
I never saw anythig actually in this square, I openned the door and then waited for them all to come out. When I came in there was just this sparkly swirl and a neaby rogue.
Is this a bug, or is it some left over spell which will eventually expire. I've run around looking for invisible people but found nothing. Mouse-over just says its floor, and when I run, it doesn't stop for it.
Edit: Left the dungeon (was first level of Dreadfell) to sell my inventory and came back. Sparkles are still there.
Edit: OK, has happenned a few times now. So probably a known thing, and this is just the first time I've made it far enough to have opponents with spell effects.