There's a spot in the basement of the Last Light inn where you fight some meenlocks (?) in a cave or short passage (between the inn and the outside).
Almost immediately after the meenlocks you enter a small area of the bad SC.
There is a small cabin/home with a locked chest at the far end. I think you have to climb some vines to get to the cabin.
The game puts you in TB due to the bad SC so trying to get to the chest results in a lot of damage.
You can also get to the cabin from the SC lands/ancient battleground area but I can't remember where that was.
There may be others but I had a lantern by then so didn't take much notice.
