Plot hole: Angela comes into the autopsy room to inform Hodgins and Cam that Brennan is awake. Cam says that Brennan said the entry wound was cold and Hodgins comes up with the ice bullet theory. But how did Cam know what Brennan said about the cold if she didn't already know Brennan was awake?
Suggested correction: Bones told Booth that the entry wound was cold when she woke up. It's only fair to assume that Booth called Cam and told her.
But then, Cam would know Brennan was awake making the whole point of Angela coming in to tell them pointless. Plus with Cam knowing Brennan is awake, why would she not tell Hodgins?
I'm rewatching and have been looking for an answer as well. I think it's just a continuity error. If Booth told Cam, she would've told Hodgins, and when Angela walks in to ask if they made any progress, Cam would also tell her. Having Angela tell both Cam and Hodgins that Booth told her, then seeing them relieved and having Cam mention Brennan saying the shot was cold makes no sense other than they wanted to keep it as a dialogue instead of a monologue. Which makes it a pure error.