The end before the beginning

Castiel stood up stark straight there in the bunker's library. He felt it all. The living and the dead singing choir of the storm. He saw the end before it had begun. Where Sam would be taken, what it meant.

He heard the cry of Sam's heart and it froze his blood. Not only for the pain of it, although the pain of it was immense. But because of the name of it.

DEAN! Sam's spirit shrieking from away in Eternity from the bookend folds of time.

"I don't understand it...I've been calling him all day. I know that we argued. And Sam, he can be a jackass sometimes. But he's...Well, I'mma sound like a girl but he's my jackass...Why would he scare the Hell outta me on purpose?! He knows better than to do stupid crap that makes me climb the walls." Dean paced, hands tearing at his hair.

Castiel's heart broke. The cracks ran like fault lines and stabbed him in several places. He felt a smothering sensation overtake him. It was a fragment of a second and it was gone before it came fully into view. The sanctuary with the open spell books and burning altars. The cage for the gnosis of pagan madness.

"Cas? You okay, buddy?" Dean had taken Cas by his arms.

DEAN! The mournful voice still burdened with the pains of Hell called out to him from the blood in his veins. Castiel felt his stomach flip flop in his ears. Then, the urgency rushed into his blood, the more human part of him taking over. Somehow he knew what needed to be done.

"Dean, you should...you should call your mother." Castiel nodded.

Dean's eyes popped wide open, flashing green like the first spring made sick as he realized the implications of what Cas was saying.

"What would she have to do with this? She-She ditched me and Sam like a week ago to work with the Brits." Dean sputtered.

Cas took Dean's face in his palm.

DEAN! The voice wailed a third time echoing through Cas' grace and ripping him molecule from molecule.

"Dean, call your mother…."