Sam was angry. His brother was dead… again. This time was different; he knew Dean wouldn't come back…Sam had been up for hours trying to summon Crowley. "Come on you son of a bitch. Show yourself!"
"Hello Moose." Sam looked up to where the British accent had come from.
"You son of a bitch, you got him into this now you go in there and – "
"I'm afraid I can't do that Moose… Dean is, shall we say…I'm going to take him under my wing – "
"Under your wing? Crowley, he's de – "before Sam could finish, Crowley was gone. Unsure of what was going on, he ran to Dean's room to find it empty. Sam ran around the whole bunker looking for his brother. "Damn you Crowley! Where are you?"
"Boo." Sam turned around to see Crowley standing there with Dean behind him, he noticed something about Dean's eyes…they were black. "Crowley, you son of a bitch you get your black eyed freak out of my brother." Sam looked furious; he knew Crowley must've burnt off Dean's tattoo. "Moose…I don't know how to tell you this so I'm just going to put it like this, Dean isn't possessed." Realization washed over Sam's face as he looked at his brother, the mark on Dean's arm started glowing. "Look at the time, we ought to be going. Goodbye Samantha." Crowley winked at Sam and in the blink of an eye, they were gone. Sam couldn't move, he didn't know what to do. He sank down to his knees and started to cry. "Cass? I need you man… I need you."
"Sam? I'm here." A figure in a long, brown trench coat was standing behind him. Castiel.
"Cass I need your help, its Dean."
Castiel sighed, "Sam, I told you I can't heal –"
"Dean's a demon Cass!" Castiel couldn't believe what he was hearing; he started striding back and forth. Sam waited patiently although his patience was escaping him considering the fact that his brother was a demon; he knew Castiel was deep in thought. "Of course," Castiel's sudden outburst made Sam jump, "it must have something to do with the mark of Cain –"
"So that's it? Right, we find Cain and –"
"It'll take time Sam, he's well hidden and he's a knight of hell."
"Whatever it takes…and this time, we're putting Crowley down. Permanently." Castiel looked at Sam, fearing that he may turn back to his demon blood-thirsty ways. In the blink of an eye, Castiel was gone. In the blink of an eye, he was back. "Where'd you go?"
"I just searched every library I could find." Sam looked at Castiel in a way that said Are you serious? "Cass…you do know this whole bunker is filled with books." said Sam.
"I meant on Heaven, there are numerous libraries. We have information that could not be found on Earth. I may have found a way on how we can find Cain, it involves your blood."
"My blood? What? Why?" asked Sam, with a puzzled expression on his face.
"The blood of Adam and Eve flows in your veins."
Castiel and Sam extract some blood from Sam's arm and pour it over a map. Castiel mumbles some words in Enochian, he then throws a lit matched onto the blood. Suddenly, the blood burns away the map until one state is revealed. Texas. As Castiel put his hand on Sam's shoulder for them to teleport, Sam couldn't help but think to himself We need you Dad.