I'm up to 5/7 ghosts, and so far I've found them all in different regions. Do they typically spawn one to a region, or is it possible for more than one to appear in a single area? I was proceeding on the theory that it was one to a region, so I left most of Chakra Phool's potential ghost sites unexplored. But after finding none in Kajuu or Besara, I'm beginning to suspect I may have to go back. Unless I find two in Ilmenskie Deeps. XD