The Demons would despawn. You couldn’t even use your pet and each of the 4 had a different challenge to them. Ungoro was kinda the easiest with Silithis being the hardest. I can’t remember the Winterspring one or the out outside Blackrock Mountain. The hard part about that one was people wanting to “help” or grief.
I think I’m remembering Benediction. I did both but gd that was now 16 years ago. Anyways, I remember healing people in the EPL and I think that’s when an npc spawned to kill you?
Un’goro was the one I don’t remember. I remember the BRM because that’s the first time someone “helped” me, I remember Winterspring because I had to clear a path to kite and I remember Silithis because you’re right, it was the hardest!