During Hunt for the Necromancer, you must get one part of the Necromancer's book. that part you can get here. Go to the respawn place of Dragith Nurn and use the Malignius Mortifer pendant on Dragith Nurn. Now you talk to him. You must kill Dragith Nurn, he is lvl 50 now. But it is multicombat and the other monsters in the cave are high, use protect from ranged. After killing him he gives the pages. You can also kill the undead monsters in this cave for there drops after kill Dragith Nurn. its not multicombat after killing Dragith Nurn.