"... Yes, that sounds familiar. Not quite the same, sickly nodes will leave - something left, everything's not grey dust after, you can sort of see what it was before, but it definitely does something like that. Stay near a sickly node long enough, and you'll start to feel - listless, depressed, tired. Eventually you'll want to do nothing but curl up and sleep, and when you do, you don't wake up. Monsters that are like travelling malevolent sickly nodes, ugh. How awful."