These seem to be true-sight or true-sound. I was exploring the area with S/I up and I got aggroed by one of these twice. I wasn't casting or using a JA at the time. --Sivara 01:59, 21 July 2009 (UTC)
- I just ran right up in front of one with Sneak and Invis (to take a picture), and it didn't aggro me. --Kyrie 08:04, 22 July 2009 (UTC)
I was running through xarcabard (S) near the castle and one of these aggroed me for no damn reason. Yet another one didn't aggro another person in my party. I think certain ones can have true sight, or maybe in certain places or some other condition can trigger aggro. It's weird --Sabishii 16:35, May 16, 2010 (UTC)
They might blood aggro. Check your HP and see.