[ One meeting was enough. Every angel knew Lucifer's story. He fell because he couldn't love humanity, Castiel... that was never his problem. They stood on opposing sides, speaking with him wouldn't change that and he wouldn't put Sam through that ordeal without something to gain.

The look of relief is something difficult to watch. He left him in that cage knowing full well the torture he'd endure. Asking him to interact with that part of his life was not something he was willing to do so easily. Not after abandoning him once before. ]

Considering what's happened to you, I'm surprised you have any left. The angels...

[ He trails off, his mouth closing to a grim line remembering all those times he tried to reason with them, clashed with them. In the beginning, he was no different following orders without question, so willing to defend a faith that kept unraveling with every order handed down to him. ]

I... don't expect you to. I'm as much in the dark as you are Sam.

[ He sets the leather volume back on the stack of books he had yet to read. ]

This is all I can offer. I'm sorry I can't be of more help.