The wound looks like an angel blade, but the point of entry is wider.

You shot me.

(CASTIEL stands in the doorway.)

Yeah, okay. Well, just let me know what you find out.

No, I don’t. I never knew my father. He was distant, to say the least.

I know they do. But I don't regret what I did, even if it costs me my life.

Claire, you are not going out there.

Which is all well and good, except... well, what if I've made the wrong choice? How am I supposed to know?

It's angels and demons, probably.

Yeah, I think so. But I don't understand what that has to do with heaven.

You asked me to be here, and I came.

I do.

And -- and we are going to find Dean and we are going to beat Michael and we're going to do it together. We -- because that's what we do.

Dean -- the bunker's vault has a number of Enochian texts on archangels, but nothing on their half-human offspring.

(CAS stares death in the eye.)

What if I fail again?

I only brought Sam and Dean.

Yeah. It's like we're stepping into a Saturday Evening Post.

Thank you for coming. And thank you for coming alone.

Meet me here.