Xhorroz now needs you to find three dreadknights and their daggers. When you reach each location, an NPC skeleton will appear then fall dead to the floor. You must right-click the body and select 'search'. When you do this, an encounter of 3 droags will spawn. You must kill them.
The first corpse is found on the way to The Gorgs' Pit on the blue vapor grid at ( -32, 57, 243 ) /waypoint -32, 57, 243
You must now move to the Pool of Spirits for second skeleton at ( 59, 45, 103 ) /waypoint 59, 45, 103
Last corpse is in the right corridor leaving Hall of Rites ( -66, 65, -57 ) /waypoint -66, 65, -57
If you can't interact with the skeleton try zooming-in your camera view to First Person and/or crouching. Some of the larger races have camera positions too far above the floor for these to be interacted with.