Dean stood in front of the Bunker door. He was afraid to knock. His body had start aching shortly after killing Amelia. He made it half way before killing a dozen more innocent souls and carving a D into their chest.

2 hours after that he killed more. He doesn't kill anymore and now he stood at the door of the bunker. He lifted his hand nervously then began to knock on the metal door. Now he waited. He heard the door begin to open. It was Sam.

"Sam…"

"Hey, Dean."

"Where's Cas?"

"I'll bring you to him, come on." Sam waved him in.

"You probably want me to drop all my weapons." Dean glared.

"If you wouldn't mind." Dean nodded and pulled all is knives, guns, pick locks, and pig stickers off him. "Even the Holy Water."

Dean nodded and dropped the bottle. "Now where is he?"

"Just come on." Sam walked towards the demon files hiding the dungeon. Once close to the room Sam spoke up. "He's helping me find this one powerful demon."

"Sam, you're not gonna call the cops and have been put in prison or the nut house, are you? You're not gonna lock me up in there?" Dean asked.

"No, I wouldn't do that. You're gonna get better." Sam exclaimed. "Now the demon we are hunting is very powerful."

"Who?" Dean asked with a hint of excitement.

Sam looked around and Cas was ready to dragged Dean in the dungeon. "Sonneillon."

Dean's head whipped around to Cas who plowed into him picking him up and throwing him into the dungeon and closing the door. "What's going on here?" Dean yelled.

Cas had constructed a door replacing the bookcases so that Sam and him could see inside the room without opening the door. "We had to do this, Dean. It's for your own good." Cas explained.

"You said you wouldn't lock me up." Dean yelled banging on the door.

"There's no getting out. The Men of Letters were smart." Sam said.

"You promised." Dean yelled.

"I'm trying to help you, Dean."

"Let me out of here, Sam!" Dean banged the door.

"Dean, this will only be a few days." Cas answered.

"Let me out or I swear to GOD I WILL RIP YOU LUNGS OUT!"

"See, Dean, you're not well." Cas said.

"I WILL TEAR YOU APART! LIMB BY LIMB!" Dean yelled.

"We will talk again later, Dean." Sam said quietly.

"No, you can't leave me here. I'm fine, Sammy. Please, let me out." Dean begged.

Sam closed the file room door with tears rolling down his face. He hadn't cried this hard since Dean's death or Madison. Sam looked at Cas. "When will we know Dean's better?"

"You heard Dean in there. Half of the things he was saying didn't sound like him. Once we know it 100% Dean. We can't let him out."

"How am I supposed to know that. Dean acted completely like himself until we locked him up."

"Dean will have to eat soon, he will have to drink soon, he will have to relieve himself soon, and he will have to sleep soon, only time will tell when he starts to beg for those things. Right now being under the control of Sonneillon all he is thinking about is his anger and how to get out. Once the control starts to fade he will realize that he is hungry, then thirsty, then he will feel the need to use the bathroom, but the control will be completely gone when he slips into unconscious from lack of sleep for so long."

"So basically Dean will starve, dehydrated, shit and piss himself until he conks out and then we take him out of the dungeon?"

"Yes." Cas replied walking down the hall.

"This is so messed up." Sam sighed.

"It's the price we have to pay to cure Dean." Cas turned around to look at the youngest Winchester.

"He's gonna be ok, right?" Cas just stared at Sam. Sam walked quickly over to Cas. "He's gonna be ok, right?"

"I'm not sure."

"You're not sure?"

"I know Dean will survive, but what I don't know is what will happen to Dean mentally."

"Are you saying that Dean might be vegetable?"

"No, I'm saying that Dean might freak out about killing all those people and might be the shell of the man you know."

"That's the risk we are gonna have to take then." Sam said looking back at the door to the dungeon.

"No, Sam, don't go back in there. You will only get more upset. Dean will say things that will get under your skin. He will find anyway to make you yell at him. He will feed off your anger."

Sam's head dropped to his chest. "Dammit."

&^%$# !#$%^&*&^%$# !#$%^&*&

17 hours and 34 minutes Later…

"Sammy! I know you're out there! I know you're hearing me!" Dean yelled still banging on the dungeon door.

Sam was still in the hallway but he was sitting on the ground and his knees were curled to his chest. "No." Sam whispered. Tears stained his face and he felt empty.

"Come on, Sammy. Let me out! This isn't funny anymore. The jokes over. LET ME OUT! SAMMY! OPEN THE FUCKING DOOR!"

Sam buried his face in his knees. He heard footsteps coming towards him. "Sam?"

He looked up and Cas was standing in front of him. "Cas…I can't…"

"Come with me."

"I can't leave him."

"He can sense you." Cas looked at the file room door and stretched out a hand towards Sam.

"Cas! Is that you? Come on, buddy, LET ME OUT!" Dean yelled.

"Come on, Sam. We shouldn't be down here."

"COME ON! SAM, CAS! LET ME OUT BEFORE I CLAW MY WAY OUT OF THIS FUCKING BOX!"

"Cas, I can't leave him."

"The longer you are down her the longer it will take him to heal."

"CAS! LET ME OUT!" Dean banged on the door again. "CAS! IT HURTS!"

"What is dean talking about, Cas?"

"I told you that this cure is painful. The longer Dean goes without killing the more pain he will be in." Cas pulled Sam to his feet and dragged him down the hall.

"NO! YOU CAN"T LEAVE ME ALONE DOWN HERE! SAMMM!" Dean banged. "SAMMY! PLEASE! HELP ME, IT HURTS!"

"Cas, I can't leave, Dean." Sam tried to walk back to his spot in front of the door.

"No, Samuel. I told you right off the bat that you could do this."

"It's easier said than done, Cas. He's my brother."

"And he's the love of my life." Cas snapped. "You don't think this hurts me as much as you. You're not the only one at fault for this."

More tears streamed down Sam's face. He looked the hall tot eh demon file room door and heard the bangs of Dean's fists against the metal.

"SAMMY! PLEASE! LET ME OUT! IT HURTS SO BAD!" Sam shot puppy dog eyes at Cas, but he was cracking. "SAMMY! YOU PROMISED!"

"I'm sorry, Dean." Sam whispered and walked away with Cas.