660, 650, -15 (north central part of the square room which is slightly north of the middle stadium-shaped room) 250, -70, -30 (center of the oval room to the east of the zone)
The given location (-767, -1269) isn't even inside the map bounds.
Good's map pack reports it at 595, 666, -10 in the same room as Elite Overlord Vijaz. I found her in this room (though not at that exact location). Both nameds shared the same PH in the room, the only "noc" in the room. There are at least 8 mobs in the room, including some see invis rats and murkgliders. The safest place I found to set up when afk was corner just west of the "round" room. A single bat paths through there, but doesn't see invis.