness will be a much greater threat to humanity."
"Then you can just remove the essence before I lose control." Dean said. "You guys removed it before, you can do it again."
"Even if we could extract and contain that much power-"
"I know you can." Dean said, passive.
"Alright, but if we did, it would not only be a very difficult and dangerous process for us, but also very painful for you." Castiel had a warning tone.
"I don't care," Dean looked at Sam. "If one drop of my demon blood is all it takes to get Sammy better, then I don't care."
"Dean this is very reckless and dangerous." Castiel continued.
"You're not going to talk me out of this idea, Castiel." Dean shook his head with finality. "Get the people and things you need. We do this tomorrow night, or as soon as possible."
Castiel stared at Dean, and then finally nodded. Castiel turned to go, but Dean grabbed his shoulder.
"Cas, if the worst happens, and I escape and loose control, then I want you to…"
"It will be difficult, Dean, but I promise I will kill you before you end the world." Castiel said monotone.
Dean nodded is head once, and let Castiel go. When he was gone, Dean turned and walked over to Sam's bedside. He placed a hand on his sleeping brothers shoulder.
"Don't worry Sammy." Dean said softly. "I'm going to make you alright. Just you wait and see."
Castiel returned a couple nights later. There were several dozens of angels with him. They all looked at Dean with an expression between fear and respect. Dean couldn't blame them. This was probably going to be the most dangerous thing the angels have ever dealt with. Dean didn't care. If it meant saving his brother, then he'd do it ten times over.
They took Dean to a very secure place. And by secure, Dean figured Armageddon lock down, from the inside. Salt and iron were the walls and floor. Holy water icicles were hanging from the ceiling. Binding seals were everywhere. Dean observed curiously how the devils trap that covered the center of the wide floor had ten points instead of five. The high ceiling and the far spaced walls, Dean thought they might have been over compensating.
"Don't be so sure." Castiel said. "Your demon form now will most likely be cramped in this building."
Dean didn't even look at Castiel. He just nodded, and stared at the icicles.
"We ready to do this?" He asked, facing Castiel and the rest of the angels. The angels stared at the human-turned-demon, turned-angel, and about to be turned-demon again.
"Are you ready Dean?" Castiel asked, a sad look on his face. "You do know, that if we don't accomplish this, then we will use what ever means to stop you."
"The main thing that matters is that some of my blood gets to Sam." Dean gave all of them a hard look. "Doesn't matter if it's from the arm or the jugular, just so long as it's red and fluid."
While the others got into position, Dean and Castiel went over the plan. They would change Dean's angel essence back into demon essence. This in turn would trigger a chain reaction throughout his being, and turn his soul, mind, and will to that of a demons as well. With all these changes, it will start a very fast-and very painful-transformation. After the transformation, they had to restrain him and get some of his blood. The last step would be to subdue him, and extract the essence, once and for all. Castiel would then take the essence and have it destroyed.
Angels were posted everywhere. Some were flying outside the huge devils tap, some were in the rafters of the ceiling, and many were outside. They didn't know what a demon of Dean's level's true form was, and had no idea the strength it possessed. Extra precautions were taken, and extra precautions on those extra precautions were also taken.
Dean took his spot in the center of the circle. He could feel the power seeping through the devils trap on the floor. It was hefty, but was it enough to conceal Dean?
Dean couldn't go back now. It had to be now. Sam didn't have much longer, and there was no other way. He turned to face the front of the room. Castiel stood ready. Dean nodded, allowing him to begin.
Castiel started chanting one line, and after each set of lines, more angels joined in. Dean felt the blood rushing through him, starting at his heart, and spreading through his limbs. The feeling of his blood moving through his veins was very unsettling. The candles that were lit around the room started to go out, and Dean winced a little at the rising in is heart rate, rushing his blood uncomfortably throughout his entire body.
The angel chanting grew in volume, and towards the end, Dean's ears were ringing and he was seeing red. The angels finally rang out in one final word, and silence followed after. As soon as the angels stopped chanting, the sensations Dean was feeling ended. All the angels took their battle ready stance, and looked at Dean like they were waiting for him to explode. But Dean felt nothing. In fact, it still felt like his angel powers were still intact.
"You sure you got all of that, Cas?" Dean quirked his eyebrow.
"Absolutely." Castiel glared at Dean. He too, had his angel knife drawn.
"Well, it seems like your order is incomplete."
"Don't be so sure, Dean."
Dean licked his lips and froze. His teeth had sharpened into jagged fangs. When he looked down, his hands had claws as long and thick as a chap stick tube. His skin was turning a dark gray, and a strange inner red light was shining underneath. Dean stared dumbfounded at his arms, as the change quickly spread over his body. Then the pain finally came.
Dean crumpled to the ground and tried to suppress a scream. When he opened his eyes again, molten red light deluded his eyes. The light leaked from his eyes, and that horrible glare was equaled with an even more terrifying roar.
A/N: Yeah, I'm trying to keep this story from dying, and one way to do that is to turn Dean into a demon again! haha but it's not like the story is going to start all over. I'm pretty sure that its all heading towards one big conclusion, whether that's five or fifteen chapters from now. So next chapter should be soon. Read, review, and enjoy!