This fight was almost as much fun as the first dragon I encountered in Emprise Du Lion (the Hivernal). I encountered the two dragons flying around overhead together. I took down the first dragon and returned with better gear to take on Kaltenzahn. He’s one of the more powerful dragons in the game, though luckily he’s weak to fire.
There is a third dragon in the area, but when I tried to take him on it ended pretty badly.