We did this guy twice last night. Group consisted of two Level 68 Magi, both with Child of Wind air elementals, and Level 66 Cleric. Cleric got the adventure.
He spawns at approximately +645, +2300 -- from zone in, go west, then south, then east to the first 4 way, then north, then east. Stop at entrance to narrow tunnel and clear out the two static mobs (typically a Dragorn and a Griplan).
We waited for the pather to head west from spawn location and had pet pull him to camp. During one of the fights we got hit with the Dragornian Venom.
Two spawns yielded a Cloak of Evocation, a Muramite War Drum, and a Lesser Muramite Rune.
We ping ponged between this camp and the Discordling Collector camp (just south of the 4 way at approximately -530, +2750). He spawned twice also, but that's another story.
Edited, Fri Dec 23 12:13:32 2005