As told by Ploon Kloovs:
Exploring the underground realm further, we uncovered several more monsters and a whole community of Drow and Greenskins, plus a few Stone Giants. I demanded their surrender and they began fighting amongst themselves in terror. We easily expelled the survivors, requiring them to retreat ever deeper into the tunnels, away from the light of civilised lands.
More worrying is that I caught one of the tall ones, the oracle, trying to curse me in the middle of the night, presumably in revenge for convincing everyone to destroy her evil Vampire pet. Fortunately, I rise above such petty vengeances, and Baravar and Garl would not let something like that happen to me.