A Burglar's Errand

From Echoes of Angmar
A Burglar's Errand
Level 30
Type Solo
Region Lonelands
Quest-giver Burglar Trainer
Class Burglar

Travel to Naerost by talking to the NPC.

When you arrive, stealth all the way through the area (you should recognize it from the 20ish level quests you probably did there). Go to the very back NE corner where the boss hangs out. The sword is on a chest in that enclosure.