1. Correct me if I'm wrong but aren't Rhaegal and Viserion are living in Mereeneese pyramids, they are in the area at least. They are likely to be attracted by the blood and noise of battle, they will probably show up 2. We don't know if he is the horn's master or not, but he clearly believes he is 3. Firstly, Victarion is dumb. Secondly the horn is supposed to give him control of the dragons, if they're around they're a threat to his fleet anyway so (point 2 not withstanding) he doesn't have anything to lose here These chapters sound great, I am worried about Barristan making it out of this battle alive, although I think the prospect of Barristan, Tyrion and Victarion meeting up may be too good for George to pass up.