I’m stuck in the basement of the Troglodyte castle. I can clear the whole area until there are only two things left to do:

(1) a room with floor panels you can control through a control panel, leading to a cracked wall, and

(2) a path by a sign saying the demon’s “MACHINE” behind two rocks.

Clearly I need at least one Stoneshatter scroll and more likely three, and I have none. I loaded an earlier save and will just have to be on the lookout for scrolls, or figure out the scroll-making system. It’s a shame because there’s a lot of good loot down there – you can go up and kill the troglodyte king but it gives you a bad outcome.