by jms123 » Thu Oct 15, 2020 5:20 pm
You don't have to fight the witches at all to open up the next level, though I don't recall the details of the dialog options anymore.
Not sure if anything has changed, at the time I played around 1.02 - 1.03, you could freely go up and down those stairs by the witches. You weren't blocked until you tried to go back to around where the goblin king was. There was a cave-in around there after going up to the high sewers, so I couldn't go further back, but I could freely travel between the high sewers and the witch area. I kept the witches around so I could ask for scrolls as I needed them, instead of picking ones before I knew what I needed. Plus you can shop from them too. At the time I think they were restocking their potions due to some trigger (combat or map transition or something), which may have been patched out since. Then I went back when I was just about done with the high sewers and had all my scrolls and knew I wouldn't/couldn't buy anything else I wanted from them, and killed them, then did a couple of things that required an item from them after that (discussed in those other threads).
One trick for the hydra, the summoner of the hydra doesn't actually summon it until he gets below a certain HP level. If you manage to kill him outright before he goes below that value, he won't summon the hydra. The hydra will show up by itself after leaving and returning to the area, and you could rest first (if you have any available). Facing the hydra by itself while rested is fairly easy. Not sure if that is working as intended.