Castiel stared at his palm for a second longer before he dismissed the thought altogether. Yes, he was willing to bet the line that she was reading wasn't his. It was the vessel's.
Following her instructions, even if he didn't quite understand the need for the belt, he did as he was told. His brow furrowed deeply as she ate the pie, and watched as she began speaking. A weakness. They had a weakness? Castiel was too cautious, too cynical lately to believe that this was it and they would be done, but he did feel a small flicker of hope at the realization that maybe this was a hint. Was it possible that they could have a bit of a clue on something that they could use?
Keeping a close eye on her, ready to stop her from standing if and when necessary, he continued listening. A wolf and a slayer. "What do they need to do?"
The idea of putting at risk more people felt like it was choking him, but they had come this far. He couldn't stop here and not find out at least more answers. Because, if they were to truly go through with this, he was going to need more details.