And, in another part of this same dungeon, while pixel hunting, I noticed several objects on the other side of a wall that I could find no access to--not even after some teleport travel.
The maps in
Divinity are laid out like a jig saw. Each map contains all houses, outside areas, rooms, basements, etc. on one 2D plane. Unfortunately, abilities like hearing are not masked when you are in different areas and you can see the monsters and NPCs on the mini-map when they are in these other areas.
Scroll around the battlefield maps to see what I mean. The masking doesn't work on those (last patch I checked!).
You probably have found some forgotten loot, but just keep the above in mind too.
