Spawns and roams top floor. If you turn left from QH zone and wait in room with old wooden cart he will roam in there. He can also spawn from other roaming mob on top floor.
Dropped Glowing Athlai Boots for me today, along with Gnollish Leather Boots and Aderise Bur. Soloed w/ 82 ranger 2k aa's HoT T2 geared. He was running up ramp to the first door by the open area near zone in. Beat him senseless in about 2 mins. He conned yellow to me at 82.
i was in the spawn when i saw him wandering. Pulled him and he was real easy for an 85 paladin, max hit on me was for 2k,i was buffed at 37k hp with a 4.2 k ac. Dropped gnollish shoes and glowing armor.
Killed him once undead and a few times alive. Dropped the dagger, pretty neat. Hope to get the ring. Great place for sk/shammy combo since the slows land hard on them:)