dredging in the depths

I'm having trouble locating zoldark the unholy or any way out of the second floor of the dungeon. All the paths are closed, I've killed all the enemies, and my quest log for the quest just says find and kill zoldark the unholy. Am I supposed to go back to the first floor and find him there? or is this some bug where i killed him before and the game doesnt recognize it?

appreciate any help....

Grab a keg of gunpowder from the store and drop it near the badly rendered wall. Walk through the new hole to get to the next level.

I can't kill Zoldark though, too much stuff kept respawning and the whole hench/hero party was getting spawn camped

ty very much

lol...killed zoldark and all i got was a req 11 gold earth staff....guess i wont be doing that run again

broadhead arrow > zoldark