Board Thread:Bug Report/@comment-26361883-20150501215705/@comment-26452259-20150531180348

CrimsnMonkey wrote: What item do they drop? Key Necklaces, Dead Branches, other strange relics that are very helpful. The Key Necklace is a universal key that opens any locked golden chest. Dead branches are used as wood, and ingredients for a certain sword. I believe I have gotten a cross necklace from these ghosts aswell, maybe.

And I personally don't think this is a bug, more of something to 'spook' the player. And I like it. At first I thought I was in another dimension cause there was black all around my character.