So here's how we did this goofy quest. You need a cleric merc in group. Go north from the central ring and get the quest from the northmost (kind of north and a bit east of the main zone-in ring) quest giver.
Once the Unknown paths to the requester let the cleric merc get heal aggro, quick cast double invis on the group. Slowly head NNW and just stay far enough ahead of the Unknown that it doesn't break your invis. If you get too far ahead it will lose aggro on you.
In the NNW area is an area that is roughly in the shape of a right hand. In the "thumb" area is a bunch of spiders. By the time you kill 2 or 3 spiders you'll get the emote and update and can proceed with your guesses. You do not have to kill any of the random trash that's in your way so just let double invis make your life easy.
We did this 5 times and only had to kill a couple spiders each time.