Vindiami the Ancient is at the end of this instance ( -70, 0, -110 ) /waypoint -70, 0, -110 and will be an NPC and not attackable until you have killed the four limestone watchers. These limestone watchers can be found inside alcoves around the zone, at
( -219, 0, -94 ) /waypoint -219, 0, -94,
( -200, 0, -61 ) /waypoint -200, 0, -61,
( -161, 0, -93 ) /waypoint -161, 0, -93,
( -146, 0, -145 ) /waypoint -146, 0, -145. Note: Recommended to keep this one alive until you have cleared the room where Vindiami is.
Each of these watchers will also be NPCs and not attackable until you have killed 4 brittle bones, each spawned by examining the 4 skeletons, 2 on each side of the watcher, and disturbed them. Once all the brittle bones are killed, the limestone watcher will turn into an attackable and aggro limestone watcher, level 28^^^ heroic. Repeat this for all four watchers, and Vindiami the Ancient will turn attackable and aggro, level 33 Heroic^^^.