Look "closer" my friend.Yea CGI Trailer coming eventually.
It's a magic stone with a fire glown. And them a kind of green shiny line passes trough it.
Only the video: http://thewitcher.com/public/gfx/thetrail/01.mp4
What you think guys?
It's not a stone.Look closely guys:it's a crystal skull.Something magical lies inside itThe stone has a thooth format, it's polished with some carvings. It's definitely magic work