Turns out the dragon's death isn't the end of the game, all it did was darken the sky and it is now raining ash continuously everywhere. Worse, some of the monsters in the country side have grown stronger too so we head back to Gran Soren to get some answers and instead find a massive, gaping hole that has consumed over half the city, including Fournival's cell and Jasper's home. Parkour kid Pip blames me for his parents death. Just can't win with some people.
I go visit the Duke who has now withered into an old man. He cannot believe that anyone could have slain the dragon, and in his madness attacks me feebly with a sword as he believes I took the same deal he did. I easily kick him down, but his guardsmen led by Ser Maximillian come to his aid in an unending swarm - believing his lies that I placed a curse on him. I lost count of how many I kill during the escape/slaughter. Ser Maximillian is among them.
To be fair, spin kicking a duke is probably against the law.
Fortunately enough guards died that they are only congregating now at the Duke's castle, letting us freely roam what's left of the city. Despite that, we leave anyway to do some of the new hunting quests, including putting an end to the poison spitting hydra who has resurfaced at the Shadow Fort. Margel's shield boost is handy which makes it easier to hop up there and chop off its heads, as is Cedric's fire magic which slows them from growing back. It takes a bit of time, but we are victorious!