Crowley: Something's changed.
Aziraphale: Oh, it's new cologne. My barber suggested it.
Crowley: Not you. I know what you smell like. The Hell Hound has found its master.
Aziraphale: Are you sure?
Crowley: I felt it. Would I lie to you?
Aziraphale: Well, obviously. You're a demon. That's what you do.
Crowley: No, I'm not lying. The boy, whoever he is, has the dog. He's named it. It's done. He's coming into his power. We're doomed.
Aziraphale: Well, then... welcome to the end times.