Wraith Pocket

The Wraith Pocket is this hidden part of the world that is inaccessible to mostly every being on earth. The only way for anyone to even know of its existence, is to enter one of the few ancient temples, built using wraithstone. It's a plane filled with beings that exist right next to you, and you wouldn't be able to tell. Only a few who have had even the slightest exposure to it, could maybe feel the hairs on the back of their neck arise when in a wraith's proximity.

  Wraith's appear in different forms, but mostly look like some kind of ghastly apparition. They only exist in areas that are located near wraithstones. Whenever someone actually finds their way inside and interacts with the wraithstones, they gain the ability to see the Wraith's. The Wraith's in turn are now able to interact with them, and can jump inside the person fusing with them. It will almost always change their physical appearance, but it definitely changes their mentality. As the the two beings coalesce, their thoughts merge into one, for better or worse.