Cat is in the camp, the girl is gone, Halsin got taken.
I was actually wondering what's the point of that bit, seems like it's bugged.
Because if the only reason that Yenna has been introduced is to spare the player the loss of a companion, then... Why? It's a random child we can barely interact with - I think a companion being taken is a much batter option, considering the fact that even if you don't like that particular character, it still has gameplay repercussions.