How do i kill the big spider and/or squash the nest of spiders?
You need something that protects you from poison. You should have found black “phials”, or “webbster” somewhere along the way (tastes bad, feels good). Split off a party small enough so each character can drink one, do so, then squash all the little spiders in the nest. You get a gold necklace and a key for doing this. The key opens a door on the middle level that lets you move quickly from stairs up to stairs down. You can explore everything without this key.
