I've been trying to connect some dots for Saturday's upcoming session and need help. The party has successfully exposed and imprisoned an underground Banite ne'er-do-well and he's about to be hung for his crimes. He answers to a beholder kingpin named Lord Markuul, who the party knows about, but has remained evasive to-date. In the upcoming session I'd like to have Lord Markuul and the Banite all dispatched and move the party onto bigger, better, and badder things. Problem is, I can't for the life of me settle on how to go about it. I know there's not a lot to go on, but do y'all have any ideas?