Once the bonfire gets going, which may be soon, please don't feel like you need to keep everything in the initial thread. Feel free to break off smaller threads if certain groups are congregated and having a discussion. It'll cut down on confusion at the very least about which characters are talking to each others. I guess as a rule of thumb, assume that if you're in the same thread with someone at the bonfire that you can hear and be heard, but if they're in a different thread you can see them but can't overhear them. Not trying to make things too complicated (and possibly stating the obvious), just trying to avoid some of the confusion that usually comes along with "big event/party" type threads.
If something happens in one of the separate threads that the other threads might notice (for example, if Gemma were to take to the air in dragon form), go ahead and use this thread to draw attention to it so that other characters can react as needed.