I killed Zugg with a group of 8. Below is a picture of her dead body. We did not get any cinematics or slides. "Passage to Verbobonc" is NOT available on the right hand side of the world map. Is there a way I can force the game into moving on?
True, this forced teleport to Verbobonc is a weakness of the current setup. I wish they'd find a better transition. Why not an escort mission for the two girl prisoners? They'd tell you how to travel to Verbobonc, but if you then did it at the early stage, you'd be intercepted by a search patrol from Verbobonc, who take the girls off your hands, but tell you to come see the Viscount for a reward when you are done in the temple. This would also set up this little storyline with the girl in Verbobonc a bit. Sorry, no solution for your immediate problem here.
You could open up the console and type game.areas[14] = 1 and Verbobonc should appear in the list to the right of the world map. This information and much much more can be found in gazra_1971's TOEE GAME GUIDE AND WALKTHROUGH.